About this home
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 finished attic, with its exposed beams and wide pine floors, provides a most inviting retreat. Originally home to the famous Capt. John Blunt, it became home to Leonard Cotton, a well known West Indies trade merchant. This historic property has served as law offices for forty years. It is anticipated that because of its flexible layout and phenomenal location it will be restored to its original prominence, as one of the city’s more distinguished residences. The Leonard Cotton House is not merely a piece of real estate; it is part of Portsmouth's legacy, awaiting its next steward.
Listing last checked: Listing updated:
Listed by Wayne Semprini, Tiffany Semprini · The Aland Realty Group · MLS #5072206
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Details at a glance
Interior5 property facts
- Rooms
- 10
- Heating
- Baseboard, Hot Water, Natural Gas
- Cooling
- None
- Flooring
- Wood
- Basement
- Yes · Basement Stairs, Concrete Floor, Full, Storage Space, Unfinished
Building4 property facts
- Style
- Single Family Residence
- Year built
- 1747
- Foundation
- Stone
- Roof
- Wood
Land & utilities6 property facts
- Lot size
- 0.25 acres
- Water
- Public
- Sewer
- Public Sewer
- Waterfront
- Y
- Pool
- Not reported
- Zoning
- MRO
Financial2 property facts
- Annual taxes
- $16,938
- Assessment year
- 2025
Location
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Estimated monthly cost
Explore costs at the $3,300,000 asking price. Adjust the assumptions to your situation.
Known monthly costs$18,098 / monthAdjust
- Principal & interest
- $16,687
- Property tax
- $1,412
- Insurance
- Not entered
- HOA
- Not entered
Listing annual taxes: $16,938. Initial monthly tax is one twelfth of that amount. HOA amount was not supplied.
Partial estimate: add insurance, monthly HOA to include those costs. Blank amounts are unknown.
The initial 6.5% rate is illustrative, not a current rate or lender quote. Excludes utilities, maintenance, closing costs and mortgage insurance, which may apply with a down payment below 20%. Taxes and insurance can change.
Price and status timeline
- Sc
$3,300,000 · Dec 15, 2025
More property insights
Photo-based condition insights
Overall presentation: average
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About 144 Washington Street
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