Google street view image for 21 Gilbert St, Waltham, MA 02453

Off market sep 1990 for $185K

$830,096

Est. refi paymentEst. refi $1,210/mo

•

1.5 ba

•

1,574

sq ft

21 Gilbert St, Waltham, MA 02453

About this home

21 Gilbert St is a 1,574 square foot house on a 4,792 square foot lot with 5 bedrooms and 1.5 bathrooms. - it last sold on September 01, 1990 for $185,000. Based on Redfin's Waltham data, we estimate the home's value is $830,096.

Single-familyProperty Type

1989Year Built

4,792 sq ftLot Size

$527Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$830,096

$645K since sold in September 1990$2,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.3% lower than the average sale price ($906K) of 6 comparable homes.

SOLD OCT 13, 2026
$1,190,000
A
4 beds2 baths1,600 sq ft
34 Anthony Rd, Newton, MA 02460
SOLD OCT 14, 2026
$900,000
B
3 beds1.5 baths1,463 sq ft
12 Gilbert St, Waltham, MA 02453
SOLD JUN 4, 2026
$712,500
C
3 beds2 baths1,685 sq ft
20 Gale St, Waltham, MA 02453
SOLD OCT 28, 2026
$952,500
D
4 beds2 baths2,000 sq ft
31 Phillips Cir, Waltham, MA 02452
SOLD JUL 20, 2026
$948,000
E
3 beds1.5 baths1,700 sq ft
43 Grandview Ave, Watertown, MA 02472
SOLD AUG 20, 2026
$730,000
F
3 beds2 baths1,505 sq ft
11 Bright St, Waltham, MA 02453

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$787,956

Est. take-home

List your home with Redfin and save $4,150

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,424/mo

Redfin rental estimate

List your home for rent

Market trends in 02453, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

99.7%

0.2% MoM

Median sale price

$827K

$11K MoM

Avg. days on market

30d

3 days MoM

Recently sold homes

2 MoM

New listings for sale

$539,900
4 beds4 baths1,443 sq ft
92 Brown St #2, Waltham, MA 02453
$429,000
1 bed1 bath642 sq ft
19 Robbins St Unit 2-2, Waltham, MA 02453
See all

Provided by Redfin

Sale history for 21 Gilbert St

Year

Property tax

Land + Additions

Assessment*

2026

$7,634 (+2.7%)

$396,900 + $342,800

$739,700

2025

$7,432 (+2.4%)

$378,000 + $378,800

$756,800

2024

$7,261 (+8.4%)

$378,000 + $375,200

$753,200

2023

$6,697 (−5.3%)

$343,000 + $305,900

$648,900

2022

$7,069 (+9.5%)

$343,000 + $291,600

$634,600

2021

$6,455 (+1.8%)

$294,000 + $276,200

$570,200

2020

$6,341 (+5.1%)

$266,000 + $264,600

$530,600

2019

$6,036 (+9.9%)

$257,000 + $219,800

$476,800

2018

$5,490 (+5.5%)

$238,000 + $197,400

$435,400

2017

$5,205 (+4.4%)

$217,000 + $197,400

$414,400

2016

$4,987 (−3.4%)

$210,000 + $197,400

$407,400

2015

$5,161 (+2.3%)

$206,500 + $186,600

$393,100

2014

$5,044 (+0.2%)

$189,000 + $186,600

$375,600

2013

$5,036 (+0.4%)

$172,900 + $200,400

$373,300

2012

$5,018 (+2.0%)

$172,900 + $203,000

$375,900

2011

$4,921 (+1.9%)

$172,900 + $203,000

$375,900

2010

$4,828 (+11.7%)

$182,000 + $203,000

$385,000

2009

$4,321

$182,600 + $199,800

$382,400

Tax history for 21 Gilbert St

Year

Property tax

Land + Additions

Assessment*

2026

$7,634 (+2.7%)

$396,900 + $342,800

$739,700

2025

$7,432 (+2.4%)

$378,000 + $378,800

$756,800

2024

$7,261 (+8.4%)

$378,000 + $375,200

$753,200

2023

$6,697 (−5.3%)

$343,000 + $305,900

$648,900

2022

$7,069 (+9.5%)

$343,000 + $291,600

$634,600

2021

$6,455 (+1.8%)

$294,000 + $276,200

$570,200

2020

$6,341 (+5.1%)

$266,000 + $264,600

$530,600

2019

$6,036 (+9.9%)

$257,000 + $219,800

$476,800

2018

$5,490 (+5.5%)

$238,000 + $197,400

$435,400

2017

$5,205 (+4.4%)

$217,000 + $197,400

$414,400

2016

$4,987 (−3.4%)

$210,000 + $197,400

$407,400

2015

$5,161 (+2.3%)

$206,500 + $186,600

$393,100

2014

$5,044 (+0.2%)

$189,000 + $186,600

$375,600

2013

$5,036 (+0.4%)

$172,900 + $200,400

$373,300

2012

$5,018 (+2.0%)

$172,900 + $203,000

$375,900

2011

$4,921 (+1.9%)

$172,900 + $203,000

$375,900

2010

$4,828 (+11.7%)

$182,000 + $203,000

$385,000

2009

$4,321

$182,600 + $199,800

$382,400

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

Property details

Interior

Basement Information
Basement Sq. Ft: 672

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

Heating & Cooling
Heating Type: Forced Hot Water

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 5

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Colonial
Construction Type: Frame
Exterior Wall: Vinyl
Roof Shape Type: Gable

Property Information
Subdivision Name: PLAN 277F
Living Sq. Ft: 1,574
Gross Sq. Ft: 2,871
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 4,792
Municipality Name: WALTHAM
Acres: 0.11
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 5
Baths: 1.5
Sq. Ft.: 1,574
Stories: 2.0
Lot Size: 4,792 square feet
Style: Single Family Residential
Year Built: 1989
Year Renovated: —
County: Middlesex County
APN: 2759914S

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

K - 12
Preschool & daycare

James Fitzgerald Elementary School

Public K-5 • Assigned • 0.5mi

6/10

John W. McDevitt Middle School

Public 6-8 • Assigned • 0.7mi

7/10

Waltham Senior High School

Public 9-12 • Assigned • 1.8mi

4/10

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

5/10 Heat Factor

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

6/10 Wind Factor

53% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Waltham, MA • 02453

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

9 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$789,000 – $955,000

Reach more buyers when you sell with Redfin. Save up to $8,301 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN SAT, 12PM TO 1:30PM

$759,900

2 beds1 bath2,202 sq ft

42 Prentice St, Waltham, MA 02451

Updated kitchen • Quartz countertops • Formal dining room

$1,249,980

3 beds2.5 baths2,835 sq ft

174 Forest, Waltham, MA 02452

Raised ranch • New roof • New paint

$1,249,000

4 beds3.5 baths3,002 sq ft

308 Newton St #1, Waltham, MA 02453

Ultra-chef kitchen • Great room • Linear gas fireplace

$769,900

3 beds1 bath1,113 sq ft

54 Evans St, Watertown, MA 02472

Welcoming entry hall • Spacious living room • Custom built-ins

OPEN SUN, 11AM TO 12:30PM

$1,099,000

4 beds3 baths2,018 sq ft

63 Mayall Rd, Waltham, MA 02453

Updated kitchen • Large center island • Custom built-ins

$990,000

4 beds3 baths2,323 sq ft

32 Grosvenor Rd, Waltham, MA 02453

Hardwood floors • Fireplace • Updated kitchen

New listings for sale in 02453

$539,900

4 beds4 baths1,443 sq ft

92 Brown St #2, Waltham, MA 02453

Fully renovated • E-i-k kitchen • Stainless appliances

$429,000

1 bed1 bath642 sq ft

19 Robbins St Unit 2-2, Waltham, MA 02453

Hardwood flooring • Central air • In-unit laundry

Home values near 21 Gilbert St

Data from public records.

Address	Redfin Estimate
17 Gilbert St, Waltham, MA 4 Beds \| 1.5 Baths \| 1866 Sq. Ft.	$864,363
33 Gilbert St, Waltham, MA 2 Beds \| 1.5 Baths \| 1256 Sq. Ft.	$747,371
30 Gilbert St, Waltham, MA 4 Beds \| 1 Baths \| 2054 Sq. Ft.	$767,855
16 Gilbert St, Waltham, MA 4 Beds \| 1.5 Baths \| 2332 Sq. Ft.	$978,973
11 Potter Rd, Waltham, MA 3 Beds \| 3 Baths \| 2393 Sq. Ft.	$987,899
36 Potter Rd, Waltham, MA 3 Beds \| 1.5 Baths \| 1125 Sq. Ft.	$831,330
240 Main St, Waltham, MA 3 Beds \| 3.5 Baths \| 2991 Sq. Ft.	$1,099,038

Address	Redfin Estimate
15 Gilbert St, Waltham, MA 3 Beds \| 2.5 Baths \| 1798 Sq. Ft.	$937,330
45 Gilbert St, Waltham, MA 2 Beds \| 1 Baths \| 2007 Sq. Ft.	$800,424
28 Gilbert St, Waltham, MA 3 Beds \| 1 Baths \| 1979 Sq. Ft.	$710,628
12 Gilbert St, Waltham, MA 3 Beds \| 1.5 Baths \| 1463 Sq. Ft.	$876,220
19 Potter Rd, Waltham, MA 4 Beds \| 1 Baths \| 1332 Sq. Ft.	$735,073
26 Potter Rd, Waltham, MA 4 Beds \| 2.5 Baths \| 2214 Sq. Ft.	$915,130
234 Main St, Waltham, MA 3 Beds \| 1.5 Baths \| 1854 Sq. Ft.	$945,349

Address	Redfin Estimate
27 Gilbert St, Waltham, MA 4 Beds \| 1.5 Baths \| 1800 Sq. Ft.	$876,722
40 Gilbert St, Waltham, MA 2 Beds \| 1 Baths \| 960 Sq. Ft.	$663,628
22 Gilbert St, Waltham, MA 3 Beds \| 1.5 Baths \| 1652 Sq. Ft.	$776,801
23 Gilbert St, Waltham, MA 3 Beds \| 1 Baths \| 1867 Sq. Ft.	$793,452
236 Main St, Waltham, MA 4 Beds \| 1.5 Baths \| 2128 Sq. Ft.	$1,061,243
14 Potter Rd, Waltham, MA 4 Beds \| 2 Baths \| 1550 Sq. Ft.	$881,031
11 Harding Ave, Waltham, MA 4 Beds \| 2 Baths \| 2564 Sq. Ft.	$990,611

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

Redfin Brokerage Licenses

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

02478 homes for sale
02421 homes for sale
02451 homes for sale
02472 homes for sale
02453 homes for sale

Houses for rent in Waltham	Agents near me	Quincy, MA homes for sale	Waltham Housing Market
Houses for sale near me	Boston, MA homes for sale	Brookline, MA homes for sale
Land for sale near me	Newton, MA homes for sale	Arlington, MA homes for sale
Open Houses near me	Cambridge, MA homes for sale	Waltham Property Records
Condos for sale near me	Lexington, MA homes for sale	MA New Listings

Cambridge homes for sale
Boston homes for sale
Newton homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 02453, MA

Sale history for 21 Gilbert St

Tax history for 21 Gilbert St

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02453

Home values near 21 Gilbert St

More real estate resources