21 Hosmer St Boston, MA $ 1,350,000
21 Hosmer St
$ 1,350,000
Recently Listed
Open House 5/16 1pm - 2pm
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21 Hosmer St

Boston, MA, 02126
$ 1,350,000
Bedrooms9 Baths3.0 Sq 4,056

Monthly Estimate*

$ 8,312

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Multi-Family Home for sale in Boston, MA

for $1,350,000 with 9 bedrooms and 3 full baths. This 4,056 square foot home was built in 1900 on a lot size of 0.1.

A rare, fully turn-key Mattapan multi-family delivering scale, flexibility, and immediate income in a high-demand Boston market. This oversized 3-family features three expansive 3 bed/1 bath units, each with layouts that can easily function as 4-bedroom apartments maximizing rental potential. Designed for today’s buyer, the property offers central air, updated electrical, hardwood floors, modern kitchens & baths, new siding, newer rubber roof, & decks throughout. The building is well-maintained with a strong in-place rent roll, creating a true plug-and-play investment or an ideal opportunity for an owner-occupant to offset their mortgage with substantial income. ***NOTE***Additional upside: the identical neighboring property at 19 Hosmer St is also available...purchase one or secure both for a scalable $240K+ gross annual rent play. Positioned near public transit, retail, and many amenities, this is a high-performing Boston multi-family with long-term appreciation and income growth!

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Open House

5/16/2026 1:00 PM - 2:00 PM
5/17/2026 1:00 PM - 2:00 PM
21 Hosmer St Boston, MA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Multi-Family Active

Price

$ 1,350,000

Bedrooms

9

Full Bath

3

Property Type

Multi-Family

Taxes

$ 11,949

Style

3 Family

Lot Size

0.1

Year Built

1900

Town/City

Boston

County/Region

Suffolk

MLS | Web ID

73519103

List By
Markese Daise

Listing Agent

Stony Brook & Lennox Realty Advisors

Broker

Affordability Calculator

$9,308
Per Month
89%
11%
0%
Monthly Principal & Interest
$8,312
Monthly Property Taxes
$996
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Pricing History
DatePricePrice ChangeDescription
5/14/2026$1,350,000 Listed Price

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21 Hosmer St, Boston, MA, 02126 is a Multi-Family Home for sale at $1,350,000 with 4,056 sqft and a lot size of 0.1. 21 Hosmer St has 9 bedrooms, 3.0 baths, and was built in 1900. The property's zip code is 02126 which is in Boston, MA