3 Family at 24 Union St, Cambridge MA 02141, Cambridge
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 2 of 10
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 3 of 10
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 4 of 10
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 5 of 10
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 6 of 10
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 7 of 10
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3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 9 of 10
3 Family at 24 Union St, Cambridge MA 02141, Cambridge, photo 10 of 10
10 photos

$6,950,000

24 Union St, Cambridge MA 02141
Cambridge, MA 02141
Listed by Darin Thompson
Bedrooms
12
Bathrooms
12.5
Living area
4,355 sqft
Year built
1886

About this home

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.

Highlights

Fireplace

Property details

MLS #
73572529
Property type
3 Family
Subdivision
N/A
Status
Active
Days on market
31
On market date
September 7, 2026
Stories
9
Total bathrooms
12.5
Garage spaces
N/A
Parking spaces
N/A
Lot size
0.15 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card (e.g. NC Dept. of Public Instruction, SC Report Card).

Elementary
Cambridgeport
0.14 mi away · Grades -1-5
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
252
Student:teacher ratio
9.3:1
District
Cambridge
Middle
Cambridge Street Upper School
0.26 mi away · Grades 6-8
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
279
Student:teacher ratio
7.5:1
District
Cambridge
HighCharter
Community Charter School of Cambridge
0.53 mi away · Grades 6-12
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
288
Student:teacher ratio
9.3:1
District
Community Charter School of Cambridge (District)

Walkability

Blended score for Cambridge's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

90
Highly walkable
out of 100
EPA National Walkability Index
16.7 / 20 -- Most walkable
Google Places amenity density
100 / 100
Restaurants & cafes20
Grocery stores20
Parks20
Schools20
Transit stops20
Pharmacies13

Market position

How this listing compares to current activity in Cambridge, from live MLS data.

On the market 31 days -- 60 fewer days than Cambridge's current average of 91 days.
For reference, the median list price across 1,013 active listings in Cambridge right now is $7,950.

Mortgage calculator

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Est. monthly payment
$42,004/mo
$1,390,000 down
$5,560,000 loan
Principal & interest$36,062
Property tax (est.)$5,792
Home insurance (est.)$150

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Data source: Listing information provided by MLS Property Information Network via Trestle/CoreLogic. Last updated 22 days ago.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.