25 South Mill St

Portsmouth, NH 03801
  • $1,850,000

    Price
  • 4

    Bed
  • 2

    Bath
  • 1,760

    SqFt

About the Listing 2130 - 13241

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. This thoughtfully designed two-family home presents a unique opportunity to own a versatile, income-generating 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 is currently vacant in order to make showing the property easier (most recently rented in 2025 for $2900/month), 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.

Listing Highlights

Status Active
Days on Site 40
Property Type Multi-Family
MLS ® 5073158
Year Built 2013
Total Square Footage 1,760
Lot/Acreage 0.12
County Rockingham
School District Portsmouth
Elementary School Little Harbor School
Middle School Portsmouth Middle School

Interior Details

  • Bedrooms: 4
  • Bathrooms: 2 Full
  • Appliances:
  • Air Cond:
  • Heating: Hot Water
  • Fireplaces:
  • Floor: Carpet,Wood
  • Above Ground Sq Ft: 1760
  • Below Ground Sq Ft: n/a
  • Basement: Yes,Unfinished
  • Other:
  • Water:

Exterior Details

  • Lot Description: Existing
  • Garage Capacity: 1 car
  • Zoning: GRB
  • Roof: Shingle
  • Others:
  • Sewer: Public

Financial Details

  • Tax Amount: $14,253
  • Taxes w/Assessments: $1,238,400
  • Tax/Property ID: N/A
  • Tax Year: 2025

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25 South Mill St Portsmouth, NH 03801

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