Google street view image for 21 Little Harbor Rd, New Castle, NH 03854

Off market dec 2017 for $1.2M

$3,041,738

Est. refi paymentEst. refi $8,091/mo

•

4 ba

•

4,512

sq ft

21 Little Harbor Rd, New Castle, NH 03854

About this home

21 Little Harbor Rd is a 4,512 square foot house on a 0.5 acre lot with 4 bedrooms and 4 bathrooms. - it last sold on December 15, 2017 for $1,250,000. Based on Redfin's New Castle data, we estimate the home's value is $3,041,738.

Single-familyProperty Type

1996Year Built

0.5 acresLot Size

$674Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$3,041,738

$1.8M since sold in December 2017$14K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.3% lower than the average sale price ($3.18M) of 6 comparable homes.

SOLD SEP 4, 2026
$3,500,000
A
4 beds3.5 baths4,000 sq ft
97 Abigale Ln, New Castle, NH 03854
SOLD JUL 20, 2026
$3,335,000
B
4 beds4.5 baths3,734 sq ft
65 Little Harbor Rd, New Castle, NH 03854
SOLD AUG 28, 2026
$1,612,500
C
4 beds3.5 baths4,195 sq ft
7 Shaw Rd, Portsmouth, NH 03801
SOLD AUG 21, 2026
$2,425,000
D
3 beds3.5 baths3,189 sq ft
56 Old Bay Rd, New Castle, NH 03854
SOLD MAR 17, 2026
$3,100,000
E
4 beds4 baths3,057 sq ft
17 Lavenger Ln, New Castle, NH 03854
SOLD OCT 29, 2026
$5,100,000
F
4 beds3 baths3,049 sq ft
395 Little Harbor Rd, Portsmouth, NH 03801

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Earn from this home

Sell

$2,051,057

Est. take-home

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Est. cash available

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Rent

$4,308/mo

Redfin rental estimate

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Market trends in 03854, NH

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.2%

1.4% MoM

Median sale price

$3.3M

$67K MoM

Avg. days on market

74d

3 days MoM

Recently sold homes

1 MoM

New listings for sale

COMING SOON
$3,995,000
5 beds5.5 baths6,238 sq ft
50 Abigale Ln, New Castle, NH 03854
See all

Provided by Redfin

Sale history for 21 Little Harbor Rd

Tax history for 21 Little Harbor Rd

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Property details

Interior

Bathroom Information
# of Full Baths: 4

Heating & Cooling
Heating Type: Forced Air

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Contemporary
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Property Information
Subdivision Name: LITTLE HBR/WENTWORTH/SEA PH I
Living Sq. Ft: 4,512
Gross Sq. Ft: 6,760
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 21,780
Legal Lot Number: 5
Municipality Name: NEW CASTLE TOWNN
Acres: 0.5
Zoning Code: PD PL
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 4.0
Sq. Ft.: 4,512
Stories: 2.0
Lot Size: 0.5 acres
Style: Single Family Residential
Year Built: 1996
Year Renovated: —
County: Rockingham County
APN: 4295963S

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

K - 12
Preschool & daycare

Maude H. Trefethen School

Public K-6 • Assigned • 0.6mi

Portsmouth Middle School

Public 6-8 • Assigned • 2.1mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

4/10 Heat Factor

7 days above 91° expected this year, 15 days in 30 years

6/10 Wind Factor

72% chance of strong winds in next 30 years

2/10 Air Factor

1 unhealthy days expected this year, 2 days in 30 years

Provided by First Street

Historical weather

New Castle, NH • 03854

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

Estimated sale price

$2.89M – $3.50M

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Nearby similar homes

$900,000

1 bed2 baths1,072 sq ft

82 Brewster St, Portsmouth, NH 03801

Bungalow style home • Landscaped yard • Storage shed

$500,000

4 beds1.5 baths1,400 sq ft

1 Halstead St, Kittery, ME 03904

Corner lot • Farmers market • 4,356 sq ft lot

$539,000

4 beds1 bath1,656 sq ft

39 Williams Ave, Kittery, ME 03904

Generous backyard • Outdoor entertaining • Exceptional location

$35,000,000

6 beds8 baths13,451 sq ft

518 New Castle Ave, Portsmouth, NH 03801

Waterfront acres • Newly added balcony • Manicured grounds

$1,495,000

4 beds2.5 baths2,400 sq ft

120 Sagamore Rd, Rye, NH 03870

Private yard • 4 season sun room • Large eat-in kitchen

New listings for sale in 03854

COMING SOON

$3,995,000

5 beds5.5 baths6,238 sq ft

50 Abigale Ln, New Castle, NH 03854

Dramatic living room • Chef kitchen • Private retreat

Home values near 21 Little Harbor Rd

Data from public records.

Address	Redfin Estimate
168 Little Harbor Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 4098 Sq. Ft.	$3,720,882
49 Little Harbor Rd, New Castle, NH 4 Beds \| 4.5 Baths \| 4756 Sq. Ft.	$3,370,058
11 Little Harbor Rd, New Castle, NH 3 Beds \| 4.5 Baths \| 5057 Sq. Ft.	$3,324,804
172 Little Harbor Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 3986 Sq. Ft.	$3,557,183
60 Mill Pond Rd, New Castle, NH 5 Beds \| 4.5 Baths \| 4300 Sq. Ft.	$3,942,511
42 North Gate Rd, New Castle, NH 3 Beds \| 3 Baths \| 3935 Sq. Ft.	$2,285,491
20 Old Bay Rd, New Castle, NH 3 Beds \| 2.5 Baths \| 2944 Sq. Ft.	$2,030,157

Address	Redfin Estimate
172 Little Harbor Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 3979 Sq. Ft.	$3,917,111
35 Little Harbor Rd, New Castle, NH 4 Beds \| 4.5 Baths \| - Sq. Ft.	$3,160,464
35 Little Harbor Rd, New Castle, NH 4 Beds \| 4.5 Baths \| 4859 Sq. Ft.	$3,371,037
49 Little Harbor Rd, New Castle, NH 4 Beds \| 4.5 Baths \| 5803 Sq. Ft.	$3,299,556
10 Harborview St, New Castle, NH 2 Beds \| 4.5 Baths \| 3891 Sq. Ft.	$2,701,158
40 Mill Pond Rd, New Castle, NH 4 Beds \| 3.5 Baths \| - Sq. Ft.	$2,933,254
56 Old Bay Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 3052 Sq. Ft.	$2,098,467

Address	Redfin Estimate
11 Little Harbor Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 3600 Sq. Ft.	$3,609,171
172 Little Harbor Rd Apartment 27-6, New Castle, NH 3 Beds \| 3.5 Baths \| 3538 Sq. Ft.	$3,434,768
168 Little Harbor Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 4098 Sq. Ft.	$3,689,640
20 Old Bay Rd, New Castle, NH 3 Beds \| 2.5 Baths \| 2300 Sq. Ft.	$1,899,407
2 Harborview St, New Castle, NH 3 Beds \| 3 Baths \| 3756 Sq. Ft.	$2,813,392
56 Old Bay Rd, New Castle, NH 3 Beds \| 3.5 Baths \| 3189 Sq. Ft.	$2,388,556
42 North Gate Rd, New Castle, NH 3 Beds \| 2.5 Baths \| 3089 Sq. Ft.	$2,209,664

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