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$2,875,000

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 3 Full Baths
  • 2 Partial Baths
  • 4,093 Sq. Ft.
  • 2 Car Garage
  • Updated 6 days ago

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Open House: 11:00 AM - 1:00 PM

Saturday 9/5 11:00 AM - 1:00 PM

3945 Promontory Ct,Boulder, CO 80304

3945 Promontory CtBoulderCO80304

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In the sought-after Wonderland Hills community of North Boulder, this 4,093-square-foot residence has been extensively renovated and pairs a turnkey main home with a permitted, income-producing ADU. Backing to the protected City of Boulder greenbelt, the home enjoys open-space and foothill views, remarkable privacy, and trail access. At its heart is a lovely, light-filled great room, opened up and crowned by a wood-paneled vaulted ceiling, with a wall of glass framing the open space and a gas fireplace set beneath a picture window. The remodeled kitchen is a showpiece in custom copper, and warm Brazilian cherry hardwood runs throughout the main level. The primary suite is a true retreat, its modern Euro-style bath appointed with beautiful accents, an oversized glass shower, double vanities, and a wonderful soaking tub that looks out onto nature. Enjoy the built-in infrared sauna, plus several other beautifully finished baths. The walk-out lower level is a fully remodeled, permitted ADU of roughly 1,260 square feet, with its own kitchen, bedroom, bath, living area, a separate radiant heat system, and a private French-door entrance to a garden patio. Rented in the past, it is an ideal setup for guests, extended family, or income, especially timely with the Sundance Film Festival arriving in Boulder in 2027. A detached garage includes a finished office with its own entrance and a half-bath. The upgrades run deep, including a new roof, full exterior stucco, fire-rated Brazilian hardwood decks with glass railings, a pergola over the main deck, two new driveways, and a beautifully redesigned landscape. All just minutes from Wonderland Lake, the private swim and tennis club, trails, Lucky's Market, and Foothill, Centennial, and Boulder High schools.

Full Property Details for 3945 Promontory Ct

General

  • Price: $2,875,000
  • HOA FEE: $60/month
  • HOA FEE FREQ.: Annually
  • Taxes: $12,399 (2024)
  • Status: Active
  • Type: Single Family
  • Source: IRES
  • MLS ID: 1049021
  • Updated: 7/20/2026
  • Added to Site: 239 day(s) ago

Interior

  • Interior Features: Eat-In Kitchen, Cathedral Ceiling(s), Open Floorplan, Natural Woodwork, Wet Bar
  • Fireplace: Yes
  • Fireplace(s): Free Standing, Living Room
  • Appliances: Dishwasher, Refrigerator, Washer, Dryer, Fire Alarm
  • Flooring: Wood

Rooms

Bathrooms

  • Total Bathrooms: 5
  • Full Bathrooms: 3
  • 3/4 Bathrooms: 1
  • Half Bathrooms: 1
  • Main Floor Baths: 2

Bedrooms

  • Total Bedrooms: 4

Additional Information

  • Pool: Yes
  • Pool Description: Private

Exterior

  • Exterior Features: Sprinkler System, Balcony, Hot Tub, Tennis Court(s), Oversized Garage
  • Porch/Patio/Deck: Patio, Deck

Parking

  • Garage: Yes
  • Garage Spaces: 2
  • Parking Features: Detached
  • Garage Description: Detached

Location

  • Area: Boulder
  • County: Boulder
  • Subdivision: Wonderland Hill 7 & 8
  • Driving Directions: Broadway to poplar west to the T stop at promontory south (left) 1/2 block on west side, driveway and park in front of the garage

School Information

  • School District: Boulder Valley Dist RE2
  • Elementary School: Foothill
  • Middle School: Centennial
  • High School: Boulder

Community

  • Association: Yes
  • Assoc. Name: Wonderland Hill Pool & Tennis
  • Assoc. Fees Include: Common Amenities, Management

Heating & Cooling

  • Cooling Type: Central Air, Ceiling Fan(s)
  • Heating Type: Forced Air, Baseboard, 2 or more Heat Sources

Utilities

  • Gas: Yes
  • Gas: Xcel
  • Sewer: Public Sewer
  • Water: City
  • Utility Description: Natural Gas Available, Electricity Available, Cable Available, High-Speed Internet Available

Structural Information

  • Architectural Style: Contemporary
  • Construction: Stucco
  • Exterior Const.: Stucco
  • Basement: Yes
  • Basement Desc.: None, Slab
  • Roof: Other
  • Windows: Window Coverings
  • Square Feet: 4,093
  • Sq. Ft. Source: Assessor
  • Living Area: 4,093 Sq. Ft.
  • Year Built: 1984

Lot Features

  • Property View: Hills, Plains View
  • Lot Size (Acres): 0.3
  • Lot Size (Sq. Ft.): 13,042
  • Frontage: City Street
  • Street/Road Desc.: Concrete
  • Fence: Yes
  • Lot Features: Cul-De-Sac, Corner Lot, Wooded, Evergreen Trees, Deciduous Trees, Native Grass, Abuts Public Open Space, Meadow, Paved, Curbs, Gutters, Sidewalks, Street Light, Fire Hydrant within 500 Feet
  • Potential Use: Single-Family, Additional Units
  • Zoning: Res
  • Fencing (Description): Wood

Green Features

  • Energy Efficient: Sun Space, Southern Exposure, Windows, Doors, Thermostat

Financial Considerations

  • Association Fee: Yes
  • Association Fee: $725
  • Assoc Fee Freq.: Annually
  • Tax Amount: $12,399
  • Tax Year: 2024
  • Terms: Cash, Conventional

Disclosures and Reports

  • Special Conditions: Private Owner
  • Property ID: R0095451

Listed by (303) 641-3377

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— 3945 Promontory Ct —

  • 3036413377

3037713850

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NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Schools serving 3945 Promontory Ct

School District:Boulder Valley School District Re-2
NameGradesDistance
Foothill Elementary School
1001 Hawthorn Avenue, Boulder, CO 80304
K-51 mi
Centennial Middle School, Boulder, CO
2205 Norwood Avenue, Boulder, CO 80304
6-81.3 mi
Boulder High School
1604 Arapahoe Avenue, Boulder, CO 80302
9-122.5 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 3945 Promontory Ct Get Price Alerts and Save Property

Date
Details
Price
Change
Source
7/20/2026
Price Reduced
$2,875,000
-4.01%
MLS
1/05/2026
Listed
$2,995,000
265.24%
MLS
9/16/2009
Sold
$820,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 3945 Promontory Ct

Year
Property Taxes
Change
Tax Assessment
Change
2025
$13,667
10%
$162,745
10%
2024
$12,399
2%
$147,782
-2%
2023
$12,184
15%
$151,467
17%
2021
$10,568
-5%
$129,923
3%
2022
$11,082
5%
$126,288
14%
2021
$10,568
24%
$111,097
13%
2018
$8,498
-11%
$98,014
-12%
2019
$9,522
16%
$111,097
13%
2017
$8,232
1%
$98,014
10%
2016
$8,179
12%
$89,215
—
2015
$7,313
14%
$89,215
19%
2014
$6,432
2%
$74,816
—
2013
$6,291
—
$74,816
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by (303) 641-3377

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3945 Promontory Ct, Boulder, CO 80304 (MLS# 1049021) is a Single Family property with 4 bedrooms, 3 full bathrooms and 2 partial bathrooms. 3945 Promontory Ct is currently listed for $2,875,000 and was received on January 05, 2026. Want to learn more about 3945 Promontory Ct? Do you have questions about finding other Single Family real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.

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