A Portland Medical Office Building Just Sold for $23.5 Million, Topping Every Maine Office Deal in 2026

A 55,875 SF medical office building at 33 Sewall Street in Portland sold for $23.5 million, the largest Maine office sale recorded in 2026. AG-SC Sewall Street Owner LLC acquired the asset from Fore River Realty Associates in a deal brokered by The Dunham Group.


A medical office building in Portland changed hands for $23.5 million, a sum that ranks as the largest office investment sale recorded in Maine so far in 2026.

Advising on the deal were Tom Moulton, Katie Breggia, TC Haffenreffer, and Sylas Hatch of The Dunham Group, a Portland brokerage that has operated across Maine for more than four decades. Their team carried the asset from initial marketing through to closing.

The price works out to roughly $421 per SF. Medical office buildings occupy a distinct corner of the commercial market, since properties leased to healthcare providers typically carry longer terms and steadier occupancy than conventional office space. That profile has continued to attract investors across secondary markets throughout the Northeast, even as appetite for traditional office product has shifted.

Mainebiz reported the particulars of the sale. AG-SC Sewall Street Owner LLC acquired the 55,875 SF property at 33 Sewall Street from Fore River Realty Associates, with the transaction closing on March 24.