Google street view image for 66 Allen St, Lexington, MA 02421

OFF MARKET

$1,307,213

•

2.5 ba

•

2,302

sq ft

66 Allen St, Lexington, MA 02421

About this home

66 Allen St is a 2,302 square foot multi-family home on a 0.73 acre lot with 4 bedrooms and 2.5 bathrooms. Based on Redfin's Lexington data, we estimate the home's value is $1,307,213.

Multi-familyProperty Type

1970Year Built

0.73 acresLot Size

$568Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,307,213

$72K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 11.7% lower than the average sale price ($1.48M) of 6 comparable homes.

SOLD SEP 10, 2025
$1,230,000
A
4 beds3 baths2,256 sq ft
60 Allen St, Lexington, MA 02421
SOLD AUG 13, 2026
$1,480,000
B
3 beds3 baths2,007 sq ft
241 Worthen Rd E, Lexington, MA 02421
SOLD JUL 10, 2026
$1,050,000
C
3 beds2 baths2,330 sq ft
780 Waltham St, Lexington, MA 02421
SOLD JUN 22, 2026
$1,450,000
D
3 beds2.5 baths3,042 sq ft
98 Blossomcrest Rd, Lexington, MA 02421
SOLD MAY 8, 2026
$1,970,000
E
4 beds3 baths2,220 sq ft
32 Moon Hill Rd, Lexington, MA 02421
SOLD JUL 2, 2026
$1,700,000
F
4 beds2.5 baths2,240 sq ft
3 Compton Cir, Lexington, MA 02421

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Earn from this home

Sell

$1,241,428

Est. take-home

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Market trends in 02421, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.4%

0.7% MoM

Median sale price

$1.7M

$12K MoM

Avg. days on market

22d

3 days MoM

Recently sold homes

26 MoM

New listings for sale

EARLY ACCESS
$1,850,000
5 beds4 baths3,981 sq ft
32 Webster Rd, Lexington, MA 02421
EARLY ACCESS
$889,000
3 beds2 baths2,682 sq ft
12 Watertown St, Lexington, MA 02421
$1,389,000
4 beds3 baths2,392 sq ft
184 Concord Ave, Lexington, MA 02421
$2,850,000
5 beds4 baths5,024 sq ft
209 Waltham St, Lexington, MA 02421
$2,395,000
4 beds4.5 baths4,376 sq ft
171 Lincoln St, Lexington, MA 02421
3D WALKTHROUGH
$989,000
3 beds1.5 baths1,372 sq ft
1 Constitution Rd, Lexington, MA 02421
See all

Provided by Redfin

Sale history for 66 Allen St

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

Year

Property tax

Land + Additions

Assessment*

2026

$15,905 (−1.8%)

$799,000 + $493,000

$1,292,000

2025

$16,193 (+2.6%)

$761,000 + $563,000

$1,324,000

2024

$15,778 (+2.2%)

$725,000 + $563,000

$1,288,000

2023

$15,444 (+6.0%)

$659,000 + $529,000

$1,188,000

2022

$14,573 (+2.8%)

$599,000 + $457,000

$1,056,000

2021

$14,174 (+3.3%)

$571,000 + $414,000

$985,000

2020

$13,727 (+4.3%)

$571,000 + $406,000

$977,000

2019

$13,160 (+2.4%)

$544,000 + $388,000

$932,000

2018

$12,856 (+14.0%)

$518,000 + $381,000

$899,000

2017

$11,273 (−4.9%)

$478,000 + $300,000

$778,000

2016

$11,855 (+2.9%)

$455,000 + $357,000

$812,000

2014

$11,524 (+4.0%)

$368,000 + $375,000

$743,000

2013

$11,081 (+4.8%)

$368,000 + $361,000

$729,000

2012

$10,569 (+4.3%)

$348,000 + $358,000

$706,000

2011

$10,138 (+3.9%)

$331,000 + $373,000

$704,000

2010

$9,757 (+4.3%)

$331,000 + $373,000

$704,000

2009

$9,351

$348,000 + $373,000

$721,000

Tax history for 66 Allen St

Year

Property tax

Land + Additions

Assessment*

2026

$15,905 (−1.8%)

$799,000 + $493,000

$1,292,000

2025

$16,193 (+2.6%)

$761,000 + $563,000

$1,324,000

2024

$15,778 (+2.2%)

$725,000 + $563,000

$1,288,000

2023

$15,444 (+6.0%)

$659,000 + $529,000

$1,188,000

2022

$14,573 (+2.8%)

$599,000 + $457,000

$1,056,000

2021

$14,174 (+3.3%)

$571,000 + $414,000

$985,000

2020

$13,727 (+4.3%)

$571,000 + $406,000

$977,000

2019

$13,160 (+2.4%)

$544,000 + $388,000

$932,000

2018

$12,856 (+14.0%)

$518,000 + $381,000

$899,000

2017

$11,273 (−4.9%)

$478,000 + $300,000

$778,000

2016

$11,855 (+2.9%)

$455,000 + $357,000

$812,000

2014

$11,524 (+4.0%)

$368,000 + $375,000

$743,000

2013

$11,081 (+4.8%)

$368,000 + $361,000

$729,000

2012

$10,569 (+4.3%)

$348,000 + $358,000

$706,000

2011

$10,138 (+3.9%)

$331,000 + $373,000

$704,000

2010

$9,757 (+4.3%)

$331,000 + $373,000

$704,000

2009

$9,351

$348,000 + $373,000

$721,000

*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: 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: Duplex
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 2,302
Gross Sq. Ft: 2,992
Ground Floor Sq. Ft: 1,276
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 31,799
Municipality Name: LEXINGTON
Acres: 0.73
Zoning Code: RO
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 2,302
Stories: 2.0
Lot Size: 0.73 acres
Style: Multi-Family (2-4 Unit)
Year Built: 1970
Year Renovated: —
County: Middlesex County
APN: 2367276S

Home facts updated by county records on Jul 29, 2026

Around this home

Schools

Bridge Elementary School

Public K-5 • Assigned • 1.4mi

10/10

Jonas Clarke Middle School

Public 6-8 • Assigned • 0.5mi

10/10

Lexington High School

Public 9-12 • Assigned • 1.4mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Lexington continues to be a competitive Seller's market driven by its historic appeal & location. With buildable land exhausted, true inventory growth is very constrained; development mostly replaces existing homes. New zoning laws will eventually...
2 months ago • Lexington
Benjamin Ginsburg
Redfin Premier agent
152 deals
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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

47% 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

Lexington, MA • 02421

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

$1.24M – $1.50M

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Nearby similar homes

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New listings for sale in 02421

EARLY ACCESSCOLDWELL BANKER REALTY COMING SOON

$1,850,000

5 beds4 baths3,981 sq ft

32 Webster Rd, Lexington, MA 02421

EARLY ACCESSCOMPASS COMING SOON

$889,000

3 beds2 baths2,682 sq ft

12 Watertown St, Lexington, MA 02421

$1,389,000

4 beds3 baths2,392 sq ft

184 Concord Ave, Lexington, MA 02421

$2,850,000

5 beds4 baths5,024 sq ft

209 Waltham St, Lexington, MA 02421

$2,395,000

4 beds4.5 baths4,376 sq ft

171 Lincoln St, Lexington, MA 02421

3D WALKTHROUGH

$989,000

3 beds1.5 baths1,372 sq ft

1 Constitution Rd, Lexington, MA 02421

Home values near 66 Allen St

Data from public records.

Address	Redfin Estimate
75 Allen Street, Lexington, MA 3 Beds \| 3 Baths \| 2212 Sq. Ft.	$1,526,559
65 Allen Street, Lexington, MA 6 Beds \| 5.5 Baths \| 8108 Sq. Ft.	$4,130,407

Address	Redfin Estimate
73 Allen Street, Lexington, MA 2 Beds \| 1 Baths \| 792 Sq. Ft.	$1,255,623
56 Allen Street, Lexington, MA 4 Beds \| 2 Baths \| 2492 Sq. Ft.	$1,293,368

Address	Redfin Estimate
69 Allen Street, Lexington, MA 2 Beds \| 1 Baths \| 1118 Sq. Ft.	$984,126
50 Allen Street, Lexington, MA 3 Beds \| 2 Baths \| 1706 Sq. Ft.	$1,389,983

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 02421, MA

Sale history for 66 Allen St

Tax history for 66 Allen St

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02421

Home values near 66 Allen St

More real estate resources