11 Brown Street, Cambridge MA 02138

Cambridge, MA 02138 • Harvard Square
$12,995,000
$12,800,000
Est. $71,528/month
Estimate assumptions

20% down, a 30-year loan at 6.5%, and $200/month estimated insurance.

Includes the supplied property-tax and HOA inputs; missing inputs contribute $0. HOA fees with an unspecified frequency are treated as monthly. PMI and closing costs are excluded.

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6
Beds
6.5
Baths
7,258
Sq Ft
$1,764
Price/Sq Ft
0.34
Acres
2024
Year Built
2
Garage Spaces
180
Days on Market
For Sale Price Drop -$195,000 Listed May 11, 2026 • MLS# 73516411 Copied! • Updated Nov 8, 2026

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About this home

Hidden in plain sight. Designed to blend discreetly into its traditional Cambridge neighborhood, 11 Brown Street offers no hint of the extraordinary world within. Its discretion bespeaks a quiet confidence: luxury measured not by outward display, but by the quality of life experienced inside. Conceived in collaboration with Mariana Ibañez, Chair of UCLA’s Department of Architecture and Urban Design, the home unfolds through luminous spaces, sculptural forms, and intimate connections to nature. Generous proportions retain a human scale, while rich natural materials, exquisite craftsmanship, and carefully orchestrated light create an atmosphere both exhilarating and tranquil. As daylight moves through the home, shifting perspectives reveal new moments of wonder. A serene library and upper-level family room offer inviting retreats, while two distinctive fire features bring warmth and drama. Thoughtfully arranged spaces for cooking, dining, and entertaining celebrate the intimate pleasures of gatherings large and small. Sumptuous baths and a private spa with sauna and steam offer restoration, while sophisticated technology works intuitively in the background to enrich daily life. A main-level suite with private entrance provides flexibility for guests or multigenerational living. The garden level offers media and fitness spaces, a second kitchen, and an au pair suite. Indoors and out flow seamlessly into expansive, tree-framed grounds, with unusually long, private views just blocks from Harvard Square. This private oasis reveals its enchantments only to those invited within. A truly extraordinary setting in which to practice the art of living deeply.

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Recently Sold Nearby

Price & Status History

Market Insights

1
Price Changes
65%
Price Range
1
Previous Sales

Property Timeline

↓
Price Reduced
Nov 4, 2026
$12,800,000 $195,000 (-1.5%)
From $12,995,000 to $12,800,000 (-1.5%)
🏠
Listed for Sale
May 11, 2026
$12,995,000
Original listing
Agent: Beth Dickerson Office: Gibson Sotheby's International Realty
Previous Transaction - MLS #72755298
Full transaction history available when tracking began
🏷️
Previously Sold
Mar 26, 2021
$4,550,000
MLS #72755298

Tax History

Year Taxes Assessment
2026 $79,252 $11,881,900

Financial Details

Annual Property Tax
$79,252
Tax Year 2026
Assessed Value
$11,881,900

Facts & Features

2 Car Garage

Home Facts

Type Residential
Style Single Family Residence
Year Built 2024
Living Area 7,258 sq ft
Lot Size 0.34 acres
Bedrooms 6
Full Baths 6
Half Baths 1
Total Rooms 10

Interior

Heating Forced Air, Heat Pump, Natural Gas, Hydro Air
Cooling Heat Pump
Flooring None
Appliances None
Fireplace None
Fireplaces 2
Basement Full, Finished, Walk-out Access, Interior Entry
Laundry None
Features Exercise Room, Game Room, Media Room, Sauna/steam/hot Tub, Wet Bar, Wired For Sound

Exterior

Construction None
Architecture Colonial, Contemporary
Roof Slate, Rubber
Features Deck, Patio, Professional Landscaping, Sprinkler System, Fenced Yard, Garden
Pool None
Spa None
Fencing Fenced/enclosed, Fenced
Patio/Porch Deck, Patio
Garage Spaces 2
Has Garage Yes
Features Detached, Paved Drive, Off Street, Paved
Total Spaces 6
Electric None
Water Public
Sewer Public Sewer
Gas None
Other None
Annual Tax $79,252
Assessed Value $11,881,900
Fee Includes None
Amenities None
Optional Fee Includes None
Lead Paint Unknown
Seller Disclosures Taxes Do Not Reflect Residential Exemption
Possession None
Accepted Financing None
Structure Type []
Sq Ft Source Measured
Documents None
County Middlesex
Total market time (incl. prior listings) 181 days

Property Overview

Property Type
Single Family Residence
Listing Type
For Sale
Year Built
2024
Bedrooms
6
Full Bathrooms
6
Half Bathrooms
1
Living Area
7,258 sq ft
Total Rooms
10

Floor Layout

Interior Features

Flooring:
Appliances:
Interior Features: Exercise Room, Game Room, Media Room, Sauna/Steam/Hot Tub, Wet Bar, Wired for Sound
Windows:
Basement: Full, Finished, Walk-Out Access, Interior Entry
Laundry:
Security:

Construction & Materials

Style: Colonial, Contemporary
Year Built: 2024
Structure Type:
Exterior Materials:
Roof: Slate, Rubber
Foundation: Concrete Perimeter

Utilities & Systems

Heating: Forced Air, Heat Pump, Natural Gas, Hydro Air
Cooling: Heat Pump
Hot Water:
Water Source: Public
Sewer: Public Sewer
Energy Features:

Exterior & Lot

Exterior Features: Deck, Patio, Professional Landscaping, Sprinkler System, Fenced Yard, Garden
Patio & Porch: Deck, Patio
Fencing: Fenced/Enclosed, Fenced
Other Structures:
Lot Features: Cul-De-Sac, Level
Road Surface: Paved

Parking & Garage

Garage Spaces: 2
Total Parking Spaces: 6
Parking Features: Detached, Paved Drive, Off Street, Paved

Special Features

Fireplaces: 2
Fireplace Type:
Community Amenities: Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Bike Path, Conservation Area, Highway Access, House of Worship, Marina, Private School, Public School, T-Station, University

Nearby Schools

School information not available for this location.

Monthly Payment Calculator

Monthly Payment
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Principal, interest, taxes & insurance
Loan Amount
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After down payment
Total Interest
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Over life of loan
Total Cost
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Including down payment
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Down: $0
%

Monthly Payment Breakdown

Principal & Interest $0
Property Tax $6,604
Homeowners Insurance $200
PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0
Total principal paid $0
Total interest paid $0

Rate Impact

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$0/mo
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Current Rate
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Cost $0/mo

Payment Over Time

Interest
Principal
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.

Location

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Neighborhood

Harvard Square

11 Brown Street, Cambridge MA 02138

Cambridge, MA 02138

Listing Information

Listing Agent Beth Dickerson
Listing Office Gibson Sotheby's International Realty
Office Phone 617-375-6900
Agent MLS ID BB904055
Office MLS ID BB5919
Listing Data Updated Nov 8, 2026 3:07 AM EST
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.

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