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Andrew Goldberg

I'm Andrew Goldberg, a Boston real estate advisor specializing in first-time buyers across Greater Boston. I guide you A to Z—from first search to closing day.

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  • 10 Lincoln St, Newton, MA, 02461
  • (617) 256-7438
  • andrew@commonwealthstandard.com

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Commonwealth Standard Realty Advisors

© 2026 Andrew Goldberg. All rights reserved.
Equal Housing Opportunity. Information deemed reliable but not guaranteed.

  1. Home
  2. Listings
  3. 21 Hosmer St, Boston, MA 02126
Active
104 Days on market
21 Hosmer St Boston — Photo 1 of 42

21 Hosmer St Boston — Photo 1 of 42

Recent Drop: $51,000

$1,350,000
$1,299,000

$1,299,000

21 Hosmer St, Boston, MA 02126

Boston, MA 02126 — Mattapan

Beds

9

Baths

3

SqFt

4,056

Style

3 Family

Built

1900

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!

Market Value Analysis

This Property
Size (SqFt) →Price →
This Property$320/sqft
Local Avg (Boston)$351/sqft
9% BelowMarket Average

* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Boston, MA.

Property Details

Financials

Original Price$1,350,000
Annual Taxes$11,949

Parking

Garage0
Off-Street6

Interior Specifications

Total Rooms18
FireplacesNone
FlooringHardwood
BasementFull

Climate & Utilities

Heating--
Cooling--
WaterPublic
SewerPublic Sewer

Building & Exterior

ConstructionSee Remarks
RoofShingle
FoundationOther
ZoningR3

Property & Lot

Acres0.1
SqFt Lot4,225
Lot FeaturesOther

Neighborhood

Public Transportation • Shopping • Pool • Tennis Court(s) • Park • Walk/Jog Trails

Geography

Property History

Price Drop
$1,299,000

Was $1,350,000

Jun 4, 2026

MLS® 73519103

Listed
$1,350,000

May 14, 2026

MLS® 73519103

Population

26,583

U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)

Median Household Income

$66K

U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)

Renter-Occupied Homes

56.5%

U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)

New Construction Permits — Suffolk County

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)

Full Boston, MA market report ZIP 02126 market data
Listing Provided By

Listing Agent: Markese Daise

Listing Office: Stony Brook & Lennox Realty Advisors

MLS® Number: 73519103

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