Google street view image for 47 Porter Rd #45, Cambridge, MA 02140

OFF MARKET

$1,454,843

•

3 ba

•

2,540

sq ft

47 Porter Rd #45, Cambridge, MA 02140

About this home

47 Porter Rd #45 is a 2,540 square foot multi-family home on a 2,178 square foot lot with 3 bedrooms and 3 bathrooms. Based on Redfin's Cambridge data, we estimate the home's value is $1,454,843.

Multi-familyProperty Type

1894Year Built

2,178 sq ftLot Size

$573Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,454,843

$17K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 23.7% lower than the average sale price ($1.91M) of 6 comparable homes.

SOLD JUN 18, 2026
$2,700,000
A
4 beds3 baths2,701 sq ft
12 Gray Gdns W, Cambridge, MA 02138
SOLD AUG 6, 2026
$2,225,000
B
4 beds3 baths2,711 sq ft
15 Park Ave, Somerville, MA 02144
SOLD APR 15, 2026
$1,200,000
C
5 beds3 baths2,192 sq ft
20 Mossland St, Somerville, MA 02144
SOLD JUL 13, 2026
$930,000
D
4 beds2 baths2,153 sq ft
8 Parker Pl, Somerville, MA 02143
SOLD FEB 24, 2026
$2,200,000
E
4 beds2.5 baths2,226 sq ft
7 Cypress St, Cambridge, MA 02140
SOLD JUN 5, 2026
$2,182,750
F
5 beds3 baths2,558 sq ft
20 Beech St, Cambridge, MA 02140

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

Earn from this home

Sell

$1,381,741

Est. take-home

List your home with Redfin and save $7,274

Market trends in 02140, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.0%

+1.3% MoM

Median sale price

$1.5M

$220K MoM

Avg. days on market

21d

6 days MoM

Recently sold homes

16 MoM

New listings for sale

$439,500
Studio1 bath433 sq ft
6 Washington Ave #11, Cambridge, MA 02140
$1,825,000
7 beds2.5 baths2,988 sq ft
26-28 Porter Rd, Cambridge, MA 02140
$4,595,000
6 beds4 baths4,255 sq ft
140 Upland Rd, Cambridge, MA 02140
See all

Provided by Redfin

Sale history for 47 Porter Rd #45

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

Year

Property tax

Land + Additions

Assessment*

2025

$9,154 (+26.9%)

$634,200 + $807,300

$1,441,500

2024

$7,212 (+4.2%)

$682,100 + $536,200

$1,218,300

2023

$6,918 (+3.4%)

$697,500 + $483,000

$1,180,500

2022

$6,693 (+2.2%)

$694,100 + $436,500

$1,130,600

2021

$6,546 (+4.3%)

$679,400 + $439,600

$1,119,000

2020

$6,275 (+8.0%)

$672,600 + $418,700

$1,091,300

2019

$5,809 (+2.8%)

$583,600 + $394,300

$977,900

2018

$5,650 (−1.9%)

$540,600 + $357,600

$898,200

2017

$5,762 (+4.6%)

$516,000 + $371,900

$887,900

2016

$5,510 (+8.7%)

$445,400 + $342,900

$788,300

2015

$5,071 (+7.1%)

$350,100 + $298,400

$648,500

2014

$4,737 (−1.1%)

$291,800 + $273,500

$565,300

2013

$4,790 (+2.1%)

$291,800 + $261,300

$553,100

2012

$4,690 (+3.9%)

$291,800 + $261,300

$553,100

2011

$4,513

$291,800 + $261,300

$553,100

2010

$4,513 (+3.0%)

$291,800 + $261,300

$553,100

2009

$4,382

$303,700 + $275,900

$579,600

Tax history for 47 Porter Rd #45

Year

Property tax

Land + Additions

Assessment*

2025

$9,154 (+26.9%)

$634,200 + $807,300

$1,441,500

2024

$7,212 (+4.2%)

$682,100 + $536,200

$1,218,300

2023

$6,918 (+3.4%)

$697,500 + $483,000

$1,180,500

2022

$6,693 (+2.2%)

$694,100 + $436,500

$1,130,600

2021

$6,546 (+4.3%)

$679,400 + $439,600

$1,119,000

2020

$6,275 (+8.0%)

$672,600 + $418,700

$1,091,300

2019

$5,809 (+2.8%)

$583,600 + $394,300

$977,900

2018

$5,650 (−1.9%)

$540,600 + $357,600

$898,200

2017

$5,762 (+4.6%)

$516,000 + $371,900

$887,900

2016

$5,510 (+8.7%)

$445,400 + $342,900

$788,300

2015

$5,071 (+7.1%)

$350,100 + $298,400

$648,500

2014

$4,737 (−1.1%)

$291,800 + $273,500

$565,300

2013

$4,790 (+2.1%)

$291,800 + $261,300

$553,100

2012

$4,690 (+3.9%)

$291,800 + $261,300

$553,100

2011

$4,513

$291,800 + $261,300

$553,100

2010

$4,513 (+3.0%)

$291,800 + $261,300

$553,100

2009

$4,382

$303,700 + $275,900

$579,600

*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: 984

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 11

Exterior

Exterior Information
Physical Condition: Good
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 2,540
Gross Sq. Ft: 4,126
Ground Floor Sq. Ft: 1,024
# of Units: 3
# of Stories: 3

Lot Information
# of Buildings: 1
Land Sq. Ft: 2,178
Municipality Name: CAMBRIDGE
Acres: 0.05
Zoning Code: B
State Use Description: 3-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,540
Stories: 3.0
Lot Size: 2,178 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1894
Year Renovated: —
County: Middlesex County
APN: 412350

Home facts updated by county records on Jul 16, 2026

Around this home

Schools

Peabody School

Public PreK-5 • Assigned • 0.4mi

7/10

Rindge Avenue Upper School

Public 6-8 • Assigned • 0.4mi

8/10

Cambridge Rindge and Latin School

Public 9-12 • Assigned • 1.1mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Despite new zoning laws encouraging housing production, Cambridge remains a Seller's market driven by pent-up demand and a constant influx of buyers. Because it is a historic, built-out city, there is little new housing to replace existing...
2 months ago • Cambridge
Benjamin Ginsburg
Redfin Premier agent
152 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

6/10 Heat Factor

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

6/10 Wind Factor

63% chance of strong winds in next 30 years

3/10 Air Factor

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

Provided by First Street

Historical weather

Cambridge, MA • 02140

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 – $1.67M

Reach more buyers when you sell with Redfin. Save up to $14,548 in fees. 3 minutes to get started.

Get a free, detailed breakdown of how we calculated your estimate.

Nearby similar homes

$1,750,000

6 beds3 baths3,096 sq ft

5 Partridge Ave, Somerville, MA 02145

$1,750,000

8 beds3 baths3,787 sq ft

452-454 Broadway, Somerville, MA 02145

$1,195,000

8 beds3 baths3,212 sq ft

33 Beacon St, Somerville, MA 02143

$1,775,000

9 beds3 baths4,426 sq ft

15 Atherton St, Somerville, MA 02143

3D WALKTHROUGH

$1,449,000

3 beds3.5 baths2,000 sq ft

5-7 Whitman St, Somerville, MA 02144

$1,695,000

6 beds3 baths3,645 sq ft

24 Linden Ave, Somerville, MA 02143

New listings for sale in 02140

$439,500

Studio1 bath433 sq ft

6 Washington Ave #11, Cambridge, MA 02140

$1,825,000

7 beds2.5 baths2,988 sq ft

26-28 Porter Rd, Cambridge, MA 02140

$4,595,000

6 beds4 baths4,255 sq ft

140 Upland Rd, Cambridge, MA 02140

Home values near 47 Porter Rd #45

Data from public records.

Address	Redfin Estimate
39 Porter Rd, Cambridge, MA 6 Beds \| 5 Baths \| 2277 Sq. Ft.	$1,791,329
55 Porter Rd, Cambridge, MA 5 Beds \| 2 Baths \| 2474 Sq. Ft.	$1,564,002

Address	Redfin Estimate
43 Porter Rd Apartment 41, Cambridge, MA 5 Beds \| 3 Baths \| 2532 Sq. Ft.	—
4 Porter Park Apartment 2, Cambridge, MA 6 Beds \| 3 Baths \| 2379 Sq. Ft.	$1,531,220

Address	Redfin Estimate
51 Porter Rd, Cambridge, MA 5 Beds \| 3.5 Baths \| 2480 Sq. Ft.	$1,646,191
67 Porter Rd Apartment 1, Cambridge, MA 2 Beds \| 1 Baths \| 935 Sq. Ft.	$756,938

More real estate resources

Cities
Minor Civil Divisions
Neighborhoods
Zip Codes
Popular Searches

Boston homes for sale
Newton homes for sale
Quincy homes for sale

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.

02155 homes for sale
02138 homes for sale
02140 homes for sale
02129 homes for sale
02135 homes for sale

Houses for rent in Cambridge	Agents near me	Quincy, MA homes for sale	Cambridge 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	Cambridge Property Records
Condos for sale near me	Lexington, MA homes for sale	MA New Listings