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About this property
A beautifully renovated (2016) brownstone two-family, offering 2 duplex units ideally located in the heart of Central Square, Cambridge. A rare opportunity to purchase two thoughtfully designed residences within the same building, these homes combine modern finishes with classic brownstone charm. Unit 1 features over 1,095 square feet with 3 bedrooms and 2.5 bathrooms across two levels and yard access.Including hardwood floors, recessed lighting, fireplace living room, eat-in kitchen with large island, granite countertops, stainless steel appliances, private backyard, and in-unit laundry. Unit 2 spans approximately 1,184 square feet with 2 bedrooms and 2.5 bathrooms, featuring cathedral ceilings, open-concept living, beautifully appointed kitchen, private deck, spacious primary suite, and in-unit laundry. Both homes include smart home video doorbell technology and are ideally located near Central Square, MIT, Harvard, the Charles River, Red Line T, restaurants, cafés, and shops.
Property details
| Units | 2 |
| Living area | 2,279 sqft |
| Lot size | 1,208 sqft |
| Year built | 1892 |
| Price / sqft | $954 |
| County | Middlesex |
| MLS # | 73518041 |
Listing status
| Days on market | 23 days |
| Listed on | May 13, 2026 |
Taxes & financials
| Annual property tax | $13,379 |
| Tax year | 2025 |
| Assessed value | $2,107,000 |
| Zoning | BB-CSQ |
| Gross income (actual) | $115,140/yr |
| Net operating income (actual) | $115,140/yr |
| Total actual rent | $9,595/mo |
Building & lot
| Stories | 4 |
| Total rooms | 10 |
| Lot size | 0.03 acres |
| Garage spaces | 0 |
| Parking spaces | 0 |
| Parking | On Street |
| Basement | Finished |
| Foundation | Other |
| Roof | Rubber |
Utilities & systems
| Sewer | Public Sewer |
| Water | Public |
Location
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Listing courtesy of Gibson Sotheby's International Realty — Lisa Godwin. Listing data © MLS PIN.
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Questions & answers
Auto-generated from the listing data — richer AI answers coming with the live site.
How many units does 209 Green St, Cambridge MA 02139 have?
It is a 2-unit multi-family property with 2,279 sqft of living area, built in 1892.
How long has 209 Green St, Cambridge MA 02139 been on the market?
209 Green St, Cambridge MA 02139 has been listed for 23 days (since May 13, 2026).
What is the estimated cap rate on this 2-family in Cambridge?
Based on area median rents, the estimated cap rate is about 2.5%, with a Signal Score of 53/100. These are directional estimates, not an appraisal.
What is the price per unit?
At a list price of $2,174,000 across 2 units, that works out to roughly $1,087,000 per unit.
What are the property taxes on 209 Green St, Cambridge MA 02139?
Annual property taxes are $13,379 (2025), on an assessed value of $2,107,000.
What is the price per square foot?
At $2,174,000 for 2,279 sqft, that's about $954 per square foot.
Where is this property located?
209 Green St, Cambridge MA 02139 is in Cambridge, Middlesex County, MA 02139.
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