Prime 5,000 +/- square foot level lot in a highly sought-after Cambridge location, offering exceptional opportunity for new construction under new Cambridge guidelines. Ideally positioned between the Charles River and Central Square, this property provides convenient access to vibrant shops, dining, and the MBTA Red Line for an easy commute. Perfectly situated between Harvard University and Massachusetts Institute of Technology, the location offers unparalleled access to world-class institutions and innovation hubs. Enjoy the charm of a residential neighborhood with Dana Square Park just steps away at the end of the block. A rare chance for developers, investors, or end-users to create a custom project in one of Cambridge’s most desirable and well-connected areas, with endless potential in an unbeatable setting.
| Units | 2 |
| Living area | 1,690 sqft |
| Lot size | 5,000 sqft |
| Year built | 1844 |
| Price / sqft | $1,731 |
| County | Middlesex |
| MLS # | 73488857 |
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Listing courtesy of a MLS PIN member office. Listing data © MLS PIN.
Auto-generated from the listing data — richer AI answers coming with the live site.
It is a 2-unit multi-family property with 1,690 sqft of living area, built in 1844.
At a list price of $2,700,000 across 2 units, that works out to roughly $1,350,000 per unit.
At $2,700,000 for 1,690 sqft, that's about $1,731 per square foot.
20 Chalk Street, Cambridge MA 02139 is in Cambridge, Middlesex County, MA 02139.

Justin Rollo is a Broker Associate with Signal Real Estate (MA Lic. #9534264) and a lifelong Massachusetts resident. Over 14 years and hundreds of transactions, he has worked investment properties — multi-families and house-hacking — across Greater Boston full-time. Away from real estate, Justin is a proud dad, youth coach and local school-committee member — and a former professional poker player who still loves golf and following local sports.