Active
27 Days on market
24 Union St Cambridge — Photo 1 of 10

24 Union St Cambridge — Photo 1 of 10

$6,950,000

24 Union St, Cambridge, MA 02141

Cambridge, MA 02141

Beds

12

Baths

12.5

SqFt

4,355

Style

3 Family

Built

1886

East Cambridge 3-family on a scarce rectangular 6,333 sf lot with one street frontage on quiet one-way Union St and three sides at neighboring lots. Current C-1 dimensional table uses about a 10 ft front setback on the street side and about a 5 ft side setback, so a single-frontage lot can use more of the parcel than a lot with two street setbacks; buyer must verify all setbacks with the City. One deed: 24 / 24A / 24B. Short walk to MIT and Kendall Square biotech (Moderna, Pfizer). Assessor: 18 rooms, 9 beds, 3.5 baths; living 4,355 sf (first floor 2,526 + finished upper 1,829); unfinished basement 2,526 sf; wood deck 363 sf; gross 7,244 sf. Renovated under permit BLDC-16364-2022; Luna plans attached. Current layout: 4 beds and 4 full baths per unit (12 / 12). Occupied income property; NFPA-13D sprinklers in each unit. Buyer must verify with Cambridge CDD and ISD current C-1 rules, including 4-story base height or up to 6 stories / 74 ft with inclusionary housing on lots of 5,000 sf or more, Lodging House use, basement treatment, occupancy, licensing, and parking. No off-street parking; city street permit only, not guaranteed. Sold as-is. Seller will not repair or cut price for inspection. Seller will consider closing-cost concessions up to $120,000.

Key facts

It was listed on September 7, 2026. The price has gone up from an original $6,700,000 to $6,950,000, most recently on September 8, 2026. The annual property taxes are $16,932 (2026 tax year). It sits on a 0.15-acre (6,333 sq ft) lot.

Market Value Analysis

This Property
Size (SqFt) →Price →
This Property$1596/sqft
Local Avg (Cambridge)$765/sqft
109% AboveMarket Average

* Analysis is based on 23 actively listed and recently sold comparable properties strictly within Cambridge, MA.

Property Details

Financials

Original Price$6,700,000
Annual Taxes$16,932

Parking

Garage0
Off-Street0

Interior Specifications

Total Rooms15
Fireplaces2
Flooring--
BasementFull

Climate & Utilities

HeatingHot Water, Natural Gas
CoolingWindow Unit(s)
WaterPublic
SewerPublic Sewer

Building & Exterior

Construction--
Roof--
FoundationConcrete Perimeter, Stone, Brick/Mortar
ZoningC-1

Property & Lot

Acres0.15
SqFt Lot6,333
Lot FeaturesCleared, Level

Neighborhood

Public Transportation • Shopping • Park

Geography

Property History

Price Increase
$6,950,000

Was $6,700,000

Sep 8, 2026

MLS® 73572529

Listed
$6,700,000

Sep 7, 2026

MLS® 73572529

Questions about this home

When was 24 Union St, Cambridge listed?

24 Union St, Cambridge was listed on September 7, 2026.

Has the price of 24 Union St, Cambridge changed?

The price has gone up from an original $6,700,000 to $6,950,000, most recently on September 8, 2026.

What are the property taxes for 24 Union St, Cambridge?

The annual property taxes for 24 Union St, Cambridge are $16,932 (2026 tax year).

How big is the lot at 24 Union St, Cambridge?

24 Union St, Cambridge sits on a 0.15-acre (6,333 sq ft) lot.

What is the status of 24 Union St, Cambridge?

24 Union St, Cambridge is actively listed for sale.

Population

14,517

U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)

Median Household Income

$127K

U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)

Renter-Occupied Homes

74.5%

U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)

New Construction Permits — Middlesex County

2,698 housing units permitted in the last 12 months (+3% vs the prior 12 months) — 1,713 in 5+ unit buildings

U.S. Census Bureau, Building Permits Survey (through Jul '26)

Listing Provided By

Listing Agent: Darin Thompson

Listing Office: Stuart St James, Inc.

MLS® Number: 73572529