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28 Walden Street, Portsmouth, NH, 03801

2beds
3baths
1,315sqft
$1,600,000
$1,217price/sqft
$10,047/moest. monthly cost
$401,880/yrincome needed

About This Home

Direct tidal waterfront just minutes from downtown Portsmouth is an extraordinary rarity, and this beautifully restored c.1810 home with a detached legal accessory dwelling unit (ADU) offers the opportunity to enjoy both, blending historic New England character with thoughtful modern updates in an exceptional waterfront setting. Designed to embrace its surroundings, the home captures sweeping water views and spectacular sunrises through windows on three sides. The custom cook's kitchen with handcrafted cabinetry opens to an inviting living area where a wall of glass frames the ever-changing waterfront landscape. Gentle ocean breezes and abundant natural light create a comfortable atmosphere throughout the seasons. Outside, a climbing hydrangea arbor welcomes you to a private brick patio and beautifully established gardens overlooking the water. It's an ideal setting for morning coffee, afternoon gatherings, or simply enjoying the peaceful shoreline. Launch a kayak or paddleboard directly from your backyard and explore the protected cove, home to a variety of coastal birds and marine life. The detached legal ADU offers exceptional flexibility as a guest house, private office, or income-producing rental. Filled with natural light, it features a vaulted ceiling, dramatic floor-to-ceiling window, loft sleeping area, full kitchen and bath, and a cozy gas fireplace. Located on a quiet dead-end street, yet only minutes from Portsmouth's celebrated restaurants, boutiques, galleries, The Music Hall, Prescott Park, Strawbery Banke Museum, and the city's vibrant waterfront, the property offers the perfect balance of peaceful waterfront living with proximity to amenities. A mahogany entry deck overlooks the granite cobblestone driveway with parking for three vehicles. A distinctive Seacoast property where historic charm, modern comfort, and waterfront living come together. Total square footage includes the detached legal ADU.

Getting Around

70
WalkingVery Walkable
0
TransitVery Limited Transit
73
BikeVery Bikeable

Schools

10/10
Little Harbour SchoolGrades K-50.3 mi
8/10
Portsmouth Middle SchoolGrades 6-80.6 mi
10/10
Portsmouth High SchoolGrades 9-121.2 mi

Construction

Condition

  • Year built: 1811

Materials

  • Foundation: Brick,Poured Concrete,Stone
  • Roof: Asphalt Shingle
  • Construction materials: Clapboard Exterior

Type & Style

  • Home type: SingleFamily
  • Architectural style: Antique,New Englander
  • Property subType: Apartment

Interior

Appliances

  • Appliances included: Dishwasher,Disposal,Dryer,Range Hood,Microwave,Refrigerator,Washer,Water Heater off Boiler,Induction Cooktop
  • Laundry features: 1st Floor Laundry

Basement

  • Has basement: Yes
  • Basement: Bulkhead,Concrete,Concrete Floor,Exterior Stairs,Storage Space,Sump Pump,Unfinished,Walk-Up Access

Bedrooms & Bathrooms

  • Bedrooms: 2
  • Bathrooms: 3
  • 3/4 bathrooms: 2
  • 1/2 bathrooms: 1

Features

  • Cathedral Ceiling(s),In-Law/ADU,Kitchen/Living,Natural Light,Natural Woodwork,Wired for Sound
  • Window features: Skylight(s)
  • Flooring: Carpet,Hardwood,Tile
  • Finished area below ground: 0
  • Finished area above ground: 1,315

Heating & Cooling

  • Heating features: Natural Gas,Baseboard,Electric,Hot Water,Radiant Electric,Mini Split
  • Cooling features: Mini Split

Interior Area

  • Total structure area: 1,891
  • Total interior livable area: 1,315 sqft

Property

Details

  • Parcel number: PRSMM0101B0019L
  • Zoning description: GRB

Features

  • Levels: 1.75
  • Stories: 1
  • Patio & porch: Patio,Porch
  • Exterior features: Garden,Storage
  • Fencing: Partial
  • Has view: Yes
  • View description: Water
  • Has water view: Yes
  • Water view: Water
  • On waterfront: Yes
  • Waterfront features: Wetlands,Tidal
  • Waterbody name: Piscataqua River
  • Frontage length: Road frontage: 34

Lot

  • Lot size: 3,049 sqft
  • Features: Landscaped,Level,Neighborhood

Parking

  • Total spaces: 3
  • Parking features: Brick/Pavers,Off Street,Parking Spaces 3

Climate Risk is Financial Risk

Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.

Biggest Threats for This Home

  • Coastal Flooding
    Coastal FloodingRelatively High
  • Ice Storm
    Ice StormRelatively High
  • Earthquake
    EarthquakeModerate
  • Inland Flooding
    Inland FloodingModerate
  • Tsunami
    TsunamiInsufficient Data

How This Home’s Risks Compare

Coastal Flooding
Ice Storm
Earthquake
Inland Flooding
Tsunami

FEMA Declared Disasters Across New Hampshire Counties

Flood
Severe Storm
Snowstorm
Winter Storm

Understanding the Costs

Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.

Estimated Costs Today

MonthlyAnnual
Mortgage $8,090$97,080
Home Insurance $275$3,300
Property Taxes $1,399$16,788
Electricity $283$3,398
Total$10,047$120,564

Income You'd Need if You Spent...

35% on housing$344,468/yr
40% on housing$301,410/yr
45% on housing$267,920/yr

How Costs Could Change Over Time

Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.

Insurance Growth Rate5-year average: 12.2%
12.2%
0%30.0%
Electricity Growth Rate10-year average: 8.6%
8.6%
0%15.0%
Property Taxes Growth Rate2-year average: 1.2%
1.2%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

$1,217This listing

vs Other Active Listings

Avg $/sqft

ZIP 03801$491
Rockingham County$348

vs Homes Sold Last Month

Median $/sqft

ZIP 03801$547
Rockingham County$328

Current Market Trends

Median Price Per Square Foot

The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.

Historicals for This Listing

Zestimate History ($/sqft)

Price History

DateEventPrice
2026-08-01Listed for sale$1,600,000
2024-07-22Sold$1,400,000
2024-07-16Contingent$1,298,000
2024-07-02Price change$1,298,000
2024-06-13Listed for sale$1,389,900
1999-04-16Sold$290,000
1997-06-25Sold$245,000

For Sale by Agent

AgentKristin Claire
BrokerageLandVest, Inc./New Hampshire

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