Welcome to 25 South Mill Street — a rare offering of newer construction (built in 2013) located on the waterfront in one of Portsmouth’s most sought-after neighborhoods. Currently set up as a 2 family home this would be a fairly straight forward conversion to a true single family property in a premier location. Each of the two units features 2 bedrooms, 1 full bath, and in-unit laundry, offering comfortable, modern living with a coastal flair. The upper unit enjoys elevated views and higher ceilings, maximizing light and enhancing the stunning water vistas. Outdoors, you'll find no shortage of parking with a deep, oversized garage (approx. 14' x 26') and a driveway that accommodates 6+ vehicles — an exceptional amenity for South End living. With flexible use options, this property is ideal for an owner-occupant looking to offset their costs with rental income, investors seeking a premium location asset, or those envisioning a condo conversion or conversion to a single-family residence. The upper unit will be vacant by end of July 2025, while the lower unit is leased through April 2026, providing both immediate flexibility and reliable income. Don’t miss this exceptional opportunity in the heart of the South End — just a short stroll to downtown Portsmouth, Prescott Park, and the city’s vibrant waterfront scene.
Active
Listed by:
Emil Uliano,
Great Island Realty LLC 603-433-3350
$2,100,000
25 South Mill Street, Portsmouth, NH 03801
4beds
1,760sqft
Est.:
Single Family Residence
Built in 2013
5,227.2 Square Feet Lot
$-- Zestimate®
$1,193/sqft
$-- HOA
What's special
Elevated viewsOversized garageIn-unit laundryStunning water vistasHigher ceilings
- 36 days
- on Zillow |
- 1,898 |
- 20 |
Zillow last checked: 7 hours ago
Listing updated: August 11, 2025 at 06:33am
Listed by:
Emil Uliano,
Great Island Realty LLC 603-433-3350
Source: PrimeMLS,MLS#: 5050213

Travel times
Tour with a buyer's agent
Tour with a buyer's agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 2
- Full bathrooms: 2
Heating
- Hot Water
Cooling
- None
Appliances
- Included: Dryer, Microwave, Refrigerator, Washer, Gas Stove
Features
- Flooring: Carpet, Wood
- Basement: Unfinished,Interior Entry
Interior area
- Total structure area: 1,760
- Total interior livable area: 1,760 sqft
- Finished area above ground: 1,760
- Finished area below ground: 0
Property
Parking
- Total spaces: 1
- Parking features: Paved, Driveway
- Garage spaces: 1
- Has uncovered spaces: Yes
Features
- Levels: Two
- Stories: 2
Lot
- Size: 5,227.2 Square Feet
- Features: City Lot
Details
- Parcel number: PRSMM0102B0016L
- Zoning description: GRB
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence
Materials
- Wood Frame, Clapboard Exterior
- Foundation: Brick
- Roof: Shingle
Condition
- New construction: No
- Year built: 2013
Utilities & green energy
- Electric: Circuit Breakers
- Sewer: Public Sewer
- Utilities for property: Propane
Community & HOA
Location
- Region: Portsmouth
Financial & listing details
- Price per square foot: $1,193/sqft
- Tax assessed value: $1,238,400
- Annual tax amount: $13,845
- Date on market: 7/7/2025
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