$9,950,000
About this home
21 Notre Dame Avenue is a stand-alone condominium built for organizations that value presence, permanence, and access. Previously occupied by the Banneker Charter School, the property carries an established educational and community-serving legacy in a Cambridge location where independent facilities are tightly held. On-site parking is a practical advantage for employees, visitors, families, and program participants. The building’s free-standing configuration allows an owner-user to establish a visible identity and control its environment in a way that multi-tenant settings often cannot. Ideal for educational, nonprofit, religious, or related institutional use, the property places a long-term owner within reach of Cambridge neighborhoods, transit, universities, and Greater Boston’s innovation economy.
Property details
- MLS #
- 73584790
- Property type
- Commercial Sale
- Subdivision
- N/A
- Status
- Active
- Days on market
- 2
- On market date
- September 30, 2026
- Stories
- N/A
- Total bathrooms
- N/A
- Garage spaces
- N/A
- Parking spaces
- N/A
- Lot size
- N/A
Location
Get directions →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).
- Enrollment
- 329
- Student:teacher ratio
- 15.7:1
- District
- Benjamin Banneker Charter Public (District)
- Enrollment
- 262
- Student:teacher ratio
- 8.2:1
- District
- Cambridge
- Enrollment
- 12
- Student:teacher ratio
- 4.0:1
- District
- Medford
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).
Market position
How this listing compares to current activity in Cambridge, from live MLS data.
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Data source: Listing information provided by MLS Property Information Network via Trestle/CoreLogic. Last updated 2 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.