
172 Brattle Street Cambridge — Photo 1 of 42
Recent Drop: $1,100,000
$15,700,000
172 Brattle Street, Cambridge, MA 02138
Cambridge, MA 02138
Beds
7
Baths
8.5
SqFt
7,737
Style
Single Family
Built
1880
Modern luxury meets history in this completely renovated home on coveted Brattle St in Harvard Square. Completely transformed by a local respected builder, this property seamlessly blends historic charm w/ modern convenience in its impeccable design and finishes. The main floor offers a grand staircase, high ceilings, spacious living and dining rooms, chef's kitchen w/ top appliances and adjacent family room, an oversized mudroom off the attached garage and 2 half baths. The 2nd level has a luxurious primary suite w/ spa-like bath and gracious dressing room, 5 ensuite bedrooms (or offices) and a large laundry room. The top floor hosts a versatile office/loft space and a half bath. The lower level is fully equipped w/ a gym, game room, family room, full bath, ample storage and guest suite w/ direct exterior access. The outdoor and indoor spaces blend seamlessly for easy living, w/ a spacious patio and beautiful yard designed by a celebrated landscape architect. A true Harvard Square gem
Market Value Analysis
* Analysis is based on 23 actively listed and recently sold comparable properties strictly within Cambridge, MA.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Gas Water Heater • Range • Dishwasher • Disposal • Microwave • Refrigerator • ENERGY STAR Qualified Refrigerator • Wine Refrigerator • ENERGY STAR Qualified Dishwasher • Range Hood • Instant Hot Water
Neighborhood
Public Transportation • Shopping • Tennis Court(s) • Park • Walk/Jog Trails • Sidewalks
Geography
Property History
$15,700,000
Was $16,800,000
Sep 26, 2025
MLS® 73342079
$16,800,000
Mar 6, 2025
MLS® 73342079
Population
38,509
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
Median Household Income
$120K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
Renter-Occupied Homes
58.1%
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)
ADU Potential
Massachusetts allows one accessory dwelling unit by right in single-family zoning districts statewide (M.G.L. c. 40A §3; 760 CMR 71.00, effective Feb 2025). Estimated maximum ADU size for this property: 900 sq ft (the lesser of 900 sq ft or half the 7,737 sq ft principal dwelling). Lot size: 14,826 sq ft.
Based on listing data, which indicates the property type — not the zoning district. Local dimensional, septic (Title 5), and historic-district requirements still apply. Not legal advice — verify with the municipality.
Listing Agent: Maggie Gold Seelig
Listing Office: MGS Group Real Estate LTD
MLS® Number: 73342079
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