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$2,995,000

3945 Promontory Ct Boulder, CO 80304

4 beds
3 full, 2 partial
4,093 sqft
0.3 acres
$732 / sqft
House

Property details

About 3945 Promontory Ct

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!

Highlights

Home typeSingle Family Residence
HeatingBaseboard, Forced Air
StatusActive
CoolingCeiling Fan(s), Central Air
Size4,093 sqft
Lot size0.3 Acres
Year built1984
ParkingOversized
MLS #IR1033748
Garage2 spaces
FireplaceFamily Room, Free Standing, Living Room
ViewMountain(s), Water
Private poolYes

Summary

  • Partial Bathrooms: 2
  • Full Bathrooms: 3
  • Appliances: Dishwasher, Dryer, Refrigerator, Washer
  • Basement: No
  • Flooring Type: Vinyl, Wood
  • Interior: Eat-in Kitchen, Five Piece Bath, Open Floorplan, Smart Thermostat, Vaulted Ceiling(s), Wet Bar
  • Fireplace: Family Room, Free Standing, Living Room
  • Total Bedroom Count: 4
  • Garage Space: 2 spaces
  • Private Pool: Yes
  • Parking: Oversized
  • View: Mountain(s), Water
  • Exterior: Balcony, Tennis Court(s)
  • Architectural Style: Contemporary
  • Heating: Baseboard, Forced Air
  • Cooling: Ceiling Fan(s), Central Air
  • List Price: $2,995,000
  • Price/SqFt: $731
  • HOA Amount: $725 Annually
  • Annual Tax Amount: $12,183
  • Tax Year: 2023
  • Lot: Corner Lot, Cul-De-Sac, Open Lot, Sprinklers In Front
  • Directions: North Broadway west on Poplar to the T stop, south to the first western turn, tough to identify as it winds between homes, turn west to the house.
  • Year Built: 1984
  • Living Area: 4,093 SqFt
  • Lot Size: 0.3 Acres
  • MLS Number: IR1033748
  • MLS Name: RECOLORADO
  • Office Name: Slifer Smith & Frampton-Bldr
  • Office Phone: (303) 443-3377
  • Listing Agent: Joel Ripmaster

IDX Listings courtesy of REColorado as distributed by MLS GRID.

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IDX ©2025 METROLIST, INC., DBA RECOLORADO® - All Rights Reserved.

Presented by Rocket Homes Real Estate, LLC
Licensed in Colorado Brokerage License # EC. 100073419

The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange ("IDX") program of METROLIST, INC., DBA RECOLORADO® Real estate listings held by brokers other than Rocket Homes Real Estate, LLC are marked with the IDX Logo. This information is being provided for the consumers' personal, non-commercial use and may not be used for any other purpose. All information subject to change and should be independently verified.

This publication is designed to provide information with regard to the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

The information contained in this publication is subject to change without notice. METROLIST, INC., DBA RECOLORADO MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. METROLIST, INC., DBA RECOLORADO SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN OR FOR ANY DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

All real estate advertised herein is subject to the Federal Fair Housing Act and the Colorado Fair Housing Act, which Acts make it illegal to make or publish any advertisement that indicates any preference, limitation, or discrimination based on race, color, religion, sex, handicap, familial status, or national origin.

METROLIST, INC., DBA RECOLORADO will not knowingly accept any advertising for real estate that is in violation of the law. All persons are hereby informed that all dwellings advertised are available on an equal opportunity basis.

Equal Housing

© 2025 METROLIST, INC., DBA RECOLORADO® – All Rights Reserved
6455 S. Yosemite St., Suite 300
Greenwood Village, CO 80111 USA

ALL RIGHTS RESERVED WORLDWIDE. No part of this publication may be reproduced, adapted, translated, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. The information contained herein including but not limited to all text, photographs, digital images, virtual tours, may be seeded and monitored for protection and tracking.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.
Last updated on: 7/22/2025, 11:42:29 AM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.

Price information

Property sales

DateEventPrice
Sep 21, 2009
Home Sold
$820,000

Tax history

YearAssessmentProperty Tax
2023$151,467$12,183
2022$126,288$11,082
2021$129,923$10,567
2020$111,097$9,048
2019$111,874$8,497
2018$98,014$8,231
2017$98,014$8,179

History based on county public records data.

Nearby schools

8

Foothill Elementary School

Public District KG-5

1.0 mi

1001 Hawthorn Ave

7

Crest View Elementary School

Public District KG-5

1.1 mi

1897 Sumac Ave

5

Columbine Elementary School

Public District PK-5

1.7 mi

3130 Repplier St

School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.

All data from GreatSchools

Neighborhood

The neighbors living near this home have an average income of $108,750. Typical income of Boulder, CO residents is between $35k-100k annually. Typical family type is single, no kids. Typical level of education for residents in this area is post secondary degree.

How much money do the neighbors make?

11%
<35k
35%
35k-100k
31%
100k-200k
23%
200k+

What level of education do the neighbors have?

High School Diploma
Post Secondary Degree
Masters Degree
Doctorate

What types of families live nearby?

36%
Single, No Kids
13%
Single, with Kids
25%
Married, No Kids
26%
Married, with Kids

Are the neighbors home owners or renters?

Home Owners
Renters

How old are people in this area?

18%
<11 yrs old
9%
12-17 yrs old
14%
18-34 yrs old
50%
35-64 yrs old
9%
65+ yrs old

What do the neighbors do for fun?

  • Skiing/snowboardingSkiing/snowboarding
  • Men's TennisMen's Tennis
  • SoccerSoccer

Where do the neighbors shop?

  • NordstromNordstrom
  • BloomingdalesBloomingdales
  • The Container StoreThe Container Store

Where do the neighbors go to eat?

  • California Pizza KitchenCalifornia Pizza Kitchen
  • Bonefish GrillBonefish Grill
  • StarbucksStarbucks

What do the neighbors drive?

  • BMWBMW
  • LexusLexus
  • AudiAudi

What do the neighbors listen to?

  • Talk/PersonalityTalk/Personality
  • NewsNews
  • AlternativeAlternative
All data provided by Home Junction and Claritas

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Frequently asked questions

About 3945 Promontory Ct

The listing price of 3945 Promontory Ct property is $2,995,000.

The property 3945 Promontory Ct is a house located in Boulder, Colorado, 80304.

Active Listing: 3945 Promontory Ct is For Sale (Active/New) which means the seller is accepting offers.

The nearby schools for 3945 Promontory Ct are: Foothill Elementary School (GreatSchools Rating 8/10), Crest View Elementary School (GreatSchools Rating 7/10), Columbine Elementary School (GreatSchools Rating 5/10), Centennial Middle School (GreatSchools Rating 5/10), Casey Middle School (GreatSchools Rating 3/10), Horizons K-8 School (GreatSchools Rating 8/10), Boulder High School (GreatSchools Rating 8/10), New Vista High School (GreatSchools Rating 7/10), Boulder Preparatory Charter High School (GreatSchools Rating 2/10).

According to the records, the last property tax for 2023 is $12,183 (source: MLS/based on county public records data).

The last sale was on September 21, 2009 for $820,000 (source: MLS/tax record).

The property at 3945 Promontory Ct has 4 bedrooms and 3 full and 2 half bathrooms.

The property 3945 Promontory Ct is 4,093 SqFt (source: MLS/tax record).

The year of construction for 3945 Promontory Ct is 1984.

This home is located at 3945 Promontory Ct in Boulder, CO and zip code 80304 in the Northwest Boulder neighborhood. This 4,093 square foot home, which was built in 1984, sits on a 0.30 acre lot. Features: 4 bedrooms, 5 bathrooms. It has been listed on Rocket Homes since May 12, 2025 and is currently priced at $2,995,000.

While more than 14 listings in Boulder, CO in June 2025 were sold above asking price, there were more than 34 listings sold at asking price, and more than 114 were sold below. The number of homes for sale in Boulder, CO increased by 8.5% between May and June 2025. In June 2025, listings were on the market for 39 days. During the same period, the median list price in this real estate market was $965,000.

From Rocket Homes Real Estate and based on county public records data.

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