Google street view image for 21 Mason Rd, Newton, MA 02459

Off market

$1,826,216

•

3.5 ba

•

2,300

sq ft

21 Mason Rd, Newton, MA 02459

About this home

21 Mason Rd is a 2,300 square foot house on a 7,841 square foot lot with 6 bedrooms and 3.5 bathrooms. Based on Redfin's Newton data, we estimate the home's value is $1,826,216.

Single-familyProperty Type

1921Year Built

7,841 sq ftLot Size

$794Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,826,216

$24K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.6% higher than the average sale price ($1.73M) of 6 comparable homes.

SOLD SEP 17, 2026
$1,700,000
A
4 beds3.5 baths2,766 sq ft
601 Walnut St, Newton, MA 02460
SOLD AUG 14, 2026
$1,435,000
B
4 beds3.5 baths2,291 sq ft
105 Grant Ave, Newton, MA 02459
SOLD JUL 10, 2026
$2,000,000
C
5 beds3.5 baths2,686 sq ft
34 Converse Ave, Newton, MA 02458
SOLD JUN 29, 2026
$1,800,000
D
4 beds2.5 baths2,151 sq ft
26 Berkshire Rd, Newton, MA 02460
SOLD SEP 18, 2026
$1,879,500
E
6 beds3 baths2,993 sq ft
26 Hillside Rd, Newton Highlands, MA 02461
SOLD AUG 13, 2026
$1,560,000
F
3 beds3 baths2,414 sq ft
24 Fenno Rd, Newton, MA 02459

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Earn from this home

Sell

$1,734,709

Est. take-home

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Rent

$5,633/mo

Redfin rental estimate

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Market trends in 02459, MA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

98.5%

0.9% MoM

Median sale price

$1.8M

$221K MoM

Avg. days on market

36d

10 days MoM

Recently sold homes

16 MoM

New listings for sale

$4,200,000
6 beds7 baths6,350 sq ft
55 Rosalie Rd, Newton, MA 02459
EARLY ACCESS
$1,795,000
2 beds3 baths3,337 sq ft
403 Dedham St Unit E, Newton, MA 02459
OPEN TODAY, 12PM TO 1PM
$1,299,000
3 beds3.5 baths2,370 sq ft
79 Beecher Pl #79, Newton, MA 02459
3D WALKTHROUGH
$4,685,000
6 beds6.5 baths5,582 sq ft
67 Meadowbrook Rd, Newton, MA 02459
OPEN SUN, 12PM TO 1:30PM
$1,150,000
3 beds1.5 baths1,400 sq ft
15 Cummings Rd, Newton, MA 02459
OPEN TODAY, 11AM TO 12PM
$949,000
3 beds1.5 baths1,890 sq ft
26-28 Wessex Rd #28, Newton, MA 02459
$3,900,000
4 beds3.5 baths5,145 sq ft
200 Dudley, Newton, MA 02459
OPEN TODAY, 11:30AM TO 1PM
$3,000,000
6 beds6.5 baths5,590 sq ft
145 Hagen Rd, Newton, MA 02459
See all

Provided by Redfin

Sale history for 21 Mason Rd

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

Year

Property tax

Land + Additions

Assessment*

2026

$14,575 (+3.8%)

$1,244,700 + $259,400

$1,504,100

2025

$14,039 (+3.4%)

$1,185,400 + $247,100

$1,432,500

2024

$13,574 (+5.0%)

$1,150,900 + $239,900

$1,390,800

2023

$12,933 (+4.5%)

$875,100 + $395,300

$1,270,400

2022

$12,375 (+3.6%)

$810,300 + $366,000

$1,176,300

2021

$11,940 (+3.1%)

$764,400 + $345,300

$1,109,700

2020

$11,585 (+2.9%)

$764,400 + $345,300

$1,109,700

2019

$11,259 (+4.0%)

$742,100 + $335,300

$1,077,400

2018

$10,822 (+3.1%)

$669,800 + $330,400

$1,000,200

2017

$10,493 (+4.6%)

$631,900 + $311,700

$943,600

2016

$10,036 (+4.9%)

$590,600 + $291,300

$881,900

2015

$9,569 (+0.6%)

$552,000 + $272,200

$824,200

2014

$9,511 (+5.5%)

$505,600 + $279,100

$784,700

2013

$9,016 (+2.9%)

$505,600 + $279,100

$784,700

2012

$8,765 (+5.0%)

$505,600 + $279,100

$784,700

2011

$8,345 (−4.6%)

$508,900 + $256,700

$765,600

2010

$8,746 (+2.4%)

$519,300 + $320,900

$840,200

2009

$8,539

$529,900 + $327,400

$857,300

Tax history for 21 Mason Rd

Year

Property tax

Land + Additions

Assessment*

2026

$14,575 (+3.8%)

$1,244,700 + $259,400

$1,504,100

2025

$14,039 (+3.4%)

$1,185,400 + $247,100

$1,432,500

2024

$13,574 (+5.0%)

$1,150,900 + $239,900

$1,390,800

2023

$12,933 (+4.5%)

$875,100 + $395,300

$1,270,400

2022

$12,375 (+3.6%)

$810,300 + $366,000

$1,176,300

2021

$11,940 (+3.1%)

$764,400 + $345,300

$1,109,700

2020

$11,585 (+2.9%)

$764,400 + $345,300

$1,109,700

2019

$11,259 (+4.0%)

$742,100 + $335,300

$1,077,400

2018

$10,822 (+3.1%)

$669,800 + $330,400

$1,000,200

2017

$10,493 (+4.6%)

$631,900 + $311,700

$943,600

2016

$10,036 (+4.9%)

$590,600 + $291,300

$881,900

2015

$9,569 (+0.6%)

$552,000 + $272,200

$824,200

2014

$9,511 (+5.5%)

$505,600 + $279,100

$784,700

2013

$9,016 (+2.9%)

$505,600 + $279,100

$784,700

2012

$8,765 (+5.0%)

$505,600 + $279,100

$784,700

2011

$8,345 (−4.6%)

$508,900 + $256,700

$765,600

2010

$8,746 (+2.4%)

$519,300 + $320,900

$840,200

2009

$8,539

$529,900 + $327,400

$857,300

*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: 1,040

Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Steam

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 10

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Colonial
Construction Type: Concrete
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 2,300
Gross Sq. Ft: 4,584
Ground Floor Sq. Ft: 1,260
# of Units: 1
# of Stories: 2

Parking & Garage Information
Parking Type: Detached Garage
Garage / Carport Type: Detached

Lot Information
# of Buildings: 1
Land Sq. Ft: 7,841
Municipality Name: NEWTON
Acres: 0.18
Zoning Code: SR2
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 6
Baths: 3.5
Sq. Ft.: 2,300
Stories: 2.0
Lot Size: 7,841 square feet
Style: Single Family Residential
Year Built: 1921
Year Renovated: —
County: Middlesex County
APN: 168129S

Home facts updated by county records on Sep 10, 2026

Around this home

Schools

Mason-Rice Elementary School

Public K-5 • Assigned • 0.3mi

9/10

Charles E Brown Middle School

Public 6-8 • Assigned • 2.0mi

10/10

Newton South High School

Public 9-12 • Assigned • 1.7mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Comprising 13 distinct 'villages,' Newton remains a fiercely competitive Seller's market. With restrictive zoning, multiple T stops, and a suburban setting near Boston, this highly desirable, built-out city lacks new buildable land, ensuring new...
1 month ago • Newton
Benjamin Ginsburg
Redfin Premier agent
155 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

2/10 Fire Factor

0.00% chance of being 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

50% chance of strong winds in next 30 years

2/10 Air Factor

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

Provided by First Street

Historical weather

Newton, MA • 02459

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

$1.74M – $2.10M

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Home values near 21 Mason Rd

Data from public records.

Address	Redfin Estimate
27 Mason Road, Newton, MA 5 Beds \| 3.5 Baths \| 2720 Sq. Ft.	$1,958,959
32 Mason Road, Newton, MA 4 Beds \| 1.5 Baths \| 2499 Sq. Ft.	$1,961,978

Address	Redfin Estimate
33 Mason Road, Newton, MA 4 Beds \| 2.5 Baths \| 2560 Sq. Ft.	$1,815,331
26 Mason Road, Newton, MA 6 Beds \| 2.5 Baths \| 2700 Sq. Ft.	$1,896,808

Address	Redfin Estimate
39 Mason Road, Newton, MA 5 Beds \| 2.5 Baths \| 2493 Sq. Ft.	$2,066,369
20 Mason Road, Newton, MA 4 Beds \| 4 Baths \| 3388 Sq. Ft.	$2,763,771

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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 02459, MA

Sale history for 21 Mason Rd

Tax history for 21 Mason Rd

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 02459

Home values near 21 Mason Rd

More real estate resources