Google street view image for 20 Marion Rd #18, Belmont, MA 02478

OFF MARKET

$1,456,259

•

3 ba

•

3,724

sq ft

20 Marion Rd #18, Belmont, MA 02478

About this home

20 Marion Rd #18 is a 3,724 square foot multi-family home on a 3,485 square foot lot with 6 bedrooms and 3 bathrooms. Based on Redfin's Belmont data, we estimate the home's value is $1,456,259.

Multi-familyProperty Type

1911Year Built

3,485 sq ftLot Size

$391Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,456,259

$24K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.3% lower than the average sale price ($1.46M) of 6 comparable homes.

SOLD JUL 22, 2026
$1,237,500
A
5 beds3 baths2,964 sq ft
33 Kimball Rd, Watertown, MA 02472
SOLD MAY 4, 2026
$1,015,000
B
5 beds3 baths2,957 sq ft
6-8 Irma Ave, Watertown, MA 02472
SOLD JUL 14, 2026
$1,150,000
C
5 beds3 baths3,517 sq ft
152 Spruce St, Watertown, MA 02472
SOLD JUN 11, 2026
$2,595,000
D
5 beds3 baths3,726 sq ft
335 Huron Ave, Cambridge, MA 02138
SOLD AUG 13, 2026
$1,375,000
E
6 beds3 baths3,738 sq ft
42-44 Choate, Belmont, MA 02478
SOLD MAY 29, 2026
$1,390,000
F
5 beds3 baths2,928 sq ft
113 Langdon Ave, Watertown, MA 02472

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Earn from this home

Sell

$1,383,087

Est. take-home

List your home with Redfin and save $7,281

Market trends in 02478, MA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.3%

0.4% MoM

Median sale price

$1.4M

$31K MoM

Avg. days on market

17d

1 days MoM

Recently sold homes

14 MoM

New listings for sale

3D & VIDEO TOUR
$1,995,000
4 beds3.5 baths2,756 sq ft
128 Watson Rd, Belmont, MA 02478
$879,000
2 beds1 bath1,130 sq ft
114 Payson Rd #2, Belmont, MA 02478
3D WALKTHROUGH
$879,000
2 beds1 bath1,530 sq ft
112 Payson #1, Belmont, MA 02478
$929,900
3 beds2.5 baths1,845 sq ft
81 Grant Ave #81, Belmont, MA 02478
See all

Provided by Redfin

Sale history for 20 Marion Rd #18

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

Year

Property tax

Land + Additions

Assessment*

2025

$15,559 (+4.7%)

$679,000 + $687,000

$1,366,000

2024

$14,858 (+1.2%)

$931,000 + $476,000

$1,407,000

2023

$14,679 (+5.4%)

$878,000 + $428,000

$1,306,000

2022

$13,930 (+10.0%)

$804,000 + $401,000

$1,205,000

2021

$12,659 (+11.9%)

$796,000 + $301,000

$1,097,000

2020

$11,308 (+7.4%)

$641,000 + $387,000

$1,028,000

2019

$10,526 (+3.6%)

$492,000 + $410,000

$902,000

2018

$10,157 (+5.2%)

$426,000 + $410,000

$836,000

2017

$9,657 (+1.6%)

$351,000 + $410,000

$761,000

2016

$9,508 (+16.6%)

$351,000 + $406,000

$757,000

2015

$8,153 (−0.2%)

$313,000 + $319,000

$632,000

2014

$8,168 (+1.3%)

$269,000 + $336,000

$605,000

2013

$8,065 (−3.3%)

$269,000 + $336,000

$605,000

2012

$8,344 (+3.5%)

$226,000 + $399,000

$625,000

2011

$8,063 (−1.3%)

$226,000 + $383,000

$609,000

2010

$8,172 (+3.4%)

$226,000 + $446,000

$672,000

2009

$7,907

$229,000 + $436,000

$665,000

Tax history for 20 Marion Rd #18

Year

Property tax

Land + Additions

Assessment*

2025

$15,559 (+4.7%)

$679,000 + $687,000

$1,366,000

2024

$14,858 (+1.2%)

$931,000 + $476,000

$1,407,000

2023

$14,679 (+5.4%)

$878,000 + $428,000

$1,306,000

2022

$13,930 (+10.0%)

$804,000 + $401,000

$1,205,000

2021

$12,659 (+11.9%)

$796,000 + $301,000

$1,097,000

2020

$11,308 (+7.4%)

$641,000 + $387,000

$1,028,000

2019

$10,526 (+3.6%)

$492,000 + $410,000

$902,000

2018

$10,157 (+5.2%)

$426,000 + $410,000

$836,000

2017

$9,657 (+1.6%)

$351,000 + $410,000

$761,000

2016

$9,508 (+16.6%)

$351,000 + $406,000

$757,000

2015

$8,153 (−0.2%)

$313,000 + $319,000

$632,000

2014

$8,168 (+1.3%)

$269,000 + $336,000

$605,000

2013

$8,065 (−3.3%)

$269,000 + $336,000

$605,000

2012

$8,344 (+3.5%)

$226,000 + $399,000

$625,000

2011

$8,063 (−1.3%)

$226,000 + $383,000

$609,000

2010

$8,172 (+3.4%)

$226,000 + $446,000

$672,000

2009

$7,907

$229,000 + $436,000

$665,000

*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 Type: Full

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 15

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Old
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle

Property Information
Subdivision Name: HOUSE SALE/BELMONT
Living Sq. Ft: 3,724
Ground Floor Sq. Ft: 1,172
# of Units: 3
# of Stories: 3

Lot Information
# of Buildings: 1
Land Sq. Ft: 3,485
Municipality Name: BELMONT
Acres: 0.08
Zoning Code: R
State Use Description: 3-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 6
Baths: 3.0
Sq. Ft.: 3,724
Stories: 3.0
Lot Size: 3,485 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1911
Year Renovated: —
County: Middlesex County
APN: 2863003S

Home facts updated by county records on Jul 28, 2026

Around this home

Schools

Winthrop L Chenery Middle School

Public 4-6 • Assigned • 0.9mi

7/10

Belmont 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

Belmont is a low-inventory, high-demand market driven both by restrictive zoning laws & proximity to Cambridge. New housing production is scarce, with demand for properties always exceeding supply. This will keep the market difficult for buyers and...
2 months ago • Belmont
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

6/10 Heat Factor

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

6/10 Wind Factor

58% 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

Belmont, MA • 02478

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

9.2 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.38M – $1.68M

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New listings for sale in 02478

3D & VIDEO TOUR

$1,995,000

4 beds3.5 baths2,756 sq ft

128 Watson Rd, Belmont, MA 02478

$879,000

2 beds1 bath1,130 sq ft

114 Payson Rd #2, Belmont, MA 02478

3D WALKTHROUGH

$879,000

2 beds1 bath1,530 sq ft

112 Payson #1, Belmont, MA 02478

$929,900

3 beds2.5 baths1,845 sq ft

81 Grant Ave #81, Belmont, MA 02478

Home values near 20 Marion Rd #18

Data from public records.

Address	Redfin Estimate
43 Marion Road, Belmont, MA 7 Beds \| 3 Baths \| 3850 Sq. Ft.	$1,568,436
35 Marion Road #C, Belmont, MA 3 Beds \| 2 Baths \| 1639 Sq. Ft.	$807,787

Address	Redfin Estimate
39 Marion Road, Belmont, MA 6 Beds \| 3 Baths \| 3721 Sq. Ft.	$1,618,981
23 Marion Road, Belmont, MA 6 Beds \| 3 Baths \| 3661 Sq. Ft.	$1,067,136

Address	Redfin Estimate
35 Marion Road #B, Belmont, MA 2 Beds \| 1 Baths \| 1172 Sq. Ft.	$663,958
12 Marion Road #10, Belmont, MA 8 Beds \| 8 Baths \| 4207 Sq. Ft.	$2,149,293

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