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Third-Floor Walk-Up Office Suite
For Sale
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159 Middle Street, Portsmouth, NH 03801

COMMERCIAL - Portsmouth, NH

Property SizeContact for details
Days on Market188

Property Features for 159 Middle Street

General Information

Property type Commercial Sale
Property subtype Other
Zoning Business
Standard status Active

Utilities

Sewer type Public Sewer
Water source Public

Amenities

kitchenette area

Building Details

Year built 1850
Listing Agency: Samonas Realty, LLC
Listed By: John Samonas
Added: Feb 5 Changed: Aug 4 Last Checked: Aug 12 at 2:06PM
MLS# 5075877

Copyright © 2026 PrimeMLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

Third-floor walk-up office suite at 159 Middle Street in Portsmouth, New Hampshire. The space includes a kitchenette area and comes with heat, electric, and cleaning of common areas, along with parking. The building is described as a classic Portsmouth structure with authentic woodwork and trim features, and it’s currently occupied by a professional mix including attorneys, therapists, and physicians.

The property is located downtown Portsmouth and is presented as being within walking distance to area activities. Water and sewer service are provided by public systems.

Built in 1850, the building offers period architectural character while providing practical included services for day-to-day operations. The zoning is listed as Business.

Key Highlights

  • Third‑floor walk‑up office suite with kitchenette area
  • Heat and electric included
  • Cleaning of common areas included

Property Analytics

Current Use

Mintleaf Marketing Advertising Agency Upton & Hatfield, LLP Law Firm

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Locksmith Food Market Pet Grooming Service Pharmacy Grocery & Convenience Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

2,267
Businesses Nearby

Demographics for 03801, NH

22,767
Population
11,448
Households
2
Avg Household Size
43
Median Age
63%
College-Educated
98%
High-School Grad
23.8 sq mi
ZIP Area
957
Density / Sq Mi
$106,520
Median Household Income
$65,984
Median Earnings
$1,783
Median Rent
$647,500
Median Home Value

Market

Vacancy Rate% for Office in Northeast region

13.1% 2019
15.4% 2020
17.6% 2021
19.1% 2022
20.2% 2023
20.9% 2024
19.9% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Office units - Third-floor walk-up office suite with kitchenette area, plus parking and utilities/common-area cleaning included.
Where is this office units located?
The property is located at 159 Middle Street Portsmouth, NH.
What are key features of this property?
This property features: Third‑floor walk‑up office suite with kitchenette area; Heat and electric included; Cleaning of common areas included
More about this property
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