Historic Office
For Sale
$3,300,000
144 Washington Street, Portsmouth, NH 03801
Commercial Sale, Portsmouth, NH
Property SizeContact for details
Lot Size0.25 Acres
Days on Market250
Property Features for 144 Washington Street
General Information
Property type
Commercial Sale
Property subtype
Other
Zoning
MRO
Rooms
Basement
Lot features
Near Shopping, Near Public Transport, Corner, Curbing, Landscaped, Sidewalks, Street Lights, View
Standard status
Active
Lot size
0.25 Acres
Taxes and HOA fees
Tax Annual Amount
16937
Utilities
Heating system
Hot Water(Heating), Baseboard, Natural Gas
Water source
Public
Amenities
sweeping views
Building Details
Year built
1747
Building materials
Wood Frame, Wood Exterior, Wood Siding
Roof type
Wood
Listing Agency:
The Aland Realty Group
(603) 501-0463
Listed By:
Wayne Semprini
(207) 251-4762
Added: Dec 15, 2025
Changed: Aug 20
Last Checked: Aug 22 at 5:06PM
MLS# 5072167
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.
The Leonard Cotton House is a Federal-style office property dating to 1747 and currently arranged for professional office use. Original architectural elements include genuine moldings, eight-panel doors, dental molding, exposed beams, and wide pine floors. A private office occupies the third floor, while the property also includes a basement, wood-frame construction, wood siding, a wood roof, hot-water baseboard heating, and natural gas service.
Positioned at the corner of Hancock and Washington Streets in Portsmouth’s South End, the property overlooks Strawberry Banke Historic Museum, Prescott Park, and the Piscataqua River. Market Square is described as a five-minute walk away. The 0.25-acre parcel includes off-street parking and space identified for construction of a garage or carriage house. Public water service is in place, and the property is zoned MRO.
Positioned at the corner of Hancock and Washington Streets in Portsmouth’s South End, the property overlooks Strawberry Banke Historic Museum, Prescott Park, and the Piscataqua River. Market Square is described as a five-minute walk away. The 0.25-acre parcel includes off-street parking and space identified for construction of a garage or carriage house. Public water service is in place, and the property is zoned MRO.
Key Highlights
- 1747 Federal‑style office property with original architectural details
- 0.25‑acre parcel at Hancock and Washington Streets in Portsmouth
- Professional office configuration with a private third‑floor office
Property Analytics
Property Profile
Current Use
Lease Details
Yes
Paved road access
Location Intelligence
Trade Area within ½ mile
2,258
Businesses Nearby
Explore this area
Business Placement
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
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Office building - Federal-style professional office property with period details, public water, and off-street parking in Portsmouth’s South End.
Where is this office building located?
The property is located at 144 Washington Street Portsmouth, NH.
What is the asking price?
The asking price for this property is $3,300,000.
What are key features of this property?
This property features: 1747 Federal‑style office property with original architectural details; 0.25‑acre parcel at Hancock and Washington Streets in Portsmouth; Professional office configuration with a private third‑floor office
