112 New Castle Avenue Portsmouth, NH $ 1,599,000
112 New Castle Avenue
$ 1,599,000
Recently Listed
Open House 6/27 10am - 1pm
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112 New Castle Avenue

Portsmouth, NH, 03801
$ 1,599,000
Bedrooms3 Baths2.1 Sq 1,659

Monthly Estimate*

$ 10,096

Listed by Sue Salehkhou, Great Island Realty LLC, 603-674-6283, sue.salehkhou@comcast.net
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Single Family Home for sale in Portsmouth, NH

for $1,599,000 with 3 bedrooms and 2 full baths, 1 half bath. This 1,659 square foot home was built in 1860 on a lot size of 0.13.

Timeless New England architecture meets sophisticated modern design in this beautifully restored antique Little Harbor residence on highly sought-after New Castle Avenue in Portsmouth. Completely renovated from top to bottom, this exceptional 3-bedroom, 2.5-bath home offers thoughtfully designed living space with premium finishes throughout. The heart of the home is a stunning custom kitchen featuring beautiful cabinetry, quartz countertops and island with plenty of guest seating, and stainless appliances to include the induction range. The main level offers a welcoming front foyer with antique hall tree, an inviting living room complete with gas fireplace, a spacious dining room, and the sun filled family room overlooking the well landscaped backyard as well as a separate laundry room and guest bathroom. Upstairs offers the main bedroom with its own private bathroom with custom tiled shower, 2 additional guest bedrooms and a fully renovated guest bathroom complete with custom tub and shower and double sinks. Every major system has been upgraded, providing peace of mind for years to come, including all-new electrical, plumbing, HVAC, and a new roof. Outside, enjoy the well landscaped backyard with a brick patio area perfect for relaxing or entertaining family and friends. Ideally located just minutes from downtown Portsmouth's vibrant restaurants, boutiques, waterfront, and cultural attractions, this turnkey property offers the rare opportunity to own a fully renovated antique home in one of the Seacoast's most desirable locations. Historic charm, exceptional craftsmanship, and modern luxury come together in this truly special offering. Open House Saturday June 27 from 10am-1pm.

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Open House

6/27/2026 10:00 AM - 1:00 PM
112 New Castle Avenue Portsmouth, NH
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 1,599,000

Bedrooms

3

Full Bath

2

Half Bath

1

Property Type

Single Family

Taxes

$ 0

Style

Antique,New Englander

Lot Size

0.13

Year Built

1860

Town/City

Portsmouth

County/Region

Rockingham

MLS | Web ID

5096632

Features
Interior
Basement Description Bulkhead Unfinished Basement Stairs
Interior Amenities Gas Fireplace Kitchen Island Skylight 1st Floor Laundry
Basement Yes
Flooring Tile Wood
Beds 3
Total Rooms 7
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General
Road Frontage TBD
Sewer Public
Heating Electric Heat Pump Mini Split
Cooling Mini Split
Utilities Gas On-Site
Roof Architectural Shingle
Appliances Dishwasher Dryer Microwave Electric Range Refrigerator Washer Induction Cooktop
Garage No
Flood Zone No
Zoning SRB
Exclusions Bench in LR bookcase in sunroom kitchen stools all outdoor furniture 3rd bedroom furniture all curtains
3/4 Baths 1
Full Baths 1
Half Baths 1
Bathrooms 3
Year Built 1860
Electric 200+ Amp Service Circuit Breaker(s)
Style Antique New Englander
Stories Count 2
Construction Status Existing
Tax Rate 11.51
Type Single Family
Block 0000
Assessment Amount 1302900
Auction No
Tax Year 2025
Status Detail 0
Covenants Unknown
Construction Materials Wood Exterior
Directions GPS works!
High School Portsmouth High School
City Portsmouth
Other Equipment Irrigation System
School District Portsmouth
Seasonal No
Elementary School Little Harbor School
Middle School Portsmouth Middle School
DOM 1
Price Per Sq Ft Total AG 963.83
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Exterior
Lot Features Landscaped Level Water View In Town Near Shopping Near School(s)
Exterior Amenities Garden Space Patio
Driveway Paved
Lot Size Area 0.13
Water Source Public
Parking Features Driveway Paved
Foundation Brick Concrete Stone
Lot 28
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* Excluded Features
List By
Sue Salehkhou

Listing Agent

Great Island Realty Llc

Broker

(603) 674-6283

Phone

sue.salehkhou@comcast.net

Email

Affordability Calculator

$10,096
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Monthly Principal & Interest
$10,096
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Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
1782400 Elementary School
451608 Middle School
Portsmouth High School High School
Pricing History
DatePricePrice ChangeDescription
6/25/2026$1,599,000 Listed Price

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112 New Castle Avenue, Portsmouth, NH, 03801 is a Single Family Home for sale at $1,599,000 with 1,659 sqft and a lot size of 0.13. 112 New Castle Avenue has 3 bedrooms, 2.1 baths, and was built in 1860. The property's zip code is 03801 which is in Portsmouth, NH