Google street view image for 403 Trapelo Rd, Belmont, MA 02478

OFF MARKET

$1,514,452

•

4 ba

•

3,636

sq ft

403 Trapelo Rd, Belmont, MA 02478

About this home

403 Trapelo Rd is a 3,636 square foot multi-family home on a 6,534 square foot lot with 6 bedrooms and 4 bathrooms. Based on Redfin's Belmont data, we estimate the home's value is $1,514,452.

Multi-familyProperty Type

1907Year Built

6,534 sq ftLot Size

$417Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,514,452

$44K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 14.2% lower than the average sale price ($1.77M) of 6 comparable homes.

SOLD JUL 17, 2026
$1,700,000
A
5 beds3 baths3,098 sq ft
16-18 Walnut St, Belmont, MA 02478
SOLD MAY 4, 2026
$2,350,000
B
7 beds5.5 baths3,390 sq ft
45-47 Bartlett Ave, Belmont, MA 02478
SOLD MAY 29, 2026
$1,800,000
C
6 beds3 baths2,773 sq ft
23 Lawndale St, Belmont, MA 02478
SOLD APR 21, 2026
$1,360,000
D
6 beds3 baths2,922 sq ft
519 Belmont St, Belmont, MA 02478
SOLD JUL 17, 2026
$1,984,000
E
6 beds3.5 baths3,869 sq ft
42 Fairmont St, Belmont, MA 02478
SOLD MAY 29, 2026
$1,400,000
F
5 beds2 baths2,626 sq ft
15-17 Hull St, Belmont, MA 02478

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Earn from this home

Sell

$1,438,396

Est. take-home

List your home with Redfin and save $7,572

Market trends in 02478, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.7%

+0.1% MoM

Median sale price

$1.4M

$29K MoM

Avg. days on market

16d

1 days MoM

Recently sold homes

14 MoM

New listings for sale

OPEN SAT, 12PM TO 2PM
$1,388,800
4 beds2 baths2,834 sq ft
24-26 Baker St, Belmont, MA 02478
OPEN FRI, 11AM TO 12:30PM
$929,900
3 beds2.5 baths1,845 sq ft
81 Grant Ave #81, Belmont, MA 02478
OPEN SUN, 1:30PM TO 2:45PM
$2,499,000
5 beds3.5 baths2,859 sq ft
45 Wellesley Rd, Belmont, MA 02478
See all

Provided by Redfin

Sale history for 403 Trapelo Rd

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

Year

Property tax

Land + Additions

Assessment*

2025

$13,019 (+2.1%)

$534,000 + $609,000

$1,143,000

2024

$12,746 (+1.7%)

$707,000 + $500,000

$1,207,000

2023

$12,533 (+5.3%)

$667,000 + $448,000

$1,115,000

2022

$11,907 (−1.6%)

$611,000 + $419,000

$1,030,000

2021

$12,105 (+13.0%)

$676,000 + $373,000

$1,049,000

2020

$10,714 (+1.2%)

$564,000 + $410,000

$974,000

2019

$10,585 (+1.0%)

$439,000 + $468,000

$907,000

2018

$10,485

$399,000 + $464,000

$863,000

2017

$10,495 (+7.3%)

$366,000 + $461,000

$827,000

2016

$9,784 (+6.7%)

$325,000 + $454,000

$779,000

2015

$9,172 (+9.4%)

$297,000 + $414,000

$711,000

2014

$8,384 (+1.3%)

$255,000 + $366,000

$621,000

2013

$8,278 (−4.0%)

$255,000 + $366,000

$621,000

2012

$8,624 (+5.1%)

$220,000 + $426,000

$646,000

2011

$8,209 (+4.2%)

$208,000 + $412,000

$620,000

2010

$7,880 (+3.2%)

$208,000 + $440,000

$648,000

2009

$7,633

$211,000 + $431,000

$642,000

Tax history for 403 Trapelo Rd

Year

Property tax

Land + Additions

Assessment*

2025

$13,019 (+2.1%)

$534,000 + $609,000

$1,143,000

2024

$12,746 (+1.7%)

$707,000 + $500,000

$1,207,000

2023

$12,533 (+5.3%)

$667,000 + $448,000

$1,115,000

2022

$11,907 (−1.6%)

$611,000 + $419,000

$1,030,000

2021

$12,105 (+13.0%)

$676,000 + $373,000

$1,049,000

2020

$10,714 (+1.2%)

$564,000 + $410,000

$974,000

2019

$10,585 (+1.0%)

$439,000 + $468,000

$907,000

2018

$10,485

$399,000 + $464,000

$863,000

2017

$10,495 (+7.3%)

$366,000 + $461,000

$827,000

2016

$9,784 (+6.7%)

$325,000 + $454,000

$779,000

2015

$9,172 (+9.4%)

$297,000 + $414,000

$711,000

2014

$8,384 (+1.3%)

$255,000 + $366,000

$621,000

2013

$8,278 (−4.0%)

$255,000 + $366,000

$621,000

2012

$8,624 (+5.1%)

$220,000 + $426,000

$646,000

2011

$8,209 (+4.2%)

$208,000 + $412,000

$620,000

2010

$7,880 (+3.2%)

$208,000 + $440,000

$648,000

2009

$7,633

$211,000 + $431,000

$642,000

*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: 4

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 15

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Old
Construction Type: Frame
Exterior Wall: Aluminum/Vinyl

Property Information
Living Sq. Ft: 3,636
Ground Floor Sq. Ft: 1,172
# of Units: 3
# of Stories: 3

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,534
Municipality Name: BELMONT
Acres: 0.15
Zoning Code: R
State Use Description: 3-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 6
Baths: 4.0
Sq. Ft.: 3,636
Stories: 3.0
Lot Size: 6,534 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1907
Year Renovated: 1907
County: Middlesex County
APN: 2378144S

Home facts updated by county records on Jul 29, 2026

Around this home

Schools

Butler Elementary School

Public K-3 • Assigned • 0.1mi

10/10

Belmont High School

Public 9-12 • Assigned • 1.2mi

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
151 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

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

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 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

$1.44M – $1.74M

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Nearby similar homes

OPEN SAT, 12PM TO 2PM

$1,388,800

4 beds2 baths2,834 sq ft

24-26 Baker St, Belmont, MA 02478

$1,549,000

7 beds3 baths2,890 sq ft

45-47 Barnard Ave, Watertown, MA 02472

$1,149,000

4 beds2 baths2,312 sq ft

146-148 Waverley Ave, Watertown, MA 02472

$2,475,000

8 beds7 baths4,776 sq ft

220 Sycamore St, Watertown, MA 02472

$2,550,000

6 beds3.5 baths3,500 sq ft

141-143 Oakley Rd, Belmont, MA 02478

$900,000

5 beds2 baths2,227 sq ft

33 Melendy Ave, Watertown, MA 02472

New listings for sale in 02478

OPEN SAT, 12PM TO 2PM

$1,388,800

4 beds2 baths2,834 sq ft

24-26 Baker St, Belmont, MA 02478

OPEN FRI, 11AM TO 12:30PM

$929,900

3 beds2.5 baths1,845 sq ft

81 Grant Ave #81, Belmont, MA 02478

OPEN SUN, 1:30PM TO 2:45PM

$2,499,000

5 beds3.5 baths2,859 sq ft

45 Wellesley Rd, Belmont, MA 02478

Home values near 403 Trapelo Rd

Data from public records.

Address	Redfin Estimate
406 Trapelo Rd, Belmont, MA 3 Beds \| 1.5 Baths \| 1206 Sq. Ft.	$761,871
416 Trapelo Rd, Belmont, MA 9 Beds \| 3 Baths \| 3552 Sq. Ft.	$1,441,437

Address	Redfin Estimate
408 Trapelo Rd, Belmont, MA 4 Beds \| 2 Baths \| 2326 Sq. Ft.	$1,074,385
407409 Trapelo Rd, Belmont, MA 6 Beds \| 2 Baths \| 2628 Sq. Ft.	$1,242,183

Address	Redfin Estimate
410 Trapelo Rd, Belmont, MA 8 Beds \| 3 Baths \| - Sq. Ft.	$1,336,020
409 Trapelo Rd, Belmont, MA 6 Beds \| 2 Baths \| 2628 Sq. Ft.	$1,261,690

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