Recently Viewed Properties
See This Home
Save This Listing
Close

$1,700,000

  • Sold
  • Closed
  • Single Family
  • 3 Beds
  • 1 Full Bath
  • 2 Partial Baths
  • 1,659 Sq. Ft.
  • 0.13 Acres
See This Home
Save This Home
See This Home
Save This Home
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.

Full Property Details for 112 New Castle Ave

General

  • Sold For: $1,700,000
  • Taxes: $14,996 (2025)
  • Status: Closed
  • Type: Single Family
  • Source: PrimeMLS
  • MLS ID: 5096632
  • Added to Site: 57 day(s) ago

Interior

  • Number of Rooms: 7
  • Interior Features: Gas Fireplace, Kitchen Island, Skylight, 1st Floor Laundry
  • Fireplace: Yes
  • Appliances: Dishwasher, Dryer, Microwave, Electric Range, Refrigerator, Washer, Induction Cooktop
  • Flooring: Tile, Wood

Rooms

Bathrooms

  • Total Bathrooms: 3
  • Full Bathrooms: 1
  • 3/4 Bathrooms: 1
  • Half Bathrooms: 1
  • Bathroom 1: Bathroom Full, Level 2
  • Bathroom 2: Bathroom Half, Level 1

Bedrooms

  • Total Bedrooms: 3
  • Primary Suite: 10.5 x 12, Level 2
  • Bedroom 1: 9 x 12, Level 2
  • Bedroom 2: 10 x 14.5, Level 2

Other Rooms

  • Living Room: 13 x 20, Level 1
  • Kitchen: Kitchen, 12 x 13, Level 1
  • Dining Room: Dining Room, 12 x 15, Level 1
  • Sun Room/Solarium: 12 x 16, Level 1
  • Laundry: Level 1

Additional Information

  • Equipment: Irrigation System

Exterior

  • Exterior Features: Garden Space, Patio

Parking

  • Parking: Driveway, Paved

Location

  • County: Rockingham
  • Driving Directions: GPS works!

School Information

  • School District: Portsmouth
  • Elementary School: Little Harbor School
  • Middle School: Portsmouth Middle School
  • High School: Portsmouth High School

Heating & Cooling

  • Cooling Type: Mini Split
  • Heating Type: Electric, Heat Pump, Mini Split

Utilities

  • Sewer: Public

Structural Information

  • Construction Status: Existing
  • Basement Entrance: Interior
  • Basement Desc.: Bulkhead, Unfinished, Basement Stairs
  • Roof: Architectural Shingle
  • Stories/Levels: 2
  • Square Feet: 1,659
  • Finished Total: 1,659 Sq. Ft.
  • Finished Above Grnd: 1,659 Sq. Ft.
  • Year Built: 1860

Lot Features

  • Lot Size (Acres): 0.13
  • Lot Size (Sq. Ft.): 5,663
  • Frontage: TBD
  • Driveway/Sidewalk: Paved
  • Zoning: SRB

Financial Considerations

  • Price Per Sq. Ft.: $963.83
  • Assessment Year: 2025
  • Assessment Amount: $1,302,900
  • Tax Amount: $14,996
  • Tax Year: 2025

Disclosures and Reports

  • Lot Number: 28

Listed by Great Island Realty LLC, Sue Salehkhou
Sold by Tate & Foss Sotheby's International Rlty, John W. Rice

Listed by Great Island Realty LLC, Sue Salehkhou
Sold by Tate & Foss Sotheby's International Rlty, John W. Rice

Listing agent

— 112 New Castle Ave —

  • Sue Salehkhou

    Great Island Realty LLC

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 112 New Castle Ave

School District:Portsmouth School District, Portsmouth, NH
NameGradesDistance
Little Harbour School
50 Clough Drive, Portsmouth, NH 03801
K-50.2 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 112 New Castle Ave

Date
Details
Price
Change
Source
7/17/2026
Sold
$1,700,000
6.32%
MLS
6/25/2026
Listed
$1,599,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Listed by Great Island Realty LLC, Sue Salehkhou
Sold by Tate & Foss Sotheby's International Rlty, John W. Rice

Similar Properties near 112 New Castle Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

28 Walden St, Portsmouth, NH 03801 - Photo 1
$1,600,000

28 Walden St  Portsmouth, NH 03801

  • Single Family
  • Active
  • 2
    Beds
  • 3
    Total Baths
  • 1,315
    Sq. Ft.
Listed by LandVest, Inc./New Hampshire
114 Mechanic St, Portsmouth, NH 03801 - Photo 1
$1,785,000
Open House

114 Mechanic St  Portsmouth, NH 03801

  • Single Family
  • Active
  • Updated 7 days ago
  • 2
    Beds
  • 2
    Total Baths
  • 2,280
    Sq. Ft.
Listed by The Gove Group Real Estate, LLC
115 Court St, Portsmouth, NH 03801 - Photo 1
$1,895,000

115 Court St  Portsmouth, NH 03801

  • Single Family
  • Active
  • Updated 8 days ago
  • 4
    Beds
  • 3
    Total Baths
  • 2,273
    Sq. Ft.
Listed by www.HomeZu.com
Lot 4 Bergamot Fields, Portsmouth, NH 03801 - Photo 1
$1,570,000

Lot 4 Bergamot Fields  #4  Portsmouth, NH 03801

  • Single Family
  • Active
  • 3
    Beds
  • 3
    Total Baths
  • 2,159
    Sq. Ft.
Listed by The Gove Group Real Estate, LLC

Just Listed near 112 New Castle Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

13 Jones Ave, Kittery, ME 03904 - Photo 1 Just Listed
$775,000
Open House

13 Jones Ave  #13  Kittery, ME 03904

  • Condo
  • Active
  • Updated 11 hours ago
  • 3
    Beds
  • 3
    Total Baths
  • 1,815
    Sq. Ft.
Listed by Keller Williams Coastal and Lakes & Mountains Realty
35 Leach Rd, Kittery, ME 03904 - Photo 1 Just Listed
$724,900
Open House

35 Leach Rd  Kittery, ME 03904

  • Single Family
  • Active
  • Updated 2 days ago
  • 3
    Beds
  • 2
    Total Baths
  • 1,500
    Sq. Ft.
Listed by Keller Williams Coastal and Lakes & Mountains Realty
42 State Rd, Kittery, ME 03904 - Photo 1 Just Listed
$749,900

42 State Rd  #203  Kittery, ME 03904

  • Condo
  • Active
  • Updated 4 days ago
  • 3
    Beds
  • 3
    Total Baths
  • 1,850
    Sq. Ft.
Listed by Great Island Realty, LLC
11 Jones Ave, Kittery, ME 03904 - Photo 1 Just Listed
$475,000
Open House

11 Jones Ave  #11  Kittery, ME 03904

  • Condo
  • Active
  • Updated 11 hours ago
  • 1
    Bed
  • 2
    Total Baths
  • 622
    Sq. Ft.
Listed by Keller Williams Coastal and Lakes & Mountains Realty

Price Reduced near 112 New Castle Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

22 Trafton Ln, Kittery, ME 03904 - Photo 1 Price Reduced
-$50,000 (-3.33%)
$1,450,000

22 Trafton Ln  Kittery, ME 03904

  • Lots/Land
  • Active
  • Updated 2 days ago
  • 2.01
    Acres
Listed by Lisa Hughes (207) 294-2933
2 Creek Crossing, Kittery, ME 03904 - Photo 1 Price Reduced
-$35,000 (-5.12%)
$649,000

2 Creek Crossing  Kittery, ME 03904

  • Single Family
  • Active
  • Updated 7 hours ago
  • 3
    Beds
  • 2
    Total Baths
  • 2,348
    Sq. Ft.
Listed by Keller Williams Coastal and Lakes & Mountains Realty
53 Sandalwood Cir, Kittery, ME 03904 - Photo 1 Price Reduced
-$10,000 (-5.26%)
$180,000

53 Sandalwood Cir  Kittery, ME 03904

  • Mobile Home
  • Active
  • Updated 4 days ago
  • 3
    Beds
  • 2
    Total Baths
  • 1,104
    Sq. Ft.
Listed by Century 21 North East
72 Depot Rd, Greenland, NH 03840 - Photo 1 Price Reduced
-$55,000 (-3.14%)
$1,695,000
Open House

72 Depot Rd  Greenland, NH 03840

  • Single Family
  • Active
  • Updated 12 hours ago
  • 4
    Beds
  • 5
    Total Baths
  • 5,200
    Sq. Ft.
Listed by Nancy Beveridge (603) 334-1900 and Lynn Russ (603) 793-9550

Recent Sales near 112 New Castle Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

244 New Castle Ave, Portsmouth, NH 03801 - Photo 1 Sold
$1,500,000

244 New Castle Ave  Portsmouth, NH 03801

  • Single Family
  • Closed
  • 2
    Beds
  • 2
    Total Baths
  • 1,296
    Sq. Ft.
Listed by Gibson Sotheby's International Realty
Sold by RE/MAX Shoreline
4 Island Ave, Kittery, ME 03904 - Photo 1 Sold
$1,645,000

4 Island Ave  #5  Kittery, ME 03904

  • Townhouse
  • Closed
  • 2
    Beds
  • 3
    Total Baths
  • 2,174
    Sq. Ft.
Listed by Keller Williams Coastal and Lakes & Mountains Realty
Sold by Non MREIS Agency
18 Congress Street, Portsmouth, NH 03801 - Photo 1 Sold
$1,515,000

18 Congress Street  #304  Portsmouth, NH 03801

  • Condo
  • Closed
  • 2
    Beds
  • 2
    Total Baths
  • 1,482
    Sq. Ft.
Listed by The Aland Realty Group
Sold by KW Coastal and Lakes & Mountains Realty
175 Wibird St, Portsmouth, NH 03801 - Photo 1 Sold
$1,945,000

175 Wibird St  Portsmouth, NH 03801

  • Single Family
  • Closed
  • 3
    Beds
  • 3
    Total Baths
  • 1,915
    Sq. Ft.
Listed by Samonas Realty, LLC
Sold by The Aland Realty Group

112 New Castle Avenue, Portsmouth, NH 03801 (MLS# 5096632) is a Single Family property that was sold at $1,700,000 on July 17, 2026. Want to learn more about 112 New Castle Avenue? Do you have questions about finding other Single Family real estate for sale in Portsmouth? You can browse all Portsmouth real estate or contact a Coldwell Banker agent to request more information.