Behind a preserved Graham Gund facade, recognized with a Cambridge Historical Commission Preservation Award, a sun-filled townhouse set privately at the rear of the property in the heart of Harvard Square. The exterior is landmarked. Everything inside is new. Across 2,946 SF, the open main level is built for entertaining, with oversized windows, bespoke millwork, an ambient fireplace, and a chef’s kitchen centered on a Taj Mahal quartz island with panel-ready Thermador appliances, all opening to a private deck and courtyard. The top floor is the primary suite with vaulted ceilings, a custom walk-in closet, a spa ensuite, and an adjoining office or den. The second floor offers a second ensuite, a third bedroom, laundry, and a full bath. The finished lower level flexes as a fourth bedroom, guest suite, or office, with full bath, radiant floors, and a media room. Private entrance, hardwired Sonos, CCTV, and parking for one. Minutes to the Charles, two Red Line stops, Whole Foods, and Harvard Square.
This home has been viewed 13 times
Last Checked: November 12th, 2026 at 9:43am (Source: MLS PIN #73577404)
Recently Renovated
Green Features
Air Conditioning
Waterview
Lead Paint Free
General Information for 9B Mt. Auburn Street # B, Cambridge MA 02138
Listing ID73577404
Property TypeCondominium
Price2575000 ($874.07/SqFt)
Building Style2/3 Family
CityCambridge
CountyMiddlesex
MLS AreaHarvard Square
Neighborhood(s)
Total Parking1
Unit Level1
Levels in Unit4
Year Built1910
Year Built SourcePublic Records
Year Renovated2026
Year Built DetailsApproximate,Renovated Since,Finished, Never Occupi
Building Construction StatusReady for Occupancy
ZoningO-2
Unit Features for 9B Mt. Auburn Street # B, Cambridge MA 02138
Approximate Living Area Total2946
Living Area Includes BasementNo
Rooms10
Bedrooms4
Primary En Suite BathroomYes
BasementFull
Cooling1, Split
LaundryArchway
Fireplaces
Outdoor SpaceNo
FlooringTile
Electric
AppliancesRange
Condo Association Features for 9B Mt. Auburn Street # B, Cambridge MA 02138
Complex NameMt. Auburn Collection
Pet PolicyAllowed
Building ManagementDeveloper Advisory Board
Building Construction StatusReady for Occupancy
Number of Units3
Year Built1910
Year Built DetailsApproximate,Renovated Since,Finished, Never Occupi
Year Built SourcePublic Records
Unit Last Renovated2026
WaterPublic
SewerPublic Sewer
Parking Features1
Building Amenities
Disclosures for 9B Mt. Auburn Street # B, Cambridge MA 02138
Lead PaintNone
UFFI
Living Area Includes BasementNo
Living Area Disclosure
Building Area SourceMaster Deed
Special Listing Conditions
ExclusionsDeep Freezer
Compensation Based On
Documents AvailablePerc Test
Financial Information for 9B Mt. Auburn Street # B, Cambridge MA 02138
Association Fee
Optional Fee0
Association Fee IncludesLandscaping
Optional Fee Includes
Association Fee FrequencyMonthly
Assessed Value$4,631,500
Real Estate Tax9999.99
Tax Year2026
Location Information for 9B Mt. Auburn Street # B, Cambridge MA 02138
Neighborhood(s)
MLS AreaHarvard Square
Area AmenitiesWalk/jog Trails
Contact Information for 9B Mt. Auburn Street # B, Cambridge MA 02138