Welcome home to Boston's waterfront at The Mariner, where the comforts of a full-service elevator building meet harbor living. This inviting one-bedroom residence features an open-concept main living area with high ceilings that flows out to a private, covered balcony, the perfect spot for morning coffee or hosting with a view of the city skyline. Other defining features include central air conditioning, in-unit laundry, and recessed lighting. Residents of The Mariner enjoy 24-hour concierge service, plus access to an oversized, furnished common roof deck with sweeping panoramic views of Boston Harbor. Originally built in 1911 and converted to condos in 1987, the building itself carries the character of Boston's storied waterfront. Recent noteworthy capital improvements within the association include a new cooling tower and boiler, roof, exterior façade coating, and an updated lobby and hallways. Improvements within the unit include a new HVAC system (2023), refrigerator (2023), and dishwasher (2023), washer and dryer (2022). Ideally located just steps from the Historic North End harborwalk, Hanover Street restaurants, the Financial District, and TD Garden. Pets are permitted with trustee approval.
For sale
$610,000
300 Commercial St APT 512, Boston, MA 02109
1beds
577sqft
Condominium
Built in 1900
-- sqft lot
$588,500 Zestimate®
$1,057/sqft
$680/mo HOA
What's special
Central air conditioningIn-unit laundryPrivate covered balconyRecessed lightingInviting one-bedroom residenceHigh ceilings
- 1 day
- 126
- 10
Zillow last checked:
Listing updated:
Listed by:
Boston Real Estate Group 617-828-7020,
Compass 617-206-3333,
Michael Valencius 781-808-6415
Source: MLS PIN,MLS#: 73578792
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 1
- Bathrooms: 1
- Full bathrooms: 1
Heating
- Heat Pump
Cooling
- Heat Pump
Appliances
- Included: Range, Dishwasher, Disposal, Refrigerator, Washer, Dryer
- Laundry: In Unit
Features
- Flooring: Parquet
- Has basement: No
- Has fireplace: No
- Common walls with other units/homes: Corner
Interior area
- Total structure area: 577
- Total interior livable area: 577 sqft
- Finished area above ground: 577
Property
Parking
- Parking features: On Street
- Has uncovered spaces: Yes
Accessibility
- Accessibility features: Accessible Entrance
Features
- Patio & porch: Patio - Enclosed
- Exterior features: Patio - Enclosed
- On waterfront: Yes
- Waterfront features: Waterfront, Harbor
Details
- Parcel number: 3343478
- Zoning: RES
Construction
Type & style
- Home type: Condo
- Property subtype: Condominium
- Attached to another structure: Yes
Materials
- Brick, Stone
- Roof: Rubber
Condition
- Year built: 1900
- Major remodel year: 1986
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: for Electric Range
Community & HOA
Community
- Features: Public Transportation, Shopping, Pool, Park, Walk/Jog Trails, Medical Facility, Highway Access, Public School, T-Station, University
- Security: Doorman, Concierge
HOA
- Amenities included: Elevator(s)
- Services included: Water, Sewer, Insurance, Security, Snow Removal, Trash
- HOA fee: $680 monthly
Location
- Region: Boston
Financial & listing details
- Price per square foot: $1,057/sqft
- Tax assessed value: $533,900
- Annual tax amount: $6,620
- Date on market: 9/17/2026
Estimated market value
$588,500
$559,000 - $618,000
$2,943/mo
Price history
| Date | Event | Price |
|---|---|---|
| 9/17/2026 | Listed for sale | $610,000+10.9%$1,057/sqft |
Source: MLS PIN #73578792 Report a problem | ||
| 7/23/2024 | Listing removed | -- |
Source: Zillow Rentals Report a problem | ||
| 6/25/2024 | Listed for rent | $2,650+32.5%$5/sqft |
Source: Zillow Rentals Report a problem | ||
| 4/14/2022 | Sold | $550,000+1.9%$953/sqft |
Source: MLS PIN #72949573 Report a problem | ||
| 3/14/2022 | Contingent | $539,900$936/sqft |
Source: MLS PIN #72949573 Report a problem | ||
| 3/7/2022 | Listed for sale | $539,900-8.5%$936/sqft |
Source: MLS PIN #72949573 Report a problem | ||
| 12/14/2020 | Listing removed | $2,000$3/sqft |
Source: Bento Real Estate Group, Inc. #72760301 Report a problem | ||
| 12/4/2020 | Price change | $2,000-13%$3/sqft |
Source: Bento Real Estate Group, Inc. #72760301 Report a problem | ||
| 11/24/2020 | Listed for rent | $2,300$4/sqft |
Source: Bento Real Estate Group, Inc. #72760301 Report a problem | ||
| 8/15/2020 | Listing removed | $2,300$4/sqft |
Source: Bento Real Estate Group, Inc. #72690263 Report a problem | ||
| 8/14/2020 | Listing removed | $589,900$1,022/sqft |
Source: Bento Real Estate Group, Inc. #72644303 Report a problem | ||
| 7/24/2020 | Price change | $2,300-4.2%$4/sqft |
Source: Bento Real Estate Group, Inc. #72690263 Report a problem | ||
| 7/13/2020 | Listed for rent | $2,400+4.3%$4/sqft |
Source: Zillow Rental Manager Report a problem | ||
| 6/23/2020 | Price change | $589,900-1.7%$1,022/sqft |
Source: Bento Real Estate Group, Inc. #72644303 Report a problem | ||
| 4/15/2020 | Listed for sale | $599,900+11.1%$1,040/sqft |
Source: Bento Real Estate Group, Inc. #72644303 Report a problem | ||
| 4/9/2017 | Listing removed | $2,300$4/sqft |
Source: Bento Real Estate Group, Inc. #72090564 Report a problem | ||
| 3/29/2017 | Price change | $2,300-4.2%$4/sqft |
Source: Bento Real Estate Group, Inc. #72090564 Report a problem | ||
| 2/22/2017 | Listed for rent | $2,400$4/sqft |
Source: Bento Real Estate Group, Inc. #72090564 Report a problem | ||
| 11/4/2016 | Sold | $540,000+8%$936/sqft |
Source: Public Record Report a problem | ||
| 9/30/2016 | Listed for sale | $499,900+509.6%$866/sqft |
Source: Otis & Ahearn - 84 Atlantic #72074655 Report a problem | ||
| 9/15/1994 | Sold | $82,000-11.8%$142/sqft |
Source: Public Record Report a problem | ||
| 4/13/1994 | Sold | $93,000$161/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $6,183 +6.2% | $533,900 -0.1% |
| 2024 | $5,823 +2.6% | $534,200 +1.1% |
| 2023 | $5,676 -0.3% | $528,500 +1% |
| 2022 | $5,692 +2% | $523,200 |
| 2021 | $5,583 +3.9% | $523,200 +2.9% |
| 2020 | $5,371 +3.2% | $508,600 +3% |
| 2019 | $5,206 +3.6% | $493,900 +3% |
| 2018 | $5,027 +284.6% | $479,700 -3.1% |
| 2017 | $1,307 -75% | $495,300 +4.2% |
| 2016 | $5,228 +6.7% | $475,290 +17.5% |
| 2015 | $4,900 +3% | $404,600 +7% |
| 2014 | $4,758 +1.5% | $378,200 +6% |
| 2013 | $4,688 -3.3% | $356,800 -4.1% |
| 2012 | $4,850 +2% | $371,900 |
| 2011 | $4,757 +7.7% | $371,900 |
| 2010 | $4,418 +13.4% | $371,900 +1.4% |
| 2009 | $3,897 -3.1% | $366,600 |
| 2008 | $4,022 -0.2% | $366,600 |
| 2007 | $4,029 | $366,600 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: North End
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