
12 Auburn St Boston — Photo 1 of 20
Recent Drop: $441,000
$2,549,000
Boston, MA 02129 — Charlestown
Beds
3
Baths
3.5
SqFt
3,360
Style
Single Family
Built
1880
Scale, history, and value rarely align like this on the flat of Charlestown. Spanning four levels and 3,360 square feet, this 1880 brick brownstone offers more space, more parking, and more fireplaces than nearly anything else in the neighborhood today, at a price that leaves real room in the budget. The main and upper levels live as a gracious single-family home with an updated kitchen, formal dining room, four fireplaces, and a private deck and patio. A garden-level suite with its own entry adds flexibility as a guest suite or office, plus a clear path to reconfiguring the upper floors into the two-bedroom, single-level layout Charlestown families want. A deeded heated garage plus two more spaces round out a rare three-car footprint near Main Street, the Navy Yard, and the waterfront. A newly improved price on a home with room to make it your own.
* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Boston, MA.
Gas Water Heater
Public Transportation • Shopping • Park • Walk/Jog Trails • Medical Facility • Laundromat
Flooring - Hardwood, Recessed Lighting, Lighting - Sconce, Lighting - Overhead, Crown Molding, Decorative Molding, Pocket Door
Was $2,790,000
Jul 22, 2026
MLS® 73504174
Was $2,990,000
Jun 23, 2026
MLS® 73504174
Apr 20, 2026
MLS® 73504174
20,032
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
$157K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
49.5%
U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)
2,527 housing units permitted in the last 12 months (+37% vs the prior 12 months) — 2,269 in 5+ unit buildings
U.S. Census Bureau, Building Permits Survey (through Jun '26)
Massachusetts allows one accessory dwelling unit by right in single-family zoning districts statewide (M.G.L. c. 40A §3; 760 CMR 71.00, effective Feb 2025). Estimated maximum ADU size for this property: 900 sq ft (the lesser of 900 sq ft or half the 3,360 sq ft principal dwelling). Lot size: 1,946 sq ft.
Based on listing data, which indicates the property type — not the zoning district. Local dimensional, septic (Title 5), and historic-district requirements still apply. Not legal advice — verify with the municipality.
Listing Agent: Michael Carucci
Listing Office: Gibson Sotheby's International Realty
MLS® Number: 73504174







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