Priced out of Trailhead, Mapleton Hill, or Newlands but unwilling to compromise on the Northwest Boulder lifestyle? This may be the opportunity you've been waiting for.Many Boulder homes proudly back to open space. Few deliver the complete lifestyle found here.At 3945 Promontory, your front door opens to the best of Wonderland Hill living: the neighborhood's beloved private swim and tennis club, Wonderland Lake, miles of trails, and one of Boulder's most active and sought-after communities. Out the back door, the world changes completely. Bordering the City of Boulder's permanent greenbelt, the property opens to a vast expanse of protected open space that feels less like a backyard and more like thousands of acres of your own private preserve. This artistic, European-inspired contemporary is designed for buyers who value lifestyle over perfection and understand that finishes can be changed, but locations like this are nearly impossible to recreate. The flexible floorplan offers exceptional opportunities for today's active Boulder buyer. A private-entry ADU can provide income, accommodate extended family, or create independent guest quarters. An attached studio adjacent to the oversized garage is ideal as a home office, fitness space, art studio, entrepreneurial headquarters. Multiple decks/ patios, mature trees, curated gardens, a firepit, hot tub create an outdoor environment. This is not a home designed for people slowing down. Designed for building something-families, professionals, entrepreneurs, creatives, outdoor enthusiasts who want to live Boulder's most coveted neighborhoods while creating value through thoughtful updates over time. Why compete for a fully remodeled home when you can secure one of Northwest Boulder's most remarkable settings and make it distinctly your own?Wonderland Lake, private swim and tennis amenities, walkable schools, Lucky's Market, downtown Boulder, open space are all part of everyday life here. Live. Create. Explore. Earn.
For sale
$2,995,000
3945 Promontory Ct, Boulder, CO 80304
4beds
4,093sqft
Mixed Use
Built in 1984
0.3 Acres Lot
$-- Zestimate®
$732/sqft
$60/mo HOA
What's special
Curated gardensMature treesHot tubPrivate-entry aduArtistic european-inspired contemporaryFlexible floorplan
- 176 days |
- 470 |
- 21 |
Zillow last checked:
Listing updated:
Listed by:
Joel Ripmaster 303-771-3850,
Madison & Company Properties - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1049021
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 5
- Full bathrooms: 3
- 3/4 bathrooms: 1
- 1/2 bathrooms: 1
- Main level bathrooms: 3
Rooms
- Room types: Loft
Primary bedroom
- Description: Carpet
- Features: 5 Piece Primary Bath
- Level: Main
- Area: 260 Square Feet
- Dimensions: 13 x 20
Bedroom 2
- Description: Carpet
- Level: Main
- Area: 156 Square Feet
- Dimensions: 12 x 13
Bedroom 3
- Description: Carpet
- Level: Main
- Area: 238 Square Feet
- Dimensions: 14 x 17
Bedroom 4
- Description: Carpet
- Level: Lower
- Area: 198 Square Feet
- Dimensions: 11 x 18
Dining room
- Description: Hardwood
- Level: Main
- Area: 117 Square Feet
- Dimensions: 9 x 13
Kitchen
- Description: Hardwood
- Level: Main
- Area: 252 Square Feet
- Dimensions: 12 x 21
Laundry
- Description: Vinyl
- Level: Upper
- Area: 78 Square Feet
- Dimensions: 6 x 13
Living room
- Description: Hardwood
- Level: Main
- Area: 494 Square Feet
- Dimensions: 19 x 26
Recreation room
- Description: Carpet
- Level: Lower
- Area: 400 Square Feet
- Dimensions: 20 x 20
Study
- Description: Carpet
- Level: Upper
- Area: 160 Square Feet
- Dimensions: 10 x 16
Heating
- Forced Air, Baseboard, 2 or more Heat Sources
Cooling
- Central Air, Ceiling Fan(s)
Appliances
- Included: Dishwasher, Refrigerator, Washer, Dryer
Features
- Eat-in Kitchen, Cathedral Ceiling(s), Open Floorplan, Natural Woodwork, Wet Bar
- Flooring: Wood
- Windows: Window Coverings
- Basement: None
- Has fireplace: Yes
- Fireplace features: Free Standing, Living Room
Interior area
- Total structure area: 2,833
- Total interior livable area: 4,093 sqft
- Finished area above ground: 2,833
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Detached, Oversized
- Garage spaces: 2
- Details: Detached
Accessibility
- Accessibility features: Main Floor Bath, Accessible Bedroom
Features
- Levels: Tri-Level
- Patio & porch: Patio, Deck
- Exterior features: Sprinkler System, Balcony, Tennis Court(s)
- Has private pool: Yes
- Pool features: Private
- Spa features: Heated
- Fencing: Wood
- Has view: Yes
- View description: Hills, Plains View
Lot
- Size: 0.3 Acres
- Features: Cul-De-Sac, Corner Lot, Wooded, Evergreen Trees, Deciduous Trees, Native Plants, Abuts Public Open Space, Meadow, Paved, Curbs, Gutters, Sidewalks, Street Light, Fire Hydrant within 500 Feet
Details
- Parcel number: R0095451
- Zoning: Res
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Mixed Use
Materials
- Stucco
- Foundation: Slab
- Roof: Other
Condition
- New construction: No
- Year built: 1984
Utilities & green energy
- Electric: Xcel
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available, Cable Available, High Speed Avail
Green energy
- Energy efficient items: Sun Space, Southern Exposure, Windows, Doors, Thermostat
Community & HOA
Community
- Features: Clubhouse, Tennis Court(s), Pool, Playground
- Security: Fire Alarm
- Subdivision: Wonderland Hill 7 & 8
HOA
- Has HOA: Yes
- Services included: Common Amenities, Management
- HOA fee: $725 annually
- HOA name: Wonderland Hill Pool & Tennis
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $732/sqft
- Tax assessed value: $2,393,300
- Annual tax amount: $12,399
- Date on market: 1/6/2026
- Listing terms: Cash,Conventional
- Electric utility on property: Yes
- Road surface type: Concrete
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 1/6/2026 | Listed for sale | $2,995,000$732/sqft |
Source:  IRES as distributed by MLS GRID #1049021 Report a problem | ||
| 12/31/2025 | Listing removed | $2,995,000$732/sqft |
Source: IRES as distributed by MLS GRID #1033748 Report a problem | ||
| 6/10/2025 | Price change | $2,995,000-4.9%$732/sqft |
Source: IRES as distributed by MLS GRID #1033748 Report a problem | ||
| 5/12/2025 | Listed for sale | $3,150,000+284.1%$770/sqft |
Source: IRES as distributed by MLS GRID #1033748 Report a problem | ||
| 7/11/2021 | Listing removed | -- |
Source: Zillow Rental Manager Report a problem | ||
| 6/9/2021 | Listed for rent | $2,000 |
Source: Zillow Rental Manager Report a problem | ||
| 9/21/2009 | Sold | $820,000-14.6%$200/sqft |
Source: Public Record Report a problem | ||
| 5/6/2009 | Listing removed | $959,900$235/sqft |
Source: Postlets #588518 Report a problem | ||
| 3/15/2009 | Price change | $959,900-3.9%$235/sqft |
Source: Postlets #588518 Report a problem | ||
| 1/24/2009 | Price change | $999,000+3.5%$244/sqft |
Source: Postlets #588518 Report a problem | ||
| 12/4/2008 | Price change | $965,000-1%$236/sqft |
Source: Postlets #588518 Report a problem | ||
| 11/29/2008 | Listed for sale | $975,000$238/sqft |
Source: Postlets #588518 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $12,399 +1.8% | $149,581 -1.2% |
| 2024 | $12,184 +9.9% | $151,467 -11.8% |
| 2023 | $11,082 +4.9% | $171,655 +35.9% |
| 2022 | $10,568 +16.8% | $126,288 -2.8% |
| 2021 | $9,048 | $129,923 +16.9% |
| 2020 | $9,048 +6.5% | $111,097 |
| 2019 | $8,498 | $111,097 +13.3% |
| 2018 | $8,498 | $98,014 -9.5% |
| 2017 | $8,498 +3.9% | $108,360 +21.5% |
| 2016 | $8,179 +11.8% | $89,215 +19.2% |
| 2015 | $7,313 +16.3% | $74,816 |
| 2014 | $6,291 -4.3% | $74,816 |
| 2013 | $6,575 +0.9% | $74,816 -4.7% |
| 2012 | $6,517 +2.8% | $78,486 |
| 2011 | $6,337 +7.1% | -- |
| 2010 | $5,918 +12.9% | $78,410 -6.9% |
| 2009 | $5,240 +3.5% | $84,220 +2.8% |
| 2008 | $5,061 -0.6% | $81,890 |
| 2007 | $5,093 +3.9% | $81,890 +2.7% |
| 2006 | $4,904 +13.9% | $79,700 |
| 2005 | $4,305 +0.7% | $79,700 +13.1% |
| 2004 | $4,274 -8.8% | $70,450 -4.4% |
| 2003 | $4,686 +10.3% | $73,660 +9.7% |
| 2002 | $4,247 | $67,140 -90.9% |
| 2001 | -- | $733,800 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: Wonderland Hills
Nearby schools
GreatSchools rating
- 8/10Foothill Elementary SchoolGrades: K-5Distance: 1 mi
- 7/10Centennial Middle SchoolGrades: 6-8Distance: 1.4 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 2.6 mi
Schools provided by the listing agent
- Elementary: Foothill
- Middle: Centennial
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
- Colorado
- Boulder County
- Boulder
- 80304
- Wonderland Hills
- 3945 Promontory Ct
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