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$2,995,000

For Sale - Active
3945 Promontory Ct, Boulder, CO 80304
4 Beds
5 Baths
4,093 Square Feet
0.30 Acres Lot
Built in 1984
For Sale - Active
Units n/a
Checked: 6 hours ago
Updated: Jun 19, 2025 at 03:28AM

Investment Summary


Monthly Cash Flow
-$12,499
Cap Rate
1.3%
Cash-on-Cash Return
-21.8%
Debt Coverage Ratio
0.20
Internal Rate of Return (5 years)
-17.0%

Property Description


0.30 Acres Lot
Built in 1984
For Sale - Active
Units n/a

Bordering Boulder's scenic greenbelt, this contemporary European-inspired residence offers exceptional privacy and immediate access to nature. Tucked into a coveted northwest Boulder enclave, the home is surrounded by mature trees, native aspen, and curated gardens that create a sense of seclusion and serenity. Impeccably maintained, the property includes a walk-out lower level with private entry which is perfect for a guest suite, in-law apartment, or additional rental unit. Even more there is a fully equipped, income-producing ADU attached to the oversized detached garage. Indoors, the light-filled layout features clean architectural lines, open-concept living spaces, and an ultra-modern kitchen, all in pristine condition. Multiple sun-drenched patios and decks foster a seamless connection to the outdoors, where expansive views, lush landscaping, and total privacy elevate daily living. Step directly off the property to connect with upper and lower Wonderland Lake trails, your private gateway to open space, fresh air, and endless recreation. A private tennis and swimming facility is also just a short walk away. A rare offering that blends design, function, and nature in perfect balance this is Boulder living!

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Location


Property Details


Parking

  • Description: Detached Garage
  • Details: Oversized
  • Garage Spaces: 2
  • Spaces Total: 2

Bedroom Information

  • # of Bedrooms: 4

Bathroom Information

  • # of Baths (Full): 3
  • # of Baths (Partial): 1
  • # of Baths (Total): 5.0

Interior Features

  • # of Rooms: 15
  • # of Stories: 2
  • Basement Description: Crawl Space, None

Exterior Features

  • Exterior Walls Materials: Marble
  • Roof Material: Spanish Tile
  • Pool: Yes

HOA

  • Has HOA: Yes
  • Association: wonderland Hill Pool&tennis
  • HOA Fee: $725/annually

Land Information

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

Lot Information

  • Parcel ID: 146113312029
  • Lot Size: 13042 sqft

Property Information

  • Property Type: Single Family Residence
  • Style: Contemporary
  • Year Built: 1984

Tax Information

  • Annual Tax: $12,399

Utilities

  • Water & Sewer: Public
  • Heating: Baseboard, Forced Air
  • Cooling: Ceiling Fan(s), Central Air

Location

  • County: Boulder

Listing Details


Listed by:
Joel Ripmaster
Slifer Smith & Frampton-Bldr
(303) 443-3377

Source:
REColorado
MLS#: IR1033748
REColorado

Investment Summary


Monthly Cash Flow
-$12,499
Cap Rate
1.3%
Cash-on-Cash Return
-21.8%
Debt Coverage Ratio
0.20
Internal Rate of Return (5 years)
-17.0%

Purchase Details

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Purchase price:
$2,995,000
Amount financed:
-$2,396,000
Down payment:
$599,000
Closing costs:
$89,850
Rehab costs:
$0
Initial cash invested:
$688,850
Square feet:
4,093
Cost per square foot:
$732
Monthly rent per square foot:
$1.51

Financing Details

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Loan amount:
$2,396,000
Loan to value ratio:
80.0%
Loan type:
Amortizing
Term:
30 years
Interest rate:
6.840%
Principal & interest:
$15,684
Property tax:
$1,033
Insurance:
$434
Private mortgage insurance (PMI):
$0
Monthly payment:
$17,151

Operating Income

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% Rent Monthly Yearly
Gross rent:
$6,200 $74,400
Vacancy loss: (6%)
6% -$372 -$4,464
Operating income:
$5,828 $69,936

Operating Expenses


% Rent Monthly Yearly
Property taxes: (17%)
17%-$1,033-$12,399
Insurance: (7%)
7%-$434-$5,208
Property management: (8%)
8%-$496-$5,952
Repairs & maintenance: (5%)
5%-$310-$3,720
Capital expenditures: (5%)
5%-$310-$3,720
HOA fees: (1%)
1%-$60-$720
Total operating expenses: (43%)
43%-$2,643-$31,719

Cash Flow


Monthly Yearly
Net operating income:
$3,185 $38,220
Mortgage payments:
-$15,684 -$188,208
Cash flow:
$12,499 $149,988