Save
Ask
Tour
Hide
Share
$610,000
19 Days On Site

300 Commercial Street 512
Boston, MA 02109

For Sale|Condominium|Active
1
Bed
1
Total Bath
1
Full Bath
577
SqFt
$1,057
/SqFt
1900
Built
County:
Suffolk
Call Now: 617-299-0289
Is this the listing for you? We can help make it yours.
617-299-0289
300 Commercial Street 512300 Commercial Street 512300 Commercial Street 512300 Commercial Street 512
Save
Ask
Tour
Hide
Share

Mortgage Calculator

Monthly Payment (Est.)

Enter an interest rate to see your estimated monthly payment.
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

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.

Save
Ask
Tour
Hide
Share
Listing Snapshot
Price 
$610,000
Days On Site 
19 Days
Bedrooms 
1
Inside Area (SqFt) 
577 sqft
Total Baths 
1
Full Baths 
1
Partial Baths 
N/A
Lot Size 
N/A
Year Built 
1900
MLS® Number 
73578792
Status 
Active
Property Tax 
$6,620
HOA/Condo/Coop Fees 
$680.42 monthly
Sq Ft Source 
Public Records
Friends & Family
Recent Activity
2 weeks agoListing updated with changes from the MLS®
3 weeks agoListing first seen on site
General Features
Number Of Stories 
1
Parking 
On Street
Pets 
Yes
Property Sub Type 
Condominium
Sewer 
Public Sewer
SqFt Above 
577
SqFt Total 
577
Water Source 
Public
Zoning 
RES
Interior Features
Appliances 
RangeDishwasherDisposalRefrigeratorWasherDryer
Cooling 
Heat Pump
Flooring 
Parquet
Heating 
Heat Pump
Laundry Features 
In Unit
Save
Ask
Tour
Hide
Share
Exterior Features
Construction Details 
BrickStone
Frontage 
Bay/Harbor
Lot Features 
Waterfront
Patio And Porch 
PatioEnclosed
Roof 
Rubber
Waterfront 
Yes
Waterfront Features 
Waterfront
Community Features
Accessibility Features 
Accessible Entrance
Association Amenities 
Elevator(s)
Association Fee 
$680.42
Association Fee Frequency 
Monthly
Community Features 
PoolPark
Listing courtesy of Boston Real Estate Group of Compass



The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors, landlords, and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing, leasing or renting listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing, leasing or renting. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

Last checked 2026-10-07 07:23 AM UTC

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
Save
Ask
Tour
Hide
Share