20 Porter Street, Portsmouth, NH

20 Porter Street in Portsmouth, NH is listed for $2,775,000 on PrimeMLS.

That is about $1,035 per square foot of finished living space.

It came on the market on September 25, 2026.

20 Porter Street in Portsmouth, NH has 3 bedrooms and 3 bathrooms (2 full and 1 half) in 2,682 square feet of finished living space.

Counting 370 finished square feet below grade, the MLS lists 3,052 finished square feet in total.

Yes. 20 Porter Street in Portsmouth, NH has a basement with walkout access, including 370 finished square feet.

The MLS describes it as climate controlled, daylight, finished, insulated, partially finished, interior entry, interior stairs and storage space.

Inside, the MLS lists these features at 20 Porter Street in Portsmouth, NH: dining area, primary BR w/ BA, natural light, skylight, walk-in closet(s) and 2nd floor laundry.

Outside: balcony and covered porch.

Flooring: hardwood and tile.

Listed appliances: dishwasher, microwave, gas range and refrigerator; confirm which ones convey in the purchase agreement.

20 Porter Street in Portsmouth, NH has a 1-car garage and a common/shared and paved driveway.

Parking details: assigned, attached, auto open, direct access, driveway and heated garage.

The MLS places 20 Porter Street in Portsmouth, NH in the Portsmouth school district.

Listed schools: Little Harbor School (elementary), Portsmouth Middle School (middle) and Portsmouth (high).

School assignments can change; confirm with the district.

Yes. 20 Porter Street in Portsmouth, NH is listed as Active on PrimeMLS (MLS #5111615).

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

20 Porter Street in Portsmouth, NH is listed by Natasha L Driscoll of Compass New England, LLC (603-319-4660).

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

20 Porter Street in Portsmouth, NH is a condominium built in 2003.

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

20 Porter Street is in Portsmouth, New Hampshire 03801, in Rockingham County.

Location notes from the MLS: in town, near country club, near golf course, near paths, near shopping and near public transit.

Annual property taxes on 20 Porter Street in Portsmouth, NH are $16,602 for the 2025 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.

The association fee for 20 Porter Street in Portsmouth, NH is $1,275 (monthly), per the MLS.

The MLS lists the fee as covering landscaping and plowing.

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

20 Porter Street in Portsmouth, NH is heated by natural gas and zoned, per the MLS.

Cooling: central air.

20 Porter Street in Portsmouth, NH has public water and public sewer, per the MLS.

MLS details — water: public; sewer: public.

Electric: 200+ amp service.

Other utilities: underground utilities.

At $2,775,000, 20 Porter Street in Portsmouth, NH is priced above 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 20 Porter 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.