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144 Washington Street, Portsmouth, NH

Commercial Sale

For SaleActive
0 Beds|0 Baths|Built 1747|Portsmouth

Listed by The Aland Realty Group · Wayne Semprini

Property Description

For over two centuries, the Leonard Cotton House, a Portsmouth landmark, has stood as a centerpiece of Portsmouth’s historic Puddle Dock area. This Federal-style residence offers sweeping views across Strawberry Banke Historic Museum, Prescott Park, and the Piscataqua River. As one of the largest privately owned parcels in Portsmouth’s popular South End, it features off-street parking with room to construct a garage or carriage house. Situated on the corner of Hancock and Washington Streets, this property is a five-minute walk from Portsmouth’s cultural epicenter, Market Square. Genuine moldings, original eight panel doors, and distinctive dental moldings throughout, reflect the architectural grace of the mid-18th century. The third floor, with its exposed beams and wide pine floors, provides a most inviting private office. This historic property has served as law offices for over forty years and is currently configured as professional offices. It will serve equally well for any business seeking immediate prestige in a central Portsmouth location. The Leonard Cotton House is not merely a piece of real estate; it is part of Portsmouth's legacy, awaiting its next steward.

Property Details

Essentials & finishes

  • Bedrooms:0
  • Total Baths:0
  • Property Type:Commercial Sale
  • Year Built:1747
  • County:NH-Rockingham
  • Town:Portsmouth, NH
  • Status:Active
  • Days on Market:206

Primary Features

CountyNH-Rockingham
Property TypeCommercial Sale
Year Built1747
ZoningMRO

Interior Features

BasementYes
Basement Access TypeInterior
Basement DescriptionConcrete Floor, Full, Interior Stairs, Unfinished
ElectricCircuit Breakers
HeatingBaseboard, Hot Water, Zoned, Natural Gas

Financial Details

Foreclosed / Bank-Owned / REONo
Sale IncludesBuilding, Land/Building
Tax - Gross Amount$16,937

Additional

ConstructionWood Frame, Wood Exterior, Wood Siding
CovenantsYes
EasementsUnknown
Flood ZoneUnknown
Pre-ConstructionNo
SeasonalNo
SurveyedUnknown

External Features

FoundationGranite, Stone
Lot FeaturesNear Shopping, Near Public Transportatn, Corner Lot, Curbing, Landscaped, Sidewalks, Street Lights, Views, Water View
Lot - Acres0.25
Lot - SqFt10,890
ParkingParking Spaces 6+
Road FrontageYes
RoofWood
SewerPublic Sewer
UtilitiesCable, Cable Connected, Gas On-Site
Water SourcePublic
Water Body TypeRiver
MLS®: PrimeMLS #5072167; Listed by The Aland Realty Group · Wayne Semprini

Property History

Price, listing activity & annual taxes for this property

No sales history available.

Market Data

Live snapshot computed from active listings in this town

  • Active listings in Portsmouth199
  • Average list price$1,657,702
  • Price range$26 – $4,250,000
  • Market sentimentBuyer's Market

Mortgage Calculator

Estimate your monthly payment for this home

20%
Loan Term
6.5%
Estimated monthly payment$22,049 / mo
  • Principal & Interest$16,687
  • Property Tax$4,675
  • Home Insurance$688

Estimates use typical New Hampshire costs — a 1.7% effective property-tax rate, insurance at 0.25% of home value/yr, and PMI below 20% down. Actual town tax rates vary; verify with your lender and the town assessor.

$3,300,000/ Asking Price
For SaleActive
Est. $16,687 / mo20% down · 30yr · 6.5%
Tom DeMatteo

Tom DeMatteo

Owl’s Nest Real Estate · Questions?

401-648-5308

Market Sentiment

Buyer's Market
Buyer’s MarketBalancedSeller’s Market

Based on 199 active · 0 sold in Portsmouth (last 90 days)

PrimeMLS

NOTE: This representation is based in whole or in part on data generated by PrimeMLS, Inc., which assumes no responsibility for its accuracy. The data relating to real estate displayed on this site comes in part from the IDX Program of PrimeMLS.

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Owl's Nest Real Estate

Copyright 2026 PrimeMLS, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site comes in part from the IDX Program of PrimeMLS. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This display of listings may or may not be the entire Compilation from the PrimeMLS database, and PrimeMLS does not guarantee the accuracy of such information. The listing broker's offer of compensation is made only to other real estate licensees who are participant members of the PrimeMLS.

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