For sale

$875,000

129 M St #1, South Boston, MA 02127

4beds

1,074sqft

$6,062/mo

Get pre-qualified

Condominium

Built in 1890

-- sqft lot

$858,400 Zestimate^®

$815/sqft

$325/mo HOA

What's special

Central air conditioningPrivate deckIn-unit laundryUpdated kitchenExclusive backyardGranite countertopsHardwood floors throughout

Turnkey South Boston investment opportunity or ideal owner-occupant home. This renovated 4-bedroom, 1.5-bath lower duplex sits between M Street Beach and the shops, restaurants, and energy of E Broadway retail options. Offering over 1,000 square feet across two levels, the home features a smart, flexible layout with two bedrooms and a bathroom on each floor, making it well-suited for investors, roommates, or buyers looking for extra work-from-home space. The updated kitchen features stainless steel appliances, granite countertops, and excellent functionality. A true standout is the private deck and exclusive backyard, creating rare outdoor space for summer barbecues, gardening, entertaining, or relaxing after the beach. In-unit laundry, hardwood floors throughout, central air conditioning, and move-in-ready condition complete this South Boston gem.

84 days
820
18

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 4
Bathrooms: 2
Full bathrooms: 1
1/2 bathrooms: 1

Heating

Forced Air

Cooling

Central Air

Appliances

Included: Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
Laundry: In Unit

Features

Flooring: Wood, Tile
Has basement: Yes
Number of fireplaces: 1

Interior area

Total structure area: 1,074
Total interior livable area: 1,074 sqft
Finished area above ground: 574
Finished area below ground: 500

Property

Features

Patio & porch: Deck - Wood
Exterior features: Deck - Wood, Fenced Yard, Garden
Fencing: Fenced
Waterfront features: Bay, Harbor, Ocean, Direct Access, Walk to, 3/10 to 1/2 Mile To Beach, Beach Ownership(Public)

Lot

Size: 1,074 Square Feet

Details

Parcel number: W:06 P:02551 S:002,4394794
Zoning: CD

Construction

Type & style

Home type: Condo
Property subtype: Condominium

Materials

Frame

Condition

Year built: 1890

Utilities & green energy

Sewer: Public Sewer
Water: Public
Utilities for property: for Gas Range

Community & HOA

Community

Security: Intercom

HOA

Services included: Water, Sewer, Insurance, Maintenance Structure, Snow Removal
HOA fee: $325 monthly

Location

Region: South Boston

Financial & listing details

Price per square foot: $815/sqft
Tax assessed value: $823,900
Annual tax amount: $9,541
Date on market: 6/9/2026

Estimated market value

$858,400

$815,000 - $901,000

$5,826/mo

Price history

Date	Event	Price
6/9/2026	Listed for sale	$875,000+2.9%$815/sqft
Source: MLS PIN #73532517 Report a problem
5/24/2023	Listing removed	--
Source: MLS PIN #73115032 Report a problem
5/23/2023	Listed for rent	$5,300+6%$5/sqft
Source: MLS PIN #73115032 Report a problem
11/16/2022	Listing removed	$850,000$791/sqft
Source: MLS PIN #73039826 Report a problem
9/22/2022	Listed for sale	$850,000+7.4%$791/sqft
Source: MLS PIN #73039826 Report a problem
9/20/2022	Listing removed	--
Source: Zillow Rental Network Premium Report a problem
8/29/2022	Price change	$5,000-5.7%$5/sqft
Source: Zillow Rental Network Premium #72982654 Report a problem
8/2/2022	Price change	$5,300-3.6%$5/sqft
Source: Zillow Rental Network Premium #72982654 Report a problem
6/3/2022	Listing removed	--
Source: MLS PIN #72783679 Report a problem
6/1/2022	Listed for rent	$5,500$5/sqft
Source: Zillow Rental Network Premium #72982654 Report a problem
3/12/2021	Sold	$791,500-0.9%$737/sqft
Source: Public Record Report a problem
2/10/2021	Pending sale	$799,000$744/sqft
Source: MLS PIN #72783679 Report a problem
2/9/2021	Listed for sale	$799,000+49.3%$744/sqft
Source: MLS PIN #72783679 Report a problem
8/7/2015	Sold	$535,000+7%$498/sqft
Source: Public Record Report a problem
7/1/2015	Pending sale	$499,900$465/sqft
Source: Redfin Corp. #71858996 Report a problem
7/1/2015	Listed for sale	$499,900+0.4%$465/sqft
Source: Redfin Corp. #71858996 Report a problem
8/15/2012	Sold	$498,000+15.3%$464/sqft
Source: Agent Provided Report a problem
6/3/2005	Sold	$432,000+15.2%$402/sqft
Source: LINK #46163 Report a problem
5/23/2003	Sold	$375,000$349/sqft
Source: LINK #36037 Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$9,541 +10.2%	$823,900 +3.8%
2024	$8,654 +3.6%	$793,900 +2.1%
2023	$8,354 +2.7%	$777,800 +4%
2022	$8,135 +19.6%	$747,700 +17.3%
2021	$6,802 +4%	$637,500 +2.9%
2020	$6,543 +7.2%	$619,600 +7%
2019	$6,105 +5.6%	$579,200 +5%
2018	$5,780 +346.2%	$551,500 +7%
2017	$1,295 -75%	$515,500 +9.4%
2016	$5,181 -3.9%	$471,000 +5.8%
2015	$5,393 +12.5%	$445,300 +22.1%
2013	$4,792 +5.2%	$364,700 +4.3%
2012	$4,557 +3.3%	$349,500 +1.3%
2011	$4,411 +2.5%	$344,900 -4.8%
2010	$4,302 +4.9%	$362,100 -6.2%
2009	$4,102 -3.1%	$385,900
2008	$4,233 -3.3%	$385,900 -3.1%
2007	$4,376	$398,200