OFF MARKET

Off Market Dec 2017 for $908K

$1,440,014

Est. refi paymentEst. refi $2,070/mo

•

2,172

sq ft

9 Mason St, Lexington, MA 02421

About this home

Filled with natural light, this Mid-Century-Modern classic is an expanded version of the original Walter Pierce "Peacock Farm B House" design. The warm, well-maintained hardwood floors, soaring ceilings, huge windows, and an open floor plan with post-and-beam construction are all the winning features today's modernist fans cherish. The Pleasant Brook neighborhood was a later offshoot of the adjacent Peacock Farm neighborhood and the other improvements from the original floor plan include a full basement, resulting in the fully finished first level and locating utilities and generous storage space in the full-height sub-basement. The first level has a full bath, large family room/rec room, and two good sized bedrooms. The main floor is perfect for entertaining and the kitchen could be opened up for even more flow. Heated 3-season room off dining area. Three bedrooms + full bath are a few steps up. Enjoy the neighborhood pool and just a short jaunt to Wilson Farms and Sutherland Woods

Single-familyProperty Type

1969Year Built

0.46 acresLot Size

$663Est. Price/Sq.Ft.

4 spacesParking

Listed by The Janovitz-Tse Team • William Raveis R.E. & Home Services

Bought with Paul Huang Team • Ivy Gate Realty

Redfin checked: 3 minutes ago

•Source:MLS PIN #72242357

Redfin Estimate

$1,440,014

$532K since sold in December 2017$1,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.2% lower than the average sale price ($1.64M) of 6 comparable homes.

SOLD JUL 2, 2026
$1,700,000
A
4 beds2.5 baths2,240 sq ft
3 Compton Cir, Lexington, MA 02421
SOLD JUL 28, 2026
$1,450,000
B
4 beds3 baths2,148 sq ft
42 Peacock Farm Rd, Lexington, MA 02421
SOLD AUG 21, 2026
$1,662,000
C
4 beds2.5 baths2,234 sq ft
41 Locust Ave, Lexington, MA 02421
SOLD AUG 13, 2026
$1,480,000
D
3 beds3 baths2,007 sq ft
241 Worthen Rd E, 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 JUN 26, 2026
$1,580,000
F
3 beds2 baths2,158 sq ft
15 Spring Valley Rd, Belmont, MA 02478

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

Earn from this home

Sell

$774,647

Est. take-home

List your home with Redfin and save $7,200

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,918/mo

Redfin rental estimate

List your home for rent

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 Mason St

Year

Property tax

Land + Additions

Assessment*

2026

$14,513 (+2.7%)

$784,000 + $395,000

$1,179,000

2025

$14,126 (+5.9%)

$746,000 + $409,000

$1,155,000

2024

$13,340 (+4.6%)

$711,000 + $378,000

$1,089,000

2023

$12,753 (+7.3%)

$646,000 + $335,000

$981,000

2022

$11,882

$587,000 + $274,000

$861,000

2021

$11,886 (+0.6%)

$559,000 + $267,000

$826,000

2020

$11,816 (+4.0%)

$559,000 + $282,000

$841,000

2019

$11,367 (+3.8%)

$533,000 + $272,000

$805,000

2018

$10,954 (−1.0%)

$507,000 + $259,000

$766,000

2017

$11,070 (+3.6%)

$478,000 + $286,000

$764,000

2016

$10,687 (+6.0%)

$455,000 + $277,000

$732,000

2014

$10,082 (+6.3%)

$372,000 + $278,000

$650,000

2013

$9,485 (+6.0%)

$361,000 + $263,000

$624,000

2012

$8,952 (+0.4%)

$353,000 + $245,000

$598,000

2011

$8,914 (+2.7%)

$355,000 + $264,000

$619,000

2010

$8,676 (+3.7%)

$355,000 + $271,000

$626,000

2009

$8,366

$374,000 + $271,000

$645,000

Tax history for 9 Mason St

Year

Property tax

Land + Additions

Assessment*

2026

$14,513 (+2.7%)

$784,000 + $395,000

$1,179,000

2025

$14,126 (+5.9%)

$746,000 + $409,000

$1,155,000

2024

$13,340 (+4.6%)

$711,000 + $378,000

$1,089,000

2023

$12,753 (+7.3%)

$646,000 + $335,000

$981,000

2022

$11,882

$587,000 + $274,000

$861,000

2021

$11,886 (+0.6%)

$559,000 + $267,000

$826,000

2020

$11,816 (+4.0%)

$559,000 + $282,000

$841,000

2019

$11,367 (+3.8%)

$533,000 + $272,000

$805,000

2018

$10,954 (−1.0%)

$507,000 + $259,000

$766,000

2017

$11,070 (+3.6%)

$478,000 + $286,000

$764,000

2016

$10,687 (+6.0%)

$455,000 + $277,000

$732,000

2014

$10,082 (+6.3%)

$372,000 + $278,000

$650,000

2013

$9,485 (+6.0%)

$361,000 + $263,000

$624,000

2012

$8,952 (+0.4%)

$353,000 + $245,000

$598,000

2011

$8,914 (+2.7%)

$355,000 + $264,000

$619,000

2010

$8,676 (+3.7%)

$355,000 + $271,000

$626,000

2009

$8,366

$374,000 + $271,000

$645,000

*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

0.46 Acres

Year renovated

—

Sq. Ft.

1,326

Year built

1969

Style

Single Family Residential

County

Middlesex County

APN

2428445S

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 29, 2026.

Property details

Parking

Parking Information
Parking Spaces: 4
Parking Features: Off Street

Interior

Master Bedroom Information
Area: 198
Length: 18
Width: 11
Level: Third
Features: Flooring - Hardwood

Bedroom #2 Information
Area: 121
Length: 11
Width: 11
Level: Third
Features: Flooring - Hardwood

Bedroom #3 Information
Area: 108
Length: 12
Width: 9
Level: Third
Features: Flooring - Hardwood

Bedroom #4 Information
Area: 90
Length: 10
Width: 9
Level: First

Bedroom #5 Information
Area: 108
Length: 12
Width: 9
Level: First

Bathroom Information
# of Bathrooms (Full): 2

Bathroom #1 Information
Level: Third
Features: Bathroom - Full,Bathroom - Tiled With Tub & Shower

Bathroom #2 Information
Level: First
Features: Bathroom - Full,Bathroom - Tiled With Tub & Shower

Living Room Information
Area: 368
Length: 23
Width: 16
Level: Main,Second
Features: Cathedral Ceiling(s),Beamed Ceilings,Flooring - Hardwood,Window(s) - Picture,Exterior Access,Open Floorplan,Recessed Lighting

Family Room Information
Area: 216
Length: 18
Width: 12
Level: First
Features: Bathroom - Full,Exterior Access

Dining Room Information
Area: 110
Length: 11
Width: 10
Level: Main,Second
Features: Cathedral Ceiling(s),Beamed Ceilings,Flooring - Hardwood,Exterior Access,Open Floorplan

Kitchen Information
Area: 117
Length: 13
Width: 9
Level: Main,Second
Features: Flooring - Laminate

Basement Information
Basement: Full, Interior Entry

Laundry Information
Laundry Features: In Basement, Electric Dryer Hookup, Washer Hookup

Fireplace Information
Has Fireplace
# of Fireplaces (Total): 1
Fireplace Features: Living Room

Interior Features
# of Rooms (Total): 9
Flooring: Tile, Vinyl, Hardwood

Exterior

Building Information
Building Area (Total): 2,172
Foundation Details: Concrete Perimeter
Construction Materials: Post & Beam
Year Built Source: Public Records
Year Built Details: Actual
Color: Brown

Exterior Features
Roof: Rubber
Patio And Porch Features: Porch - Enclosed
Exterior Features: Porch - Enclosed, Storage

Property Information
PropertySubType: Single Family Residence

Lot Information
Lot Size (Acres): 0.46
Lot Features: Wooded
Road Frontage Type: Public

Financial

Tax Information
Tax Annual Amount: $11,070
Tax Year: 2017

Utilities

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

Heating & Cooling
Has Heating
Has Cooling
Heating: Baseboard, Oil
Cooling: Wall Unit(s)

Location

HOA Information
Has Association
Association Fee Frequency: Annually
Homeowners Association Membership Not Required

Location Information
Directions: Pleasant or Peacock Farm to Mason
UnparsedAddress: 9 Mason St, Lexington MA 02421

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Walk/Jog Trails, Bike Path, Conservation Area, Highway Access

Public facts

Beds: 5
Baths: 2.0
Sq. Ft.: 1,326
Stories: 1.0
Lot Size: 0.46 acres
Style: Single Family Residential
Year Built: 1969
Year Renovated: —
County: Middlesex County
APN: 2428445S

Home facts updated by county records on Jul 29, 2026

Other

Listing Information
StandardStatus: Closed

Around this home

Schools

Bowman Elementary School

Public K-5 • Assigned • 0.7mi

10/10

Jonas Clarke Middle School

Public 6-8 • Assigned • 1.3mi

10/10

Lexington High School

Public 9-12 • Assigned • 2.0mi

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
Was this helpful?

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, 14 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

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

$1.37M – $1.66M

Reach more buyers when you sell with Redfin. Save up to $14,400 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN SAT, 11AM TO 12:30PMHOT HOME

$1,159,000

4 beds2.5 baths1,844 sq ft

21 Valentine Rd, Arlington, MA 02476

$1,325,000

6 beds4 baths2,577 sq ft

7 Norton Rd, Lexington, MA 02420

OPEN SAT, 12PM TO 2:30PM

$1,389,000

4 beds3 baths2,392 sq ft

184 Concord Ave, Lexington, MA 02421

OPEN SAT, 1PM TO 2:30PM3D WALKTHROUGH

$1,175,000

4 beds2.5 baths2,526 sq ft

5 Maple St, Lexington, MA 02420

$2,688,000

5 beds5.5 baths4,973 sq ft

19 Cottage St, Lexington, MA 02420

$1,999,000

4 beds4 baths4,133 sq ft

9 Woodcliffe Rd, Lexington, MA 02421

New listings for sale in 02421

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

Home values near 9 Mason St

Data from public records.

Address	Redfin Estimate
2 Mason Street, Lexington, MA 5 Beds \| 3.5 Baths \| 2892 Sq. Ft.	$1,893,390
1 Mason Street, Lexington, MA 6 Beds \| 4 Baths \| 2358 Sq. Ft.	$1,714,701

Address	Redfin Estimate
4 Mason Street, Lexington, MA 4 Beds \| 2 Baths \| 2240 Sq. Ft.	$1,461,680
7 Mason Street, Lexington, MA 5 Beds \| 3 Baths \| 1350 Sq. Ft.	$1,620,062

Address	Redfin Estimate
5 Mason Street, Lexington, MA 4 Beds \| 2 Baths \| 2400 Sq. Ft.	$2,266,571
6 Mason Street, Lexington, MA 5 Beds \| 2 Baths \| 1580 Sq. Ft.	$1,343,314

Property information provided by MLS PIN when last listed in 2017. This data may not match . Learn more.

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.

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.

01730 homes for sale
02474 homes for sale
01890 homes for sale
01801 homes for sale
01803 homes for sale

Houses for rent in Lexington	Agents near me	Quincy, MA homes for sale	Lexington 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	Lexington 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 02421, MA

Sale history for 9 Mason St

Tax history for 9 Mason St

Public record

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 9 Mason St

More real estate resources