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$749,500

Sold
300 Commercial St Apt 709, Boston, MA 02109
2 Beds
1 Bath
784 Square Feet
0.02 Acres Lot
Built in 1900
Sold
105 Units
Checked: 4 days ago
Updated: Nov 02, 2025 at 10:57PM

Investment Summary


Monthly Cash Flow
-$1,529
Cap Rate
3.2%
Cash-on-Cash Return
-10.6%
Debt Coverage Ratio
0.57
Internal Rate of Return (5 years)
-6.3%

Property Description


0.02 Acres Lot
Built in 1900
Sold
105 Units

This Waterfront home features a walk-out private balcony with views of the City and the Old North Church. An Ideal floor plan offering an interior second bedroom, or in-home office/den. Kitchen with updated cabinetry, stone countertops, and Stainless-Steel appliances. The Living/Dining area has direct access to the outdoor space, recessed lighting, and floor-to-ceiling window with City Views. Master bedroom with additional City views and a walk-in closet. Bathroom with updated vanity, lighting and custom tilework. Separate laundry room with Washer/Dryer combo, Central Air, and Pet-friendly. The Mariner is a full-time concierge building with garage parking. The building features a new residence lobby, updated hallways, new roof, and common roof deck expansion with harbor and city views. Located on the primary footpath of the Waterfront and next to the Historic North End, Greenway, Seaport District, Financial District, Faneuil Hall, Downtown Boston, and all major transportation points.

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Location


Property Details


Parking

  • Description: Attached, Under, Off Street, Rented, On Street
  • Details: Attached, Off Street, On Street
  • Garage Spaces: 0
  • Spaces Total: 0

Bedroom Information

  • # of Bedrooms: 2

Bathroom Information

  • # of Baths (Full): 1
  • # of Baths (Total): 1.0

Interior Features

  • # of Rooms: 4
  • # of Stories: 1

Exterior Features

  • Exterior Walls Materials: Brick
  • Roof Type: Flat
  • Roof Material: Rubber

HOA

  • Has HOA: Yes
  • HOA Fee: $777/monthly

Land Information

  • Land Use: Residential
  • Land Use Subtype: Condominium Unit

Lot Information

  • Parcel ID: CBOSW:03P:03543S:176
  • Lot Size: 871 sqft

Property Information

  • Property Type: Condominium
  • Year Built: 1900

Tax Information

  • Annual Tax: $7,028

Utilities

  • Water & Sewer: Public
  • Heating: Heat Pump, Forced Air
  • Cooling: Central Air, Heat Pump

Location

  • County: Suffolk

Investment Summary


Monthly Cash Flow
-$1,529
Cap Rate
3.2%
Cash-on-Cash Return
-10.6%
Debt Coverage Ratio
0.57
Internal Rate of Return (5 years)
-6.3%

Purchase Details

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Purchase price:
$749,500
Amount financed:
-$599,600
Down payment:
$149,900
Closing costs:
$22,485
Rehab costs:
$0
Initial cash invested:
$172,385
Square feet:
784
Cost per square foot:
$956
Monthly rent per square foot:
$6.25

Financing Details

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Loan amount:
$599,600
Loan to value ratio:
80.0%
Loan type:
Amortizing
Term:
30 years
Interest rate:
5.875%
Principal & interest:
$3,547
Property tax:
$586
Insurance:
$343
Private mortgage insurance (PMI):
$0
Monthly payment:
$4,476

Operating Income

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% Rent Monthly Yearly
Gross rent:
$4,900 $58,800
Vacancy loss: (6%)
6% -$294 -$3,528
Operating income:
$4,606 $55,272

Operating Expenses


% Rent Monthly Yearly
Property taxes: (12%)
12%-$586-$7,029
Insurance: (7%)
7%-$343-$4,116
Property management: (8%)
8%-$392-$4,704
Repairs & maintenance: (5%)
5%-$245-$2,940
Capital expenditures: (5%)
5%-$245-$2,940
HOA fees: (16%)
16%-$777-$9,324
Total operating expenses: (53%)
53%-$2,588-$31,053

Cash Flow


Monthly Yearly
Net operating income:
$2,018 $24,216
Mortgage payments:
-$3,547 -$42,564
Cash flow:
-$1,529 -$18,348