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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>As filed with the Securities and Exchange
  Commission on June 5, 2018</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Registration No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B></P>
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B></B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>
  
  
  
  
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>U.S. SECURITIES
  AND EXCHANGE COMMISSION</B></FONT></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549 </B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>
  
  
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 12pt"><B>FORM S-8
  </B></FONT></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>REGISTRATION STATEMENT </B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Under </B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>The Securities Act of 1933 </B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 14pt"><B>SG BLOCKS,
  INC.</B></FONT></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of registrant as specified in
  its charter)</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <!-- Field: Rule-Page --><DIV ALIGN="CENTER" STYLE="margin-top: 0; margin-bottom: 0"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid; width: 35%">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
      <TD STYLE="width: 49%; font-size: 10pt; text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt"><B>Delaware</B></FONT></TD>
      <TD STYLE="width: 2%; font-size: 10pt; text-align: center; padding-bottom: 1.5pt">&nbsp;</TD>
      <TD STYLE="width: 49%; font-size: 10pt; text-align: center; border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt"><B>95-4463937</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(State or other jurisdiction of</P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">incorporation or organization)</P></TD>
      <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD>
      <TD>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(IRS Employer</P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Identification No.)</P></TD></TR>
  </TABLE>
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>195 Montague Street, 14th Floor, Brooklyn,
  NY 11201</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address of principal registered offices)
  (Zip Code)</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SG Blocks, Inc. Stock Incentive Plan</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Full title of the Plan)</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
      <TD STYLE="width: 49%">
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Paul M. Galvin<BR>
          SG Blocks, Inc.<BR>
          195 Montague Street, 14th Floor<BR>
          Brooklyn, NY 11201</B></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Agent for Service of Process)</P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(646) 240-4235</B></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Telephone number, including area code,
          of agent for service)</P></TD>
      <TD STYLE="width: 2%">&nbsp;</TD>
      <TD STYLE="width: 49%">
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><I>With a copy to:</I></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>David D. Watson</B></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Thompson Hine LLP</B></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>3900 Key Center, 127 Public Square</B></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Cleveland, Ohio 44114-1291</B></P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(216) 566-5598</B></P></TD></TR>
  </TABLE>
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 24.5pt">Indicate by check
  mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting
  company. See the definitions of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo; &ldquo;smaller reporting
  company,&rdquo; and &ldquo;emerging growth company&rdquo; in Rule&nbsp;12b-2 of the Exchange Act.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
  
  <TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
      <TD STYLE="width: 20%"><FONT STYLE="font-size: 10pt">Large&nbsp;accelerated&nbsp;filer</FONT></TD>
      <TD STYLE="width: 25%">&#9744;</TD>
      <TD STYLE="width: 50%"><FONT STYLE="font-size: 10pt">Accelerated&nbsp;filer</FONT></TD>
      <TD STYLE="width: 5%">&#9744;</TD></TR>
  <TR STYLE="vertical-align: bottom">
      <TD><FONT STYLE="font-size: 10pt">Non-accelerated filer</FONT></TD>
      <TD>&#9744;<FONT STYLE="font-size: 10pt">&nbsp;&nbsp;</FONT></TD>
      <TD><FONT STYLE="font-size: 10pt">Smaller&nbsp;reporting&nbsp;company</FONT></TD>
      <TD>&#9746;&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
      <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">(Do not check if a smaller reporting company)</FONT></TD>
      <TD><FONT STYLE="font-size: 10pt">Emerging growth company</FONT></TD>
      <TD>&#9744;</TD></TR>
  </TABLE>
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">If an emerging growth company, indicate by check mark if the
  registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
  provided pursuant to Section 7(a)(2)(B) of the Securities Act. &#9744;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>
  
  <!-- Field: Page; Sequence: 1 -->
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CALCULATION OF REGISTRATION FEE</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>
  
  <TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
      <TD STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Title of Securities to be Registered</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
      <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><BR>Amount to be</B></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Registered(1)</B></P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
      <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Proposed&nbsp;Maximum</B></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Offering Price</B></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Per Share(2)</B></P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
      <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Proposed&nbsp;Maximum</B></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Aggregate Offering</B></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Price(2)</B></P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
      <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Amount of</B></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Registration Fee</B></P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
      <TD STYLE="width: 43%; text-align: left; padding-bottom: 4pt">Common Stock, $0.01 par value per share, to be issued pursuant to the SG Blocks, Inc. Stock Incentive Plan</TD><TD STYLE="width: 1%; padding-bottom: 4pt">&nbsp;</TD>
      <TD STYLE="width: 20%; text-align: center; padding-bottom: 4pt">1,000,000 shares</TD><TD STYLE="width: 1%; padding-bottom: 4pt">&nbsp;</TD>
      <TD STYLE="width: 1%; border-bottom: Black 4pt double; text-align: left">$</TD><TD STYLE="width: 9%; border-bottom: Black 4pt double; text-align: right">4.87</TD><TD STYLE="width: 1%; padding-bottom: 4pt; text-align: left">&nbsp;</TD><TD STYLE="width: 1%; padding-bottom: 4pt">&nbsp;</TD>
      <TD STYLE="width: 1%; border-bottom: Black 4pt double; text-align: left">$</TD><TD STYLE="width: 9%; border-bottom: Black 4pt double; text-align: right">4,865,000</TD><TD STYLE="width: 1%; padding-bottom: 4pt; text-align: left">&nbsp;</TD><TD STYLE="width: 1%; padding-bottom: 4pt">&nbsp;</TD>
      <TD STYLE="width: 1%; border-bottom: Black 4pt double; text-align: left">$</TD><TD STYLE="width: 9%; border-bottom: Black 4pt double; text-align: right">605.69</TD><TD STYLE="width: 1%; padding-bottom: 4pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
      <TD COLSPAN="15" STYLE="text-align: center"></TD></TR>
  </TABLE>
  
  <P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>
  
  <TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
  <TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">(1)</TD><TD STYLE="text-align: left">Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;),
  this registration statement on Form S-8 (the &ldquo;Registration Statement&rdquo;) also covers such additional shares of common
  stock, par value $0.01 per share (the &ldquo;Common Stock&rdquo;), of SG Blocks, Inc. (the &ldquo;Registrant&rdquo;) that may become
  issuable under the SG Blocks, Inc. Stock Incentive Plan (the &ldquo;Incentive Plan&rdquo;) by reason of certain corporate transactions
  or events, including any stock dividend, stock split, recapitalization or any other similar transaction effected without the receipt
  of consideration that results in an increase in the number of the Registrant&rsquo;s outstanding shares of Common Stock.</TD></TR></TABLE>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify; text-indent: -0.5in">&nbsp;</P>
  
  <TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
  <TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">(2)</TD><TD STYLE="text-align: left">Estimated solely for the purpose of calculating the registration fee pursuant to Rules 457(c) and 457(h) under the Securities
  Act and based upon the average of the high and low trading prices of the Registrant&rsquo;s Common Stock as reported by The Nasdaq
  Stock Market LLC on May 30, 2018.</TD></TR></TABLE>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>
  
  <!-- Field: Rule-Page --><DIV ALIGN="LEFT" STYLE="margin-top: 0; margin-bottom: 0"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid; border-bottom: Black 2pt solid; width: 100%">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>
  
  
  
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXPLANATORY NOTE</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">This Registration Statement registers an
  additional 1,000,000 shares of Common Stock which are authorized for issuance under the Incentive Plan, pursuant to an amendment
  to the Incentive Plan which was approved by the Registrant&rsquo;s stockholders at the 2018 annual meeting of stockholders held
  on June 1, 2018.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The Registrant previously filed a Registration
  Statement on Form S-8 (File No. 333-223950) with the U.S. Securities and Exchange Commission (the &ldquo;SEC&rdquo;) to register
  1,500,000 shares of Common Stock for issuance pursuant to the Incentive Plan.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Upon the effectiveness of this Registration
  Statement, an aggregate of 2,500,000 shares of Common Stock will be registered for issuance from time to time under the Incentive
  Plan. Pursuant to General Instruction E to Form S-8, the contents of the Registration Statement on Form S-8 (File No. 333-223950)
  filed with the SEC on March 27, 2018 are hereby incorporated by reference, except to the extent supplemented, amended or superseded
  by the information set forth herein. Only those items of Form S-8 containing new information not contained in the earlier registration
  statements are presented herein.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>
  
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>PART II</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION REQUIRED IN THE REGISTRATION
  STATEMENT</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 8. Exhibits.</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>
  
  <TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
      <TD STYLE="width: 8%; border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt"><B>Exhibit <BR>
  Number</B></FONT></TD>
      <TD STYLE="width: 1%; padding-bottom: 1.5pt">&nbsp;</TD>
      <TD STYLE="width: 91%; border-bottom: Black 1.5pt solid; text-align: left; vertical-align: bottom"><FONT STYLE="font-size: 10pt"><B>Description of Exhibits</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.1</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390016014815/f8k101515ex3i_sgblocksinc.htm"><FONT STYLE="font-size: 10pt">Amended and Restated Certificate of Incorporation of SG Blocks, Inc. (incorporated herein by reference to Exhibit 3.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on July 7, 2016).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: White">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.2</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390017001852/f8k022817ex3i_sgblocksinc.htm"><FONT STYLE="font-size: 10pt">Amendment to Amended and Restated Certificate of Incorporation of SG Blocks, Inc. (incorporated herein by reference to Exhibit 3.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on February 28, 2017).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.3</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390017001664/f10k2016ex3iv_sgblocks.htm"><FONT STYLE="font-size: 10pt">Amended and Restated By-laws of SG Blocks, Inc. (incorporated herein by reference to Exhibit 3.4 to the Annual Report on Form 10-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on February 21, 2017).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: White">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.4</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390017001060/def14c0217a_sgblocks.htm"><FONT STYLE="font-size: 10pt">SG Blocks, Inc. Stock Incentive Plan (incorporated herein by reference to the Information Statement on Schedule 14C as filed by SG Blocks, Inc. with the Securities and Exchange Commission on February 8, 2017).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.5</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390018007248/f8k060118ex10-1_sgblock.htm" STYLE="-sec-extract: exhibit">Amendment No. 1 to SG Blocks, Inc. Stock Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on June 5, 2018).</A></FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: White">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.6</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390016017851/f8k102616ex4i_sgblocksinc.htm"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form of SG Blocks, Inc. Incentive Stock Option Agreement (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on November 1, 2016).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.7</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="http://www.sec.gov/Archives/edgar/data/1023994/000121390016017851/f8k102616ex10ii_sgblocksinc.htm"><FONT STYLE="font-size: 10pt">Form of SG Blocks, Inc. Non-Qualified Stock Option Agreement (incorporated herein by reference to Exhibit 10.2 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on November 1, 2016).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: White">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">5.1+</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="fs8june2018ex5-1_sgblocks.htm"><FONT STYLE="font-size: 10pt">Opinion of Thompson Hine LLP.</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">23.1+</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><A HREF="fs8june2018ex23-1_sgblocks.htm"><FONT STYLE="font-size: 10pt">Consent of Whitley Penn LLP, Independent Registered Public Accounting Firm. </FONT></A></TD></TR>
  <TR STYLE="vertical-align: top; background-color: White">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">23.3+</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt"><A HREF="fs8june2018ex5-1_sgblocks.htm">Consent of Thompson Hine LLP (included in Exhibit 5.1).</A> </FONT></TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">24.1+</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt"><A HREF="#a_001">Power of Attorney (included on signature page).</A> </FONT></TD></TR>
  </TABLE>
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">+ Filed herewith.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
  
  
  <!-- Field: Page; Sequence: 4; Value: 1 -->
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  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><A NAME="a_001"></A><B>SIGNATURES</B></P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Pursuant to the requirements of the Securities
  Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing
  on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized,
  in the City of New York, State of New York, on June 5, 2018.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
  
  <TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD COLSPAN="2"><B>SG BLOCKS, INC.</B></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="width: 60%">&nbsp;</TD>
      <TD STYLE="width: 4%"><FONT STYLE="font-size: 10pt">By:</FONT></TD>
      <TD STYLE="width: 36%; border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Paul M. Galvin</FONT></TD></TR>
  <TR>
      <TD>&nbsp;</TD>
      <TD STYLE="vertical-align: top">&nbsp;</TD>
      <TD STYLE="vertical-align: bottom">
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Paul M. Galvin</P>
          <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Chief Executive Officer and Chairman of the Board</P></TD></TR>
  </TABLE>
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in"><B>KNOW ALL PERSONS BY
  THESE PRESENTS</B>, that each person whose signature appears below does hereby constitute and appoint jointly and severally, Paul
  M. Galvin and Mahesh S. Shetty, or either of them, with full power of substitution and full power to act without the other, his
  or her true and lawful attorney-in-fact and agent to act for him or her in his or her name, place, and stead, in any and all capacities,
  to sign any or all amendments to this Registration Statement, and to file each of the same, with all exhibits thereto, and other
  documents in connection therewith or herewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact
  and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to
  be done in and about the premises in order to effectuate the same as fully, to all intents and purposes, as they, he or she might
  or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully
  do or cause to be done by virtue hereof.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in">&nbsp;</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in">Pursuant to the requirements
  of the Securities Exchange Act of 1934, this Registration Statement has been signed below by the following persons on behalf of
  the Registrant and in the capacities and on the date indicated.</P>
  
  <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in">&nbsp;</P>
  
  <TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
      <TD STYLE="width: 24%; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Signature</B></FONT></TD>
      <TD STYLE="width: 2%">&nbsp;</TD>
      <TD STYLE="width: 48%; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Title</B></FONT></TD>
      <TD STYLE="width: 2%">&nbsp;</TD>
      <TD STYLE="width: 24%; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Date</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR>
      <TD STYLE="vertical-align: bottom; border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Paul M. Galvin</FONT></TD>
      <TD STYLE="vertical-align: top">&nbsp;</TD>
      <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">Chief Executive Officer and Chairman of the Board</FONT></TD>
      <TD STYLE="vertical-align: top">&nbsp;</TD>
      <TD STYLE="vertical-align: top; text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">Paul M. Galvin</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">(Principal Executive Officer)</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Mahesh S. Shetty</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">President, Chief Financial Officer and Director (Principal </FONT></TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">Mahesh S. Shetty</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">Financial Officer and Principal Accounting Officer)</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Balan R. Ayyar</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">Director</FONT></TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">Balan R. Ayyar</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Yaniv Blumenfeld</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">Director</FONT></TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">Yaniv Blumenfeld</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Christopher Melton</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">Director</FONT></TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">Christopher Melton</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ Sean McAvoy</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">Director</FONT></TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">Sean McAvoy</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
      <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-size: 10pt">/s/ A. Richard Moore, Jr.</FONT></TD>
      <TD>&nbsp;</TD>
      <TD><FONT STYLE="font-size: 10pt">Director</FONT></TD>
      <TD>&nbsp;</TD>
      <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">June 5, 2018</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
      <TD><FONT STYLE="font-size: 10pt">A. Richard Moore, Jr.</FONT></TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD></TR>
  </TABLE>
  
  <P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>
  
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metadata_documents: [{"type": "S-8", "sequence": "1", "filename": "fs8june2018_sgblocks.htm", "description": "REGISTRATION STATEMENT", "secsgml_size_bytes": 36901}]
metadata_filer: {"company-data": {"conformed-name": "SG BLOCKS, INC.", "cik": "0001023994", "assigned-sic": "5030", "irs-number": "954463937", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-225439", "film-number": "18881651"}, "business-address": {"street1": "195 MONTAGUE STREET, 14TH FLOOR", "city": "BROOKLYN", "state": "NY", "zip": "11201", "phone": "(646) 240-4235"}, "mail-address": {"street1": "195 MONTAGUE STREET, 14TH FLOOR", "city": "BROOKLYN", "state": "NY", "zip": "11201"}, "former-company": [{"former-conformed-name": "CDSI HOLDINGS INC", "date-changed": "19990114"}, {"former-conformed-name": "PC411 INC", "date-changed": "19961001"}]}
text: As filed with the Securities and Exchange
  Commission on June 5, 2018
  Registration No. 333-
  U.S. SECURITIES
  AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  FORM S-8
  REGISTRATION STATEMENT
  Under
  The Securities Act of 1933
  SG BLOCKS,
  INC.
  (Exact name of registrant as specified in
  its charter)
  Delaware
  95-4463937
  (State or other jurisdiction of
  incorporation or organization)
  (IRS Employer
  Identification No.)
  195 Montague Street, 14th Floor, Brooklyn,
  NY 11201
  (Address of principal registered offices)
  (Zip Code)
  SG Blocks, Inc. Stock Incentive Plan
  (Full title of the Plan)
  Paul M. Galvin
  SG Blocks, Inc.
  195 Montague Street, 14th Floor
  Brooklyn, NY 11201
  (Agent for Service of Process)
  (646) 240-4235
  (Telephone number, including area code,
          of agent for service)
  With a copy to:
  David D. Watson
  Thompson Hine LLP
  3900 Key Center, 127 Public Square
  Cleveland, Ohio 44114-1291
  (216) 566-5598
  Indicate by check
  mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting
  company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting
  company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
  Large accelerated filer
  ☐
  Accelerated filer
  ☐
  Non-accelerated filer
  ☐
  Smaller reporting company
  ☒
  (Do not check if a smaller reporting company)
  Emerging growth company
  ☐
  If an emerging growth company, indicate by check mark if the
  registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
  provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐
  CALCULATION OF REGISTRATION FEE
  Title of Securities to be Registered
  Amount to be
  Registered(1)
  Proposed Maximum
  Offering Price
  Per Share(2)
  Proposed Maximum
  Aggregate Offering
  Price(2)
  Amount of
  Registration Fee
  Common Stock, $0.01 par value per share, to be issued pursuant to the SG Blocks, Inc. Stock Incentive Plan
  1,000,000 shares
  $
  4.87
  $
  4,865,000
  $
  605.69
  (1)
  Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"),
  this registration statement on Form S-8 (the "Registration Statement") also covers such additional shares of common
  stock, par value $0.01 per share (the "Common Stock"), of SG Blocks, Inc. (the "Registrant") that may become
  issuable under the SG Blocks, Inc. Stock Incentive Plan (the "Incentive Plan") by reason of certain corporate transactions
  or events, including any stock dividend, stock split, recapitalization or any other similar transaction effected without the receipt
  of consideration that results in an increase in the number of the Registrant's outstanding shares of Common Stock.
  (2)
  Estimated solely for the purpose of calculating the registration fee pursuant to Rules 457(c) and 457(h) under the Securities
  Act and based upon the average of the high and low trading prices of the Registrant's Common Stock as reported by The Nasdaq
  Stock Market LLC on May 30, 2018.
  EXPLANATORY NOTE
  This Registration Statement registers an
  additional 1,000,000 shares of Common Stock which are authorized for issuance under the Incentive Plan, pursuant to an amendment
  to the Incentive Plan which was approved by the Registrant's stockholders at the 2018 annual meeting of stockholders held
  on June 1, 2018.
  The Registrant previously filed a Registration
  Statement on Form S-8 (File No. 333-223950) with the U.S. Securities and Exchange Commission (the "SEC") to register
  1,500,000 shares of Common Stock for issuance pursuant to the Incentive Plan.
  Upon the effectiveness of this Registration
  Statement, an aggregate of 2,500,000 shares of Common Stock will be registered for issuance from time to time under the Incentive
  Plan. Pursuant to General Instruction E to Form S-8, the contents of the Registration Statement on Form S-8 (File No. 333-223950)
  filed with the SEC on March 27, 2018 are hereby incorporated by reference, except to the extent supplemented, amended or superseded
  by the information set forth herein. Only those items of Form S-8 containing new information not contained in the earlier registration
  statements are presented herein.
  1
  PART II
  INFORMATION REQUIRED IN THE REGISTRATION
  STATEMENT
  Item 8. Exhibits.
  Exhibit
  Number
  Description of Exhibits
  4.1
  Amended and Restated Certificate of Incorporation of SG Blocks, Inc. (incorporated herein by reference to Exhibit 3.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on July 7, 2016).
  4.2
  Amendment to Amended and Restated Certificate of Incorporation of SG Blocks, Inc. (incorporated herein by reference to Exhibit 3.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on February 28, 2017).
  4.3
  Amended and Restated By-laws of SG Blocks, Inc. (incorporated herein by reference to Exhibit 3.4 to the Annual Report on Form 10-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on February 21, 2017).
  4.4
  SG Blocks, Inc. Stock Incentive Plan (incorporated herein by reference to the Information Statement on Schedule 14C as filed by SG Blocks, Inc. with the Securities and Exchange Commission on February 8, 2017).
  4.5
  Amendment No. 1 to SG Blocks, Inc. Stock Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on June 5, 2018).
  4.6
  Form of SG Blocks, Inc. Incentive Stock Option Agreement (incorporated herein by reference to Exhibit 10.1 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on November 1, 2016).
  4.7
  Form of SG Blocks, Inc. Non-Qualified Stock Option Agreement (incorporated herein by reference to Exhibit 10.2 to the Current Report on Form 8-K as filed by SG Blocks, Inc. with the Securities and Exchange Commission on November 1, 2016).
  5.1+
  Opinion of Thompson Hine LLP.
  23.1+
  Consent of Whitley Penn LLP, Independent Registered Public Accounting Firm.
  23.3+
  Consent of Thompson Hine LLP (included in Exhibit 5.1).
  24.1+
  Power of Attorney (included on signature page).
  + Filed herewith.
  2
  SIGNATURES
  Pursuant to the requirements of the Securities
  Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing
  on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized,
  in the City of New York, State of New York, on June 5, 2018.
  SG BLOCKS, INC.
  By:
  /s/ Paul M. Galvin
  Paul M. Galvin
  Chief Executive Officer and Chairman of the Board
  KNOW ALL PERSONS BY
  THESE PRESENTS
  , that each person whose signature appears below does hereby constitute and appoint jointly and severally, Paul
  M. Galvin and Mahesh S. Shetty, or either of them, with full power of substitution and full power to act without the other, his
  or her true and lawful attorney-in-fact and agent to act for him or her in his or her name, place, and stead, in any and all capacities,
  to sign any or all amendments to this Registration Statement, and to file each of the same, with all exhibits thereto, and other
  documents in connection therewith or herewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact
  and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to
  be done in and about the premises in order to effectuate the same as fully, to all intents and purposes, as they, he or she might
  or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully
  do or cause to be done by virtue hereof.
  Pursuant to the requirements
  of the Securities Exchange Act of 1934, this Registration Statement has been signed below by the following persons on behalf of
  the Registrant and in the capacities and on the date indicated.
  Signature
  Title
  Date
  /s/ Paul M. Galvin
  Chief Executive Officer and Chairman of the Board
  June 5, 2018
  Paul M. Galvin
  (Principal Executive Officer)
  /s/ Mahesh S. Shetty
  President, Chief Financial Officer and Director (Principal
  June 5, 2018
  Mahesh S. Shetty
  Financial Officer and Principal Accounting Officer)
  /s/ Balan R. Ayyar
  Director
  June 5, 2018
  Balan R. Ayyar
  /s/ Yaniv Blumenfeld
  Director
  June 5, 2018
  Yaniv Blumenfeld
  /s/ Christopher Melton
  Director
  June 5, 2018
  Christopher Melton
  /s/ Sean McAvoy
  Director
  June 5, 2018
  Sean McAvoy
  /s/ A. Richard Moore, Jr.
  Director
  June 5, 2018
  A. Richard Moore, Jr.
  3