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$3,100,000

Under Contract
21 Branch St, Boston, MA 02108
2 Beds
2 Baths
1,832 Square Feet
0.02 Acres Lot
Built in 1899
Under Contract
Units n/a
Checked: 5 hours ago
Updated: Sep 18, 2025 at 10:02AM

Investment Summary


Monthly Cash Flow
-$11,262
Cap Rate
1.3%
Cash-on-Cash Return
-19.0%
Debt Coverage Ratio
0.23
Internal Rate of Return (5 years)
-14.3%

Property Description


0.02 Acres Lot
Built in 1899
Under Contract
Units n/a

A one-of-a-kind property at an A+ Beacon Hill South Slope location, 21 Branch Street exudes charm and elegance, and offers all the conveniences of easy city living. Surrounded by picturesque architecture, this single family carriage house w/ a rare *private garage,* 2+ bedrooms, 2 baths and deck ticks every box! The open living, dining and kitchen are welcoming, bright and airy w/ windows on 3 sides allowing for incredible sunlight and delightful views. The tastefully renovated kitchen features an island, counter seating, notable appliances, stone counters and a pantry. A nicely proportioned cozy family room/den w/ new gas fireplace, can double as a guest bedroom. The primary suite is on the upper floor and offers complete privacy, a beautifully outfitted walk-in closet and sunny bath. A lovely deck is accessible through the hall, or from the primary bedroom. The entry level has the private 2nd bedroom w/ fireplace and bath, laundry and the garage which also features excellent storage.

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Location


Property Details


Parking

  • Description: Attached, Deeded
  • Details: Attached, Garage
  • Garage Spaces: 1
  • Spaces Total: 0

Bedroom Information

  • # of Bedrooms: 2

Bathroom Information

  • # of Baths (Full): 2
  • # of Baths (Total): 2.0

Interior Features

  • # of Rooms: 6
  • # of Stories: 3
  • Fireplace: Yes

Exterior Features

  • Exterior Walls Materials: Brick
  • Foundation: Other
  • Roof Type: Gable
  • Roof Material: Rubber, Other

Land Information

  • Land Use: Residential
  • Land Use Subtype: Single Family Residential

Lot Information

  • Parcel ID: CBOSW:05P:01418S:000
  • Lot Size: 797 sqft

Property Information

  • Property Type: Single Family Residence
  • Style: Carriage House, Other (See Remarks)
  • Year Built: 1899

Tax Information

  • Annual Tax: $34,446

Utilities

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

Location

  • County: Suffolk

Investment Summary


Monthly Cash Flow
-$11,262
Cap Rate
1.3%
Cash-on-Cash Return
-19.0%
Debt Coverage Ratio
0.23
Internal Rate of Return (5 years)
-14.3%

Purchase Details

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Purchase price:
$3,100,000
Amount financed:
-$2,480,000
Down payment:
$620,000
Closing costs:
$93,000
Rehab costs:
$0
Initial cash invested:
$713,000
Square feet:
1,832
Cost per square foot:
$1,692
Monthly rent per square foot:
$4.97

Financing Details

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Loan amount:
$2,480,000
Loan to value ratio:
80.0%
Loan type:
Amortizing
Term:
30 years
Interest rate:
5.875%
Principal & interest:
$14,670
Property tax:
$2,871
Insurance:
$637
Private mortgage insurance (PMI):
$0
Monthly payment:
$18,178

Operating Income

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% Rent Monthly Yearly
Gross rent:
$9,100 $109,200
Vacancy loss: (6%)
6% -$546 -$6,552
Operating income:
$8,554 $102,648

Operating Expenses


% Rent Monthly Yearly
Property taxes: (32%)
32%-$2,871-$34,447
Insurance: (7%)
7%-$637-$7,644
Property management: (8%)
8%-$728-$8,736
Repairs & maintenance: (5%)
5%-$455-$5,460
Capital expenditures: (5%)
5%-$455-$5,460
HOA fees: (n/a)
n/an/an/a
Total operating expenses: (57%)
57%-$5,146-$61,747

Cash Flow


Monthly Yearly
Net operating income:
$3,408 $40,896
Mortgage payments:
-$14,670 -$176,040
Cash flow:
$11,262 $135,144