55 Congress Street, Portsmouth, NH

55 Congress Street in Portsmouth, NH is listed for $624,000 on PrimeMLS.

That is about $737 per square foot of finished living space.

It came on the market on August 3, 2026.

55 Congress Street in Portsmouth, NH has 1 bedroom and 1 bathroom in 847 square feet of finished living space.

The association fee for 55 Congress Street in Portsmouth, NH is $318 (monthly), per the MLS.

The MLS lists the fee as covering sewer, trash and water.

Ask for the association documents and budget to see exactly what the fee covers.

55 Congress Street in Portsmouth, NH is heated by wall units, per the MLS.

Cooling: wall unit(s).

55 Congress Street in Portsmouth, NH has public water and public sewer, per the MLS.

MLS details — water: public; sewer: public.

Electric: circuit breakers.

Other utilities: cable available.

Yes. 55 Congress Street in Portsmouth, NH has a basement with interior access.

The MLS describes it as full and storage space.

Yes. 55 Congress Street in Portsmouth, NH is listed as Active on PrimeMLS (MLS #5103102).

Status can change quickly; contact us to confirm availability before you visit.

55 Congress Street in Portsmouth, NH is listed by Christopher Austin of Great Island Realty LLC (603-433-3350).

Owl's Nest Real Estate shows it through the PrimeMLS IDX feed; we are not the listing brokerage.

55 Congress Street in Portsmouth, NH is a condominium built in 1988.

The MLS lists its style as Garden, with four or more stories.

55 Congress Street is in Portsmouth, New Hampshire 03801, in Rockingham County.

55 Congress Street in Portsmouth, NH sits on 0.2 acres, per the MLS.

The lot is described as city lot.

It has 75 feet of road frontage (public).

Zoning: CD5.

The MLS lists it as outside a flood zone.

The MLS notes covenants; review them in the deed and title work.

Annual property taxes on 55 Congress Street in Portsmouth, NH are $5,878 for the 2026 tax year, per the MLS.

New Hampshire towns set their own tax rates and revalue periodically, so confirm the current bill with the Portsmouth assessing office.

At $624,000, 55 Congress Street in Portsmouth, NH is priced below the $659,900 median asking price of the 69 condos for sale in Portsmouth on PrimeMLS as of November 3, 2026 (this listing included).

That figure is Owl's Nest Real Estate's analysis of active listings, and asking prices are not sale prices — ask us for recent comparable sales before you make an offer.

To see 55 Congress Street in Portsmouth, NH, use Request a Showing on this page or call Owl's Nest Real Estate at 401-648-5308.

We can show any MLS-listed home and represent you as your buyer's agent; the listing brokerage represents the seller.