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6 Beds
7 Baths
7,258 sqft

$12,800,000

11 Brown Street , Cambridge MA, 02138

Price per sqft$1,763.57
Built in1916
Property size7,258 sqft
Property typeResidential

Overview

Active

Listed Apr 14, 2026

Updated 6 days ago

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.

$85,159/mo

Est. mortgage payment based on a $12,800,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
73516411
Available since
April 14, 2026

Interior Features

Bedrooms
6
Bathrooms
7
Fireplace
Yes
Basement
Yes

Exterior Features

Lot Size
0.34 Acres

Other Property Details

Taxes
$72,881
Tax Frequency
Annually
Garage
Yes

 Courtesy of Beth Dickerson | Gibson Sotheby's International Realty

Based on information from DASH - Sotheby's International Realty (SIR) as of 11/6/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. 

©2026 DASH - Sotheby's International Realty (SIR). All rights reserved. 

Data last updated 5:14 AM UTC, 11/6/2026

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