Possibly more than one building? See "including Roseville, Wallsgrove House, and Beech (later Arabin) House" at https://www.british-history.ac.uk/vch/essex/vol5/pp151-162. Also zoom in on https://historicengland.org.uk/listing/the-list/list-entry/1124098 which appears to show Roseville and Beech House on opposite sides of Pauls Nursery Road. Though no building outline for Beech House. Also mentioned at http://planpub.eppingforestdc.gov.uk/NorthgatePublicDocs/00468623.pdf but that confirms Arabin House at a different location (in Manor Road, where OSM maps it) with "Victoria County History suggest that Beech House was the original name
applied to Arabin House". So I think further study is required.