OFF MARKET

Off Market Sep 2016 for $490K

$1,001,170

Est. refi paymentEst. refi $1,838/mo

•

3,085

sq ft

21 Cathy Rd, Chelmsford, MA 01824

About this home

Stunning and incredibly Spacious 75' Contemporary Split in Highly Desirable Chelmsford neighborhood, featuring a Huge 28' Master Suite with fireplace, master bath, sitting room and 13' of closet space. Open concept living with full wall of windows in kitchen & dining area, and Hardwood floors in living rm. and other 3 bedrooms . Offers front-to-back fireplaced family room and Full in-law-potential apartment w/separate kitchen, bath & first level entry. Enjoy the Summer and the extended season with a beautiful Gunite in-ground pool with a 400K BTU heater installed in 2012. Gunite hot tub usually allows owners enjoyable usage May to October. The over one acre wooded lot provides privacy, and great pond views with a wide variety of wildlife. This home has 3 full baths, and a Long list of updates: roof, windows, new dishwasher 2015,water heater 2014.

Single-familyProperty Type

1967Year Built

1.01 acresLot Size

$325Est. Price/Sq.Ft.

2 garage spacesParking

Listed by Ron Marsella • Coldwell Banker Residential Brokerage - Chelmsford

Bought with Jean Kearney McGillick • Coldwell Banker Residential Brokerage - Chelmsford

Redfin checked: a few seconds ago

•Source:MLS PIN #72013757

Redfin Estimate

$1,001,170

$511K since sold in September 2016$64K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.4% lower than the average sale price ($1.00M) of 6 comparable homes.

SOLD AUG 12, 2026
$940,000
A
4 beds2.5 baths2,480 sq ft
12 Crabapple Ln, Chelmsford, MA 01824
SOLD APR 29, 2026
$895,000
B
4 beds3 baths2,720 sq ft
34 Clover Hill Dr, Chelmsford, MA 01824
SOLD AUG 14, 2026
$1,520,000
C
4 beds3.5 baths3,745 sq ft
7 Clover Hill Dr, Chelmsford, MA 01824
SOLD JAN 30, 2026
$864,900
D
5 beds2.5 baths3,064 sq ft
6 Clover Hill Dr, Chelmsford, MA 01824
SOLD AUG 13, 2026
$934,000
E
4 beds3.5 baths2,667 sq ft
26 Ideal Ave, Chelmsford, MA 01824
SOLD JUL 15, 2026
$875,000
F
4 beds2 baths1,900 sq ft
3 Jonathan Ln, Chelmsford, MA 01824

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Earn from this home

Sell

$642,552

Est. take-home

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Refinance

Est. cash available

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Rent

$3,517/mo

Redfin rental estimate

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Market trends in 01824, MA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.1%

+0.3% MoM

Median sale price

$735K

$31K MoM

Avg. days on market

18d

0 days MoM

Recently sold homes

11 MoM

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Provided by Redfin

Sale history for 21 Cathy Rd

Date

Event

Price

MLS PIN #72013757

Sep 23, 2016

Sold

$490,000

$159/sq ft

Jul 28, 2016

Pending

—

Jul 13, 2016

Price Changed

$509,900

$165/sq ft

Jun 21, 2016

Price Changed

$519,900

$169/sq ft

May 31, 2016

Listed

$529,900

$172/sq ft

MLS PIN #71233345

Sep 30, 2011

Sold

$397,500

$129/sq ft

Jul 22, 2011

Contingent

—

Jun 3, 2011

Price Changed

$419,900

$136/sq ft

May 16, 2011

Listed

$439,900

$143/sq ft

+21

Wow! Incredibly Spacious 75' Contemporary Split! Long list of updates: heat, roof, windows & much more. Full in-law apartment w/ separate kitchen, bath & first level entry. Open concept living with full wall of windows in kitchen & dining area. Huge 28' Master Suite w/ fireplace, full, updated granite bath, sitting area and 13' of closet space! Front to back fireplaced family room. Over an acre w/ sweeping views of woodlands & pond. Private yard w/ gunite pool. Great buy! See it early!

Public Records

May 27, 1988

Sold

$289,900

$94/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$9,907 (+1.9%)

$355,000 + $391,600

$746,600

2025

$9,720 (+0.7%)

$323,500 + $375,800

$699,300

2024

$9,650 (+8.3%)

$323,500 + $385,000

$708,500

2023

$8,908 (+7.1%)

$329,600 + $290,300

$619,900

2022

$8,316 (+3.7%)

$286,400 + $240,900

$527,300

2021

$8,021 (−2.1%)

$262,700 + $246,900

$509,600

2020

$8,197 (+1.4%)

$233,000 + $265,300

$498,300

2019

$8,080 (−2.0%)

$240,700 + $253,500

$494,200

2018

$8,245 (+2.7%)

$205,400 + $253,700

$459,100

2017

$8,028 (−3.2%)

$192,400 + $255,600

$448,000

2016

$8,297 (+7.6%)

$183,700 + $276,500

$460,200

2014

$7,712 (+6.6%)

$160,600 + $245,700

$406,300

2013

$7,232 (+2.7%)

$190,900 + $212,000

$402,900

2012

$7,041 (+17.6%)

$185,200 + $217,400

$402,600

2011

$5,989 (+2.6%)

$173,900 + $184,300

$358,200

2010

$5,836 (−0.4%)

$187,400 + $197,800

$385,200

2009

$5,862

$193,500 + $223,100

$416,600

Tax history for 21 Cathy Rd

Year

Property tax

Land + Additions

Assessment*

2026

$9,907 (+1.9%)

$355,000 + $391,600

$746,600

2025

$9,720 (+0.7%)

$323,500 + $375,800

$699,300

2024

$9,650 (+8.3%)

$323,500 + $385,000

$708,500

2023

$8,908 (+7.1%)

$329,600 + $290,300

$619,900

2022

$8,316 (+3.7%)

$286,400 + $240,900

$527,300

2021

$8,021 (−2.1%)

$262,700 + $246,900

$509,600

2020

$8,197 (+1.4%)

$233,000 + $265,300

$498,300

2019

$8,080 (−2.0%)

$240,700 + $253,500

$494,200

2018

$8,245 (+2.7%)

$205,400 + $253,700

$459,100

2017

$8,028 (−3.2%)

$192,400 + $255,600

$448,000

2016

$8,297 (+7.6%)

$183,700 + $276,500

$460,200

2014

$7,712 (+6.6%)

$160,600 + $245,700

$406,300

2013

$7,232 (+2.7%)

$190,900 + $212,000

$402,900

2012

$7,041 (+17.6%)

$185,200 + $217,400

$402,600

2011

$5,989 (+2.6%)

$173,900 + $184,300

$358,200

2010

$5,836 (−0.4%)

$187,400 + $197,800

$385,200

2009

$5,862

$193,500 + $223,100

$416,600

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

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

1.01 Acres

Year renovated

—

Sq. Ft.

1,930

Year built

1967

Style

Single Family Residential

County

Middlesex County

APN

3154525S

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 12, 2026.

Property details

Parking

Parking Information
Has Garage
Has Open Parking
# of Garage Spaces: 2
# of Covered Spaces: 2
Parking Spaces: 6
AttachedGarageYN: Yes
Parking Features: Under, Garage Door Opener, Heated Garage, Storage, Workshop in Garage, Paved Drive, Off Street, Paved

Interior

Master Bedroom Information
Area: 588
Length: 28
Width: 21
Level: First
Features: Bathroom - Full,Cedar Closet(s),Flooring - Wall to Wall Carpet,Dressing Room

Bedroom #2 Information
Area: 100
Length: 10
Width: 10
Level: First
Features: Closet,Flooring - Hardwood

Bedroom #3 Information
Area: 140
Length: 10
Width: 14
Level: First
Features: Closet,Flooring - Hardwood

Bedroom #4 Information
Area: 140
Length: 10
Width: 14
Level: First
Features: Closet,Flooring - Hardwood

Bedroom #5 Information
Area: 108
Length: 9
Width: 12
Level: Basement
Features: Closet,Flooring - Wall to Wall Carpet

Bathroom Information
# of Bathrooms (Full): 3
Master Bathroom Features: Yes

Bathroom #1 Information
Level: First

Bathroom #2 Information
Level: First

Bathroom #3 Information
Level: Basement

Living Room Information
Area: 210
Length: 14
Width: 15
Level: First
Features: Flooring - Hardwood,Window(s) - Picture

Family Room Information
Area: 345
Length: 15
Width: 23
Level: Basement
Features: Closet,Flooring - Wall to Wall Carpet

Dining Room Information
Level: First
Features: Flooring - Hardwood

Kitchen Information
Area: 345
Length: 23
Width: 15
Level: First
Features: Flooring - Stone/Ceramic Tile,Dining Area,Kitchen Island,Deck - Exterior

Basement Information
Basement: Full, Finished, Walk-Out Access, Garage Access

Fireplace Information
Has Fireplace
# of Fireplaces (Total): 2
Fireplace Features: Family Room, Master Bedroom

Interior Features
# of Rooms (Total): 10
Window Features: Insulated Windows, Storm Window(s)
Flooring: Tile, Carpet, Hardwood, Flooring - Wall to Wall Carpet, Laminate
Interior Features: In-Law Floorplan, Inlaw Apt.

Exterior

Building Information
Building Area (Total): 3,085
Foundation Details: Concrete Perimeter, Irregular
Construction Materials: Frame, Brick
Year Built Source: Public Records
Year Built Details: Actual
Color: gray

Exterior Features
Fencing: Fenced
Roof: Shingle
Patio And Porch Features: Deck, Patio
Exterior Features: Deck, Patio, Pool - Inground Heated, Hot Tub/Spa, Storage, Sprinkler System, Decorative Lighting, Fenced Yard

Pool Information
Has Private Pool
Has Spa
Pool Features: Pool - Inground Heated
Spa Features: Private

Property Information
PropertySubType: Single Family Residence
Green Energy Efficient : Thermostat

Lot Information
Lot Size (Acres): 1.01
Lot Features: Wooded
ViewYN: Has View
View: Scenic View(s)
Frontage Length: 150
Road Frontage Type: Public

Financial

Tax Information
Tax Annual Amount: $8,297.41
Tax Year: 2016

Utilities

Utility Information
Utilities: for Gas Range, for Gas Oven
Sewer: Public Sewer
Water Source: Public
Electric: 110 Volts, Circuit Breakers, 100 Amp Service

Heating & Cooling
Has Heating
Has Cooling
Heating: Baseboard, Natural Gas
Cooling: Window Unit(s), Wall Unit(s)

Location

Location Information
Directions: Westford St. to Courtland Dr., 2nd Rt. onto Cathy Rd.
UnparsedAddress: 21 Cathy Rd, Chelmsford MA 01824

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Golf, Bike Path, Conservation Area, Highway Access

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,930
Stories: 1.0
Lot Size: 1.01 acres
Style: Single Family Residential
Year Built: 1967
Year Renovated: —
County: Middlesex County
APN: 3154525S

Home facts updated by county records on Aug 12, 2026

Other

Miscellaneous Information
Heat Zones: 4

Listing Information
StandardStatus: Closed

Around this home

Schools

Col Moses Parker School

Public 5-6 • Assigned • 1.3mi

8/10

Chelmsford High School

Public 9-12 • Assigned • 1.5mi

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

4/10 Heat Factor

7 days above 97° 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, 2 days in 30 years

Provided by First Street

Historical weather

Chelmsford, MA • 01824

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 9.1 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9.1 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$952,000 – $1.15M

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Home values near 21 Cathy Rd

Data from public records.

Address	Redfin Estimate
23 Cathy Road, Chelmsford, MA 3 Beds \| 1.5 Baths \| 1763 Sq. Ft.	$743,286
18 Cathy Road, Chelmsford, MA 3 Beds \| 1.5 Baths \| 1868 Sq. Ft.	$741,882

Address	Redfin Estimate
14 Cathy Road, Chelmsford, MA 5 Beds \| 2 Baths \| 2461 Sq. Ft.	$860,470
11 Cathy Road, Chelmsford, MA 3 Beds \| 1.5 Baths \| 1632 Sq. Ft.	$720,301

Address	Redfin Estimate
16 Cathy Road, Chelmsford, MA 4 Beds \| 1.5 Baths \| 1777 Sq. Ft.	$809,530
13 Cathy Road, Chelmsford, MA 3 Beds \| 1.5 Baths \| 1128 Sq. Ft.	$670,182

Property information provided by MLS PIN when last listed in 2016. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 01824, MA

Sale history for 21 Cathy Rd

Tax history for 21 Cathy Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 01824

Home values near 21 Cathy Rd

More real estate resources