Spectacular and wide Sunny side of Commonwealth Avenue building originally designed by Winslow & Bigelow. This prominent turn of the century white stone and granite building is comprised of 2 units: a lower 4 level unit with a private entrance has 3 bedrooms, 3 full and 2 half baths and a penthouse duplex with 4 bedrooms and 3.5 baths. This grand mansion offers a marble clad formal entrance that leads in to an ultra wide and ultra deep parlor level. Gracious entertaining spaces, this banquet size parlor offers 3 marble mantle fireplaces, tall ceilings, oversized windows, many original moldings, Bridal staircase finished with marble, 2nd level wood paneled study and grand scale throughout. A full staircase and a large head house in place for potential front & rear decks. Keep as 2 units or combine into a magnificent single family residence with 3 Full Direct Access Parking Spaces!
| Units | 2 |
| Living area | 12,004 sqft |
| Lot size | 3,237 sqft |
| Year built | 1881 |
| Price / sqft | $875 |
| County | Suffolk |
| MLS # | 73431111 |
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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 12,004 sqft of living area, built in 1881.
At a list price of $13,000,000 across 2 units, that works out to roughly $6,500,000 per unit.
At $13,000,000 for 12,004 sqft, that's about $875 per square foot.
285 Commonwealth Ave, Boston MA 02115 is in Boston, Suffolk County, MA 02115.

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.