OFF MARKET

Off market may 2023 for $349K

$380,456

•

1,092

sq ft

503 Main St Unit C, Groton, MA 01450

About this home

Welcome to Groton Residential Gardens, a condominium community conveniently located right outside of Groton Center! The photos say it all, this top-floor corner unit has been meticulously maintained so there’s nothing to do but pack your bags and move right in. You’re going to love the bright and sunny open concept living area including a fully applianced kitchen with stone counters, dining area and living room. A hallway nicely separates the bedrooms from the living area, the master suite includes a walk-in closet, private bath and a slider to its own private balcony with a storage room plus spiral stairs leading down to the backyard. The second bedroom is good-sized with its own walk-in closet and there’s a full bath and separate laundry just outside the door. Please see the attached floorplans. Gas heat, AC, town water/sewer and the association manages the plowing and landscaping. Pets are allowed with restrictions.

CondoProperty Type

2006Year Built

$348Est. Price/Sq.Ft.

2 spacesParking

Listed by Kristin Hilberg • Keller Williams Realty Boston Northwest

Bought with Kres and Rosa Team • Buyers Brokers Only, LLC

Redfin checked: a minute ago

•Source:MLS PIN #73093662

Redfin Estimate

$380,456

$31K since sold in May 2023$1,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.5% lower than the average sale price ($386K) of 6 comparable homes.

SOLD MAY 6, 2026
$425,000
A
2 beds2 baths1,092 sq ft
519 Main St Unit D, Groton, MA 01450
SOLD JAN 30, 2026
$199,700
B
2 beds2 baths1,092 sq ft
521 Main St Unit D, Groton, MA 01450
SOLD JUL 31, 2026
$590,000
C
2 beds2 baths1,318 sq ft
606 Autumn Ridge Dr #606, Ayer, MA 01432
SOLD AUG 24, 2026
$420,000
D
2 beds1.5 baths1,404 sq ft
26 Bradley Dr Unit C, Groton, MA 01450
SOLD OCT 2, 2026
$402,000
E
2 beds1.5 baths1,080 sq ft
55 Littleton Rd Unit 11B, Ayer, MA 01432
SOLD SEP 11, 2026
$280,000
F
2 beds2 baths960 sq ft
103 Main St #10, Pepperell, MA 01463

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Sell

$98,601

Est. take-home

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Rent

$2,270/mo

Redfin rental estimate

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Market trends in 01450, MA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.5%

+0.4% MoM

Median sale price

$851K

$24K MoM

Avg. days on market

27d

0 days MoM

Recently sold homes

11 MoM

New listings for sale

OPEN TODAY, 1:30PM TO 3:30PM
$1,049,900
4 beds2.5 baths3,350 sq ft
25 Mclains Woods Rd, Groton, MA 01450
OPEN SUN, 10AM TO 12PM
$780,000
4 beds2.5 baths2,722 sq ft
401 Longley Rd, Groton, MA 01450
OPEN SUN, 10AM TO 12PM
$425,000
3 beds1.5 baths2,015 sq ft
79 Kemp Unit A, Groton, MA 01450
See all

Provided by Redfin

Sale history for 503 Main St Unit C

Date

Event

Price

MLS PIN #73093662

May 25, 2023

Sold

$349,900

$320/sq ft

Mar 31, 2023

Listed

$329,900

$302/sq ft

MLS PIN #70996031

Dec 4, 2009

Sold

$165,900

$152/sq ft

Nov 3, 2009

Contingent

—

Oct 30, 2009

Listed

$165,900

$152/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$5,049 (+22.9%)

$331,100

2024

$4,109 (+0.5%)

$272,300

2023

$4,088 (+4.2%)

$261,400

2022

$3,924 (−1.8%)

$228,300

2021

$3,995 (+21.4%)

$227,000

2020

$3,292 (+12.5%)

$189,400

2019

$2,927 (−3.0%)

$161,600

2018

$3,017 (+2.2%)

$161,600

2017

$2,951 (−5.8%)

$161,600

2016

$3,133 (+5.0%)

$166,800

2015

$2,985 (+5.1%)

$163,400

2014

$2,840 (+3.2%)

$163,400

2013

$2,753 (+4.8%)

$163,400

2012

$2,627 (+9.6%)

$163,400

2011

$2,396 (−15.1%)

$146,300

2010

$2,823 (−9.1%)

$178,900

2009

$3,105

$216,800

Tax history for 503 Main St Unit C

Year

Property tax

Land + Additions

Assessment*

2025

$5,049 (+22.9%)

$331,100

2024

$4,109 (+0.5%)

$272,300

2023

$4,088 (+4.2%)

$261,400

2022

$3,924 (−1.8%)

$228,300

2021

$3,995 (+21.4%)

$227,000

2020

$3,292 (+12.5%)

$189,400

2019

$2,927 (−3.0%)

$161,600

2018

$3,017 (+2.2%)

$161,600

2017

$2,951 (−5.8%)

$161,600

2016

$3,133 (+5.0%)

$166,800

2015

$2,985 (+5.1%)

$163,400

2014

$2,840 (+3.2%)

$163,400

2013

$2,753 (+4.8%)

$163,400

2012

$2,627 (+9.6%)

$163,400

2011

$2,396 (−15.1%)

$146,300

2010

$2,823 (−9.1%)

$178,900

2009

$3,105

$216,800

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

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

—

Year renovated

—

Sq. Ft.

1,092

Year built

2006

Style

Condo/Co-op

County

Middlesex County

APN

4681823

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 16, 2026.

Property details

Parking

Parking Information
Has Open Parking
Parking Spaces: 2
Parking Features: Off Street, Deeded, Paved

Interior

Master Bedroom Information
Area: 204
Length: 12
Width: 17
Level: First
Features: Bathroom - Full,Walk-In Closet(s),Flooring - Wall to Wall Carpet,Balcony - Exterior,Deck - Exterior,Exterior Access,Slider

Bedroom #2 Information
Area: 144
Length: 12
Width: 12
Level: First
Features: Walk-In Closet(s),Flooring - Wall to Wall Carpet

Bathroom Information
# of Bathrooms (Full): 2
Master Bathroom Features: Yes

Bathroom #1 Information
Area: 54
Length: 9
Width: 6
Level: First
Features: Bathroom - Full,Bathroom - With Shower Stall

Bathroom #2 Information
Area: 54
Length: 9
Width: 6
Level: First
Features: Bathroom - Full,Bathroom - With Tub & Shower

Living Room Information
Area: 255
Length: 15
Width: 17
Level: First
Features: Flooring - Wall to Wall Carpet,Open Floorplan

Dining Room Information
Area: 110
Length: 10
Width: 11
Level: First
Features: Flooring - Laminate,Window(s) - Picture,Lighting - Pendant

Kitchen Information
Area: 110
Length: 10
Width: 11
Level: First
Features: Closet,Flooring - Stone/Ceramic Tile,Breakfast Bar / Nook,Lighting - Overhead

Basement Information
Basement: N

Laundry Information
Laundry Features: First Floor, In Unit, Electric Dryer Hookup, Washer Hookup

Interior Features
# of Rooms (Total): 5
Door Features: Insulated Doors
Window Features: Insulated Windows
Flooring: Tile, Carpet, Laminate

Exterior

Building Information
Building Name: Groton Residential Gardens
Building Area (Total): 1,092
Construction Materials: Frame
StructureType: Garden
Stories (Total): 1
Year Built Source: Public Records
Year Built Details: Actual

Exterior Features
Roof: Shingle
Patio And Porch Features: Deck - Composite
Exterior Features: Deck - Composite

Property Information
Accessibility Features: No
PropertySubType: Condominium
Common Walls: Corner
Entry Level: 2
Entry Location: Unit Placement(Upper)
Green Energy Efficient : Thermostat

Financial

Tax Information
Tax Annual Amount: $3,924
Tax Year: 2022

Utilities

Utility Information
Utilities: for Electric Range, for Electric Dryer, Washer Hookup
Sewer: Public Sewer
Water Source: Public
Electric: 200+ Amp Service

Heating & Cooling
Has Heating
Has Cooling
Heating: Forced Air, Natural Gas
Cooling: Central Air

Location

HOA Information
Association Fee: $315
Association Fee Frequency: Monthly
Association Fee Includes: Insurance, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash

Location Information
Directions: No sign on the property. Rt.119/Main Street, from Groton Center take the first drive to the rear.
UnparsedAddress: 503 Main St # C, Groton MA 01450

Community Information
Senior CommunityYN: No
Community Features: Shopping, Walk/Jog Trails, Golf, Private School, Public School
Pets Allowed: Yes w/ Restrictions

Public facts

Beds: 2
Baths: 2.0
Sq. Ft.: 1,092
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 2006
Year Renovated: —
County: Middlesex County
APN: 4681823

Home facts updated by county records on Jul 16, 2026

Other

Miscellaneous Information
Heat Zones: 1

Listing Information
StandardStatus: Closed

Around this home

Schools

Groton Dunstable Regional Middle School

Public 5-8 • Assigned • 0.5mi

7/10

Groton-Dunstable Regional High School

Public 9-12 • Assigned • 3.2mi

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

4/10 Fire Factor

1% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 96° expected this year, 16 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

$362,000 – $438,000

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Home values near 503 Main St Unit C

Data from public records.

Address	Redfin Estimate
505 Main Street #A, Groton, MA 2 Beds \| 2 Baths \| 1118 Sq. Ft.	$266,614
505 Main Street #C, Groton, MA 2 Beds \| 2 Baths \| 1097 Sq. Ft.	$365,358

Address	Redfin Estimate
507 Main Street #B, Groton, MA 2 Beds \| 2 Baths \| 1032 Sq. Ft.	$273,353
505 Main Street #D, Groton, MA 2 Beds \| 2 Baths \| 1092 Sq. Ft.	$389,358

Address	Redfin Estimate
505 Main Street #B, Groton, MA 2 Beds \| 2 Baths \| 1218 Sq. Ft.	$396,625
503 Main Street #A, Groton, MA 2 Beds \| 2 Baths \| 1218 Sq. Ft.	$353,742

Property information provided by MLS PIN when last listed in 2023. This data may not match . Learn more.

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