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!Value proposition, the property includes a lovely lower level ADU with walk-out access and privacy. Large one bedroom with full kitchen and very nice and bright living space. Ample parking and based on Comps with ADU's in the immediate market, annual gross income comps at $2.00 per square per year. Beside the ADU, the garage has a studio, office or flex space. Lovely clean and bright, comfortable Call listing agent for more info.
For sale
Price cut: $155K (6/10)
$2,995,000
3945 Promontory Ct, Boulder, CO 80304
4beds
4,093sqft
Est.:
Residential-Detached, Residential
Built in 1984
0.3 Acres Lot
$-- Zestimate®
$732/sqft
$60/mo HOA
What's special
Curated gardensMature treesClean architectural linesExpansive viewsSun-drenched patios and decksIn-law apartmentFully equipped income-producing adu
- 88 days
- on Zillow |
- 751 |
- 49 |
Zillow last checked: 7 hours ago
Listing updated: July 30, 2025 at 01:45pm
Listed by:
Joel Ripmaster 303-641-3377,
Slifer Smith & Frampton-Bldr
Source: IRES,MLS#: 1033748

Travel times
Tour with a buyer's agent
Tour with a buyer's agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 5
- Full bathrooms: 3
- 3/4 bathrooms: 1
- 1/2 bathrooms: 1
- Main level bedrooms: 2
Primary bedroom
- Area: 260
- Dimensions: 20 x 13
Bedroom 2
- Area: 156
- Dimensions: 13 x 12
Bedroom 3
- Area: 238
- Dimensions: 17 x 14
Bedroom 4
- Area: 198
- Dimensions: 18 x 11
Dining room
- Area: 117
- Dimensions: 13 x 9
Kitchen
- Area: 252
- Dimensions: 21 x 12
Living room
- Area: 494
- Dimensions: 26 x 19
Heating
- Forced Air, Baseboard, 2 or More Heat Sources
Cooling
- Central Air, Ceiling Fan(s)
Appliances
- Included: Dishwasher, Refrigerator, Washer, Dryer
- Laundry: Lower Level
Features
- Study Area, High Speed Internet, Eat-in Kitchen, Cathedral/Vaulted Ceilings, Open Floorplan, Stain/Natural Trim, Loft, Wet Bar, Sun Space, Open Floor Plan
- Flooring: Wood, Wood Floors, Vinyl, Carpet
- Doors: Storm Door(s)
- Windows: Window Coverings, Double Pane Windows
- Basement: None,Crawl Space
- Has fireplace: Yes
- Fireplace features: Free Standing, Living Room
Interior area
- Total structure area: 4,093
- Total interior livable area: 4,093 sqft
- Finished area above ground: 4,093
- Finished area below ground: 0
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Oversized
- Garage spaces: 2
- Details: Garage Type: Detached
Accessibility
- Accessibility features: Main Floor Bath, Accessible Bedroom
Features
- Levels: Tri-Level
- Stories: 3
- Patio & porch: Patio, Deck
- Exterior features: Balcony, Tennis Court(s)
- Has private pool: Yes
- Pool features: Private
- Has spa: Yes
- Fencing: Wood
- Has view: Yes
- View description: Hills, Plains View, Water
- Has water view: Yes
- Water view: Water
Lot
- Size: 0.3 Acres
- Features: Sidewalks, Fire Hydrant within 500 Feet, Lawn Sprinkler System, Cul-De-Sac, Corner Lot, Wooded, Abuts Public Open Space
Details
- Parcel number: R0095451
- Zoning: RR
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary/Modern
- Property subtype: Residential-Detached, Residential
Materials
- Stucco
- Roof: Other
Condition
- Not New, Previously Owned
- New construction: No
- Year built: 1984
Utilities & green energy
- Electric: Electric, Xcel
- Gas: Natural Gas, Xcel
- Sewer: City Sewer
- Water: City Water, City of Boulder
- Utilities for property: Natural Gas Available, Electricity Available, Cable Available
Green energy
- Energy efficient items: Southern Exposure, Thermostat
Community & HOA
Community
- Features: Clubhouse, Tennis Court(s), Pool
- Subdivision: Wonderland Hill 7 & 8
HOA
- Has HOA: Yes
- Services included: Common Amenities, Management
- HOA fee: $725 annually
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $732/sqft
- Tax assessed value: $2,260,700
- Annual tax amount: $12,399
- Date on market: 5/12/2025
- Listing terms: Cash,Conventional
- Electric utility on property: Yes
- Road surface type: Paved, Concrete
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