<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001794039</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0002027317</issuerCik>
      <issuerName>Curbline Properties Corp.</issuerName>
      <secFileNumber>001-42265</secFileNumber>
      <issuerAddress>
        <com:street1>320 PARK AVENUE</com:street1>
        <com:city>NEW YORK</com:city>
        <com:stateOrCountry>NY</com:stateOrCountry>
        <com:zipCode>10022</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>216-755-5500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Fennerty Conor</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Wells Fargo Clearing Services</name>
        <address>
          <com:street1>1 North Jefferson Avenue</com:street1>
          <com:city>St. Louis</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63103</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>28000</noOfUnitsSold>
      <aggregateMarketValue>632996.85</aggregateMarketValue>
      <noOfUnitsOutstanding>105215056</noOfUnitsOutstanding>
      <approxSaleDate>06/27/2025</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>common</securitiesClassTitle>
      <acquiredDate>02/22/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>28000</amountOfSecuritiesAcquired>
      <paymentDate>02/22/2023</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>28,000 shares sold were acquired from 2/22/2023 to 9/15/2024.</remarks>
    <noticeSignature>
      <noticeDate>06/27/2025</noticeDate>
      <signature>Conor Fennerty</signature>
    </noticeSignature>
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144
0001794039
XXXXXXXX
LIVE
0002027317
Curbline Properties Corp.
001-42265
320 PARK AVENUE
NEW YORK
NY
10022
216-755-5500
Fennerty Conor
Officer
Director
common
Wells Fargo Clearing Services
1 North Jefferson Avenue
St. Louis
MO
63103
28000
632996.85
105215056
06/27/2025
NYSE
common
02/22/2023
Compensation
Issuer
N
28000
02/22/2023
N/A
Y
28,000 shares sold were acquired from 2/22/2023 to 9/15/2024.
06/27/2025
Conor Fennerty