Google street view image for 9 Plainfield St, Lexington, MA 02421

OFF MARKET

$2,046,685

•

2.5 ba

•

2,999

sq ft

9 Plainfield St, Lexington, MA 02421

About this home

9 Plainfield St is a 2,999 square foot house on a 0.26 acre lot with 4 bedrooms and 2.5 bathrooms. Based on Redfin's Lexington data, we estimate the home's value is $2,046,685.

Single-familyProperty Type

1910Year Built

0.26 acresLot Size

$682Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,046,685

$4,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 27% higher than the average sale price ($1.61M) of 6 comparable homes.

SOLD JUL 16, 2026
$2,115,000
A
4 beds2.5 baths3,909 sq ft
14 Locust Ave, Lexington, MA 02421
SOLD DEC 12, 2025
$1,500,000
B
4 beds2.5 baths3,033 sq ft
36 Independence Ave, Lexington, MA 02421
SOLD AUG 31, 2026
$1,433,000
C
4 beds3 baths2,446 sq ft
3 Watson Rd, Lexington, MA 02421
SOLD BY REDFIN JUL 31, 2026
$1,250,000
D
4 beds2 baths2,600 sq ft
21 Bartlett Ave, Lexington, MA 02420
SOLD JUN 18, 2026
$1,590,000
E
4 beds2.5 baths2,949 sq ft
15 Hancock St, Lexington, MA 02420
SOLD JUN 18, 2026
$1,785,000
F
4 beds3.5 baths2,822 sq ft
12 Tower Rd, Lexington, MA 02421

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Earn from this home

Sell

$1,944,251

Est. take-home

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Rent

$5,762/mo

Redfin rental estimate

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Market trends in 02421, MA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.5%

+0.2% MoM

Median sale price

$1.6M

$71K MoM

Avg. days on market

22d

0 days MoM

Recently sold homes

14 MoM

New listings for sale

EARLY ACCESS
$1,950,000
4 beds4 baths2,684 sq ft
9 Richard Rd, Lexington, MA 02421
$1,070,000
2 beds1.5 baths1,209 sq ft
72 Valleyfield St, Lexington, MA 02421
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
OPEN SAT, 12PM TO 2:30PM
$1,389,000
4 beds3 baths2,392 sq ft
184 Concord Ave, Lexington, MA 02421
OPEN SAT, 10AM TO 11:30AM
$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
See all

Provided by Redfin

Sale history for 9 Plainfield St

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

Year

Property tax

Land + Additions

Assessment*

2026

$21,813 (+7.1%)

$1,073,000 + $699,000

$1,772,000

2025

$20,363 (+4.5%)

$1,022,000 + $643,000

$1,665,000

2024

$19,490 (+4.9%)

$974,000 + $617,000

$1,591,000

2023

$18,577 (−0.7%)

$885,000 + $544,000

$1,429,000

2022

$18,699 (+3.2%)

$804,000 + $551,000

$1,355,000

2021

$18,117 (+3.3%)

$766,000 + $493,000

$1,259,000

2020

$17,534 (+1.0%)

$766,000 + $482,000

$1,248,000

2019

$17,353 (−2.1%)

$730,000 + $499,000

$1,229,000

2018

$17,718 (+6.8%)

$676,000 + $563,000

$1,239,000

2017

$16,591 (+7.1%)

$644,000 + $501,000

$1,145,000

2016

$15,491 (+6.4%)

$591,000 + $470,000

$1,061,000

2014

$14,564 (+4.3%)

$481,000 + $458,000

$939,000

2013

$13,969 (+0.1%)

$481,000 + $438,000

$919,000

2012

$13,952 (+0.3%)

$503,000 + $429,000

$932,000

2011

$13,910 (+3.9%)

$510,000 + $456,000

$966,000

2010

$13,389 (+4.0%)

$510,000 + $456,000

$966,000

2009

$12,879

$537,000 + $456,000

$993,000

Tax history for 9 Plainfield St

Year

Property tax

Land + Additions

Assessment*

2026

$21,813 (+7.1%)

$1,073,000 + $699,000

$1,772,000

2025

$20,363 (+4.5%)

$1,022,000 + $643,000

$1,665,000

2024

$19,490 (+4.9%)

$974,000 + $617,000

$1,591,000

2023

$18,577 (−0.7%)

$885,000 + $544,000

$1,429,000

2022

$18,699 (+3.2%)

$804,000 + $551,000

$1,355,000

2021

$18,117 (+3.3%)

$766,000 + $493,000

$1,259,000

2020

$17,534 (+1.0%)

$766,000 + $482,000

$1,248,000

2019

$17,353 (−2.1%)

$730,000 + $499,000

$1,229,000

2018

$17,718 (+6.8%)

$676,000 + $563,000

$1,239,000

2017

$16,591 (+7.1%)

$644,000 + $501,000

$1,145,000

2016

$15,491 (+6.4%)

$591,000 + $470,000

$1,061,000

2014

$14,564 (+4.3%)

$481,000 + $458,000

$939,000

2013

$13,969 (+0.1%)

$481,000 + $438,000

$919,000

2012

$13,952 (+0.3%)

$503,000 + $429,000

$932,000

2011

$13,910 (+3.9%)

$510,000 + $456,000

$966,000

2010

$13,389 (+4.0%)

$510,000 + $456,000

$966,000

2009

$12,879

$537,000 + $456,000

$993,000

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

Property details

Interior

Basement Information
Basement Sq. Ft: 875

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: 9

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Wood Siding/Shingle

Property Information
Subdivision Name: LEXINGTON
Living Sq. Ft: 2,999
Gross Sq. Ft: 5,001
Ground Floor Sq. Ft: 1,615
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 11,326
Municipality Name: LEXINGTON
Acres: 0.26
Zoning Code: RS
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 2,999
Stories: 2.0
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 1910
Year Renovated: —
County: Middlesex County
APN: 3127862S

Home facts updated by county records on Jul 29, 2026

Around this home

Schools

Bowman Elementary School

Public K-5 • Assigned • 0.8mi

10/10

Jonas Clarke Middle School

Public 6-8 • Assigned • 1.0mi

10/10

Lexington High School

Public 9-12 • Assigned • 1.3mi

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
153 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

50% 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

$1.95M – $2.35M

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New listings for sale in 02421

EARLY ACCESSCOLDWELL BANKER REALTY COMING SOON

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4 beds4 baths2,684 sq ft

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EARLY ACCESSCOLDWELL BANKER REALTY COMING SOON

$1,850,000

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EARLY ACCESSCOMPASS COMING SOON

$889,000

3 beds2 baths2,682 sq ft

12 Watertown St, Lexington, MA 02421

OPEN SAT, 12PM TO 2:30PM

$1,389,000

4 beds3 baths2,392 sq ft

184 Concord Ave, Lexington, MA 02421

OPEN SAT, 10AM TO 11:30AM

$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

Home values near 9 Plainfield St

Data from public records.

Address	Redfin Estimate
10 Plainfield Street, Lexington, MA 7 Beds \| 4.5 Baths \| 4524 Sq. Ft.	$2,042,893
7 Plainfield Street, Lexington, MA 4 Beds \| 2 Baths \| 1729 Sq. Ft.	$1,340,661

Address	Redfin Estimate
11 Plainfield Street, Lexington, MA 3 Beds \| 1.5 Baths \| 1376 Sq. Ft.	$1,149,273
8 Plainfield Street, Lexington, MA 4 Beds \| 3.5 Baths \| 3004 Sq. Ft.	$1,898,180

Address	Redfin Estimate
3 Plainfield Street, Lexington, MA 4 Beds \| 2.5 Baths \| 4994 Sq. Ft.	$2,176,763
6 Plainfield Street, Lexington, MA 4 Beds \| 2.5 Baths \| 2741 Sq. Ft.	$2,033,460

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