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40 Congress Street, Portsmouth, NH 03801

NH-Rockingham County

Key Facts

22,601Sq Ft
1878Year Built

Description

Located in the heart of downtown Portsmouth, 40 Congress Street offers a rare opportunity to own a boutique commercial asset in one of New England’s most dynamic and historic markets. The 22,601± SF property sits on a 0.09± acre parcel and is zoned CD5 (Character District 5), allowing for a variety of commercial, office, and mixed-use uses including a possible residential conversion on the upper floors. Positioned within Portsmouth’s vibrant Downtown Historic District and just steps from Market Square, the property benefits from exceptional walkability, strong surrounding demographics, and limited supply. 40 Congress Street offers a well-located asset with versatile use potential and strong long-term value. For more information, a signed NDA is required.

Property Information

Property Type

Commercial Sale

Sub-Type

Office

Year Built

1878

Living Area

22,601 sq ft

Zoning

CD5

MLS® Listing#

5084657

Property Features

Basement

FinishedWalk-Up Access

Utilities

Natural Gas Available

Sewer

Public Sewer

Water Source

Public

Affordability Calculator

$2,500,000

Estimated monthly payment

$66,530/mo

Principal $10,000,000 · Est. interest $13,950,890 over 30 yrs

Neighborhood Market Statistics

How this home compares to active listings in Portsmouth, NH

$784,375
Median Listing Price
83
Median Days on Market
1,430
Median Sq Ft
$624
Median Price / Sq Ft
183
Active Listings
  • This home’s price is 1494% above the area median.
  • Its price per sq ft is 11% below the area median.

Market statistics compiled from active EXIT Realty® and MLS listings in Portsmouth, NH.

Location

Map showing the location of 40 Congress Street, Portsmouth, NH 03801

Points of Interest in Portsmouth, NH

Showing the Portsmouth area map.

Nearby Schools

  • The Treehouse School of Portsmouth

    School · 0.2 mi away

  • Portsmouth Middle School

    Secondary · 0.2 mi away

  • St Patrick School

    School · 0.4 mi away

  • Little Harbour School

    Elementary · 0.7 mi away

  • New Franklin School

    Elementary · 0.9 mi away

  • Adventure Learning

    School · 0.9 mi away

  • Kittery Adult Education Program

    School · 1.2 mi away

  • Portsmouth High School

    Secondary · 1.2 mi away

  • Maude H. Trefethen School

    Elementary · 1.9 mi away

  • Kittery Superintendent-Schools

    School · 1.9 mi away

  • Portsmouth Alternative School

    Secondary · 2.4 mi away

  • Mary C. Dondero Elementary School

    Elementary · 2.7 mi away

  • Peep Center-Community Campus

    School · 2.7 mi away

  • Shapleigh School

    Secondary · 2.7 mi away

  • Horace Mitchell Primary School

    Elementary · 3.0 mi away

  • Champions at Horace Mitchell Primary School

    Elementary · 3.0 mi away

  • Rye Elementary School

    Elementary · 3.3 mi away

  • Eliot Elementary School

    Elementary · 3.6 mi away

  • Newington Public School

    Elementary · 4.1 mi away

  • Rye Junior High School

    Secondary · 4.3 mi away

Commute Calculator

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EXIT Agents in Portsmouth

The data relating to real estate for sale on this web site comes in part from the Internet Data Exchange (IDX) program of one or more Multiple Listing Services (MLS). Listing information is deemed reliable but is not guaranteed accurate. Copyright © EXIT Realty® and respective MLS providers.

Data provided by NEREN. MLS® Listing#5084657. © 2026EXIT Realty®. All rights reserved.