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A Boston office building steps from the planned 1.6 million-square-foot Exchange South End life science building has sold for $13.75 million, according to documents on file at the Suffolk Registry of Deeds.

CBRE’s Boston Capital Markets team represented the seller of 46 Plympton St., Legacy Real Estate Ventures, and procured the buyer, Transom Real Estate. CBRE’s Boston Capital Markets team includes Scott Dragos, Doug Jacoby, Chris Skeffington, Roy Sandeman, Anthony Hayes, Timothy Mulhall and Daniel Hines.

“After purchasing the asset in 2016, ownership has successfully executed its business plan through the stabilization of the asset, and we are thrilled to have played our part in the disposition process,” Sanderman said in a statement.

The building is 100 percent leased to five tenants, including Camp Harbor View and Norbella, CBRE said in a statement. The 5-story 28,600-square-foot office building offers 13-foot clear heights, hardwood floors, significant natural light, bicycle storage and shower facilities and was most recently assessed at $3.32 million, according to city records.