Google street view image for 490 Old Dunstable Rd, Groton, MA 01450

OFF MARKET

$820,777

•

2.5 ba

•

2,794

sq ft

490 Old Dunstable Rd, Groton, MA 01450

About this home

490 Old Dunstable Rd is a 2,794 square foot house on a 3.41 acre lot with 4 bedrooms and 2.5 bathrooms. Based on Redfin's Groton data, we estimate the home's value is $820,777.

Single-familyProperty Type

1985Year Built

3.41 acresLot Size

$294Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$820,777

$9,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.9% higher than the average sale price ($783K) of 6 comparable homes.

SOLD JUN 17, 2026
$835,000
A
3 beds2.5 baths2,847 sq ft
41 Chestnut Rd, Tyngsboro, MA 01879
SOLD AUG 14, 2026
$760,000
B
4 beds3 baths2,973 sq ft
486 Old Dunstable Rd, Groton, MA 01450
SOLD AUG 13, 2026
$850,000
C
4 beds2.5 baths2,904 sq ft
15 Hillcrest Dr, Tyngsboro, MA 01879
SOLD AUG 18, 2026
$890,000
D
4 beds2.5 baths2,862 sq ft
8 Upton St, Dunstable, MA 01827
SOLD JUN 16, 2026
$600,000
E
4 beds2 baths2,414 sq ft
271 Hoyts Wharf Rd, Groton, MA 01450
SOLD JUL 24, 2026
$760,000
F
4 beds2.5 baths2,459 sq ft
27 Old Homestead Rd, Groton, MA 01450

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Earn from this home

Sell

$779,099

Est. take-home

List your home with Redfin and save $4,104

Rent

$3,733/mo

Redfin rental estimate

List your home for rent

Market trends in 01450, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.1%

0.7% MoM

Median sale price

$825K

$18K MoM

Avg. days on market

21d

1 days MoM

Recently sold homes

14 MoM

New listings for sale

OPEN SAT, 11AM TO 1PM
$819,900
4 beds2.5 baths2,700 sq ft
197 Mill St, Groton, MA 01450
OPEN SUN, 1PM TO 3PM
$825,000
3 beds2.5 baths2,154 sq ft
63 Hummingbird Ln Unit A, Groton, MA 01450
OPEN SAT, 11:30AM TO 1PM
$475,000
2 beds1 bath864 sq ft
33 Longley Rd, Groton, MA 01450
OPEN SAT, 1PM TO 2:30PM
$750,000
3 beds3 baths2,578 sq ft
470 Lost Lake Dr, Groton, MA 01450
OPEN SAT, 11AM TO 1PM
$899,900
4 beds2.5 baths3,008 sq ft
536 Longley Rd, Groton, MA 01450
OPEN SAT, 11AM TO 12:30PM
$399,900
2 beds1.5 baths1,296 sq ft
8 Bradley Dr Unit C, Groton, MA 01450
See all

Provided by Redfin

Sale history for 490 Old Dunstable Rd

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2026

$10,928 (+2.5%)

$229,702 + $509,700

$739,402

2025

$10,663 (−3.0%)

$219,602 + $479,600

$699,202

2024

$10,992 (+5.1%)

$245,500 + $482,900

$728,400

2023

$10,463 (+7.0%)

$245,500 + $423,500

$669,000

2022

$9,781 (+2.7%)

$221,500 + $347,500

$569,000

2021

$9,525 (+3.3%)

$210,900 + $330,300

$541,200

2020

$9,217 (+6.9%)

$210,900 + $319,400

$530,300

2019

$8,622 (+1.8%)

$201,500 + $274,600

$476,100

2018

$8,471 (−2.2%)

$201,500 + $252,200

$453,700

2017

$8,664 (+3.8%)

$201,500 + $273,000

$474,500

2016

$8,344 (+6.7%)

$189,400 + $254,900

$444,300

2015

$7,821 (+5.1%)

$189,400 + $238,700

$428,100

2014

$7,440 (+1.8%)

$189,400 + $238,700

$428,100

2013

$7,311 (+3.5%)

$189,400 + $244,500

$433,900

2012

$7,067 (−1.8%)

$195,000 + $244,500

$439,500

2011

$7,199 (−0.9%)

$195,000 + $244,500

$439,500

2010

$7,268 (+1.7%)

$210,400 + $250,200

$460,600

2009

$7,143

$248,600 + $250,200

$498,800

Tax history for 490 Old Dunstable Rd

Year

Property tax

Land + Additions

Assessment*

2026

$10,928 (+2.5%)

$229,702 + $509,700

$739,402

2025

$10,663 (−3.0%)

$219,602 + $479,600

$699,202

2024

$10,992 (+5.1%)

$245,500 + $482,900

$728,400

2023

$10,463 (+7.0%)

$245,500 + $423,500

$669,000

2022

$9,781 (+2.7%)

$221,500 + $347,500

$569,000

2021

$9,525 (+3.3%)

$210,900 + $330,300

$541,200

2020

$9,217 (+6.9%)

$210,900 + $319,400

$530,300

2019

$8,622 (+1.8%)

$201,500 + $274,600

$476,100

2018

$8,471 (−2.2%)

$201,500 + $252,200

$453,700

2017

$8,664 (+3.8%)

$201,500 + $273,000

$474,500

2016

$8,344 (+6.7%)

$189,400 + $254,900

$444,300

2015

$7,821 (+5.1%)

$189,400 + $238,700

$428,100

2014

$7,440 (+1.8%)

$189,400 + $238,700

$428,100

2013

$7,311 (+3.5%)

$189,400 + $244,500

$433,900

2012

$7,067 (−1.8%)

$195,000 + $244,500

$439,500

2011

$7,199 (−0.9%)

$195,000 + $244,500

$439,500

2010

$7,268 (+1.7%)

$210,400 + $250,200

$460,600

2009

$7,143

$248,600 + $250,200

$498,800

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

Permits

Feb 5, 2024 • Final

Sheet metal/mechanical

Install two ducted heat pumps.

HVAC

Feb 1, 2024 • Final

Electrical

Install new heat pumps.

Heat pump

HVAC

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Interior

Basement Information
Basement Sq. Ft: 892

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 7

Exterior

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

Property Information
Living Sq. Ft: 2,794
Gross Sq. Ft: 5,012
Ground Floor Sq. Ft: 1,412
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 148,540
Municipality Name: GROTON
Acres: 3.41
Zoning Code: RA
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 2,794
Stories: 2.0
Lot Size: 3.41 acres
Style: Single Family Residential
Year Built: 1985
Year Renovated: —
County: Middlesex County
APN: 2131110S

Home facts updated by county records on Jul 29, 2026

Around this home

Schools

Swallow/Union School

Public K-4 • Assigned • 3.1mi

9/10

Groton Dunstable Regional Middle School

Public 5-8 • Assigned • 3.8mi

7/10

Groton-Dunstable Regional High School

Public 9-12 • Assigned • 2.1mi

9/10

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

3/10 Fire Factor

0.62% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 96° expected this year, 15 days in 30 years

6/10 Wind Factor

27% chance of strong winds in next 30 years

2/10 Air Factor

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

Provided by First Street

Historical weather

Groton, MA • 01450

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.

9 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$780,000 – $944,000

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Home values near 490 Old Dunstable Rd

Data from public records.

Address	Redfin Estimate
530 Old Dunstable Road, Groton, MA 4 Beds \| 2.5 Baths \| 2940 Sq. Ft.	$1,047,912
499 Old Dunstable Road, Groton, MA 4 Beds \| 2.5 Baths \| 2016 Sq. Ft.	$747,791

Address	Redfin Estimate
450 Old Dunstable Road, Groton, MA 4 Beds \| 3 Baths \| 3700 Sq. Ft.	$1,098,205
505 Old Dunstable Road, Groton, MA 4 Beds \| 2.5 Baths \| 3280 Sq. Ft.	$999,973

Address	Redfin Estimate
486 Old Dunstable Road, Groton, MA 4 Beds \| 3 Baths \| 2973 Sq. Ft.	$842,722
515 Old Dunstable Road, Groton, MA 4 Beds \| 2.5 Baths \| 3734 Sq. Ft.	$1,092,222

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