Lush, secluded site on the very west of Baseline-small private road right across from beautiful Chautauqua Park. Enjoy spectacular, up close Flatiron views from this mid-century modern home. Period architectural details with paneled, vaulted and beamed ceilings, retro kitchen, walls of glass, 3 fireplaces (gas) and over 4100 sq ft to work with. Sprawling ranch with a full walk-out lower level and several incredible outdoor living spaces. All original condition and ready for a top to bottom renovation. In its prime, the outdoor living spaces overlooked a forest of trees and flowering gardens with seasonal Gregory Creek flowing at the west edge of the property. 15,926 square foot lot at the base of Flagstaff Mountain. Big square footage ready for your 21st century redesign. Please contact listing agent for interior picture availability.
Sold for $2,700,000
$2,700,000
421 Baseline Rd, Boulder, CO 80302
5beds
4,101sqft
Single Family Residence
Built in 1956
0.37 Acres Lot
$2,704,100 Zestimate®
$658/sqft
$7,419 Estimated rent
Home value
$2,704,100
$2.43M - $3.03M
$7,419/mo
Zestimate® history
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Owner options
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What's special
Zillow last checked: 8 hours ago
Listing updated: October 20, 2025 at 06:42pm
Listed by:
Brian Hellwig 3034497000,
RE/MAX of Boulder, Inc,
Brian Hellwig 303-818-6592,
RE/MAX of Boulder, Inc
Bought with:
Kiki Kidder, 40009838
Compass - Boulder
Source: IRES,MLS#: 982962
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 3
- Full bathrooms: 1
- 3/4 bathrooms: 2
- Main level bathrooms: 2
Primary bedroom
- Description: Carpet
- Level: Main
- Area: 495 Square Feet
- Dimensions: 15 x 33
Bedroom 2
- Description: Wood
- Level: Lower
- Area: 100 Square Feet
- Dimensions: 10 x 10
Bedroom 3
- Description: Carpet
- Level: Lower
- Area: 99 Square Feet
- Dimensions: 9 x 11
Bedroom 4
- Description: Wood
- Level: Lower
- Area: 150 Square Feet
- Dimensions: 10 x 15
Bedroom 5
- Level: Main
- Area: 252 Square Feet
- Dimensions: 12 x 21
Dining room
- Description: Carpet
- Level: Main
- Area: 120 Square Feet
- Dimensions: 10 x 12
Family room
- Description: Tile
- Level: Lower
- Area: 720 Square Feet
- Dimensions: 24 x 30
Kitchen
- Description: Wood
- Level: Main
- Area: 153 Square Feet
- Dimensions: 9 x 17
Living room
- Description: Carpet
- Level: Main
- Area: 390 Square Feet
- Dimensions: 15 x 26
Study
- Description: Wood
- Level: Lower
- Area: 304 Square Feet
- Dimensions: 16 x 19
Heating
- Forced Air
Appliances
- Included: Electric Range, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Disposal
Features
- Windows: Window Coverings
- Basement: Full,Partially Finished,Walk-Out Access
- Has fireplace: Yes
- Fireplace features: Two or More, Gas, Living Room, Bedroom, Basement
Interior area
- Total structure area: 3,895
- Total interior livable area: 4,101 sqft
- Finished area above ground: 3,895
- Finished area below ground: 0
Property
Parking
- Total spaces: 2
- Parking features: Garage, Carport
- Garage spaces: 2
- Has carport: Yes
- Details: Carport
Features
- Levels: One
- Stories: 1
- Patio & porch: Enclosed
- Exterior features: Balcony
- Has view: Yes
- View description: Hills
Lot
- Size: 0.37 Acres
- Features: Cul-De-Sac, Wooded
Details
- Parcel number: R0003177
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Frame, Brick
- Roof: Composition
Condition
- New construction: No
- Year built: 1956
Utilities & green energy
- Electric: Xcel
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Southern Exposure
Community & neighborhood
Location
- Region: Boulder
- Subdivision: Willowbrook
Other
Other facts
- Listing terms: Cash,Conventional
Price history
| Date | Event | Price |
|---|---|---|
| 6/28/2023 | Sold | $2,700,000-10%$658/sqft |
Source:  IRES #982962 Report a problem | ||
| 3/6/2023 | Listed for sale | $3,000,000+106.9%$732/sqft |
Source: IRES #982962 Report a problem | ||
| 10/8/2022 | Listing removed | -- |
Source: Zillow Rental Manager Report a problem | ||
| 9/21/2022 | Listed for rent | $4,000+5.4%$1/sqft |
Source: Zillow Rental Manager Report a problem | ||
| 9/20/2017 | Listing removed | $3,795$1/sqft |
Source: PG Rentals Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $12,162 +1.1% | $134,043 -5.7% |
| 2024 | $12,026 +12.9% | $142,073 -1% |
| 2023 | $10,656 +4.8% | $143,452 +25.9% |
Find assessor info on the county website
Neighborhood: 80302
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 0.6 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 3.3 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 1.3 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Manhattan
- High: Boulder
Source: IRES. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
Sell for more on Zillow
Get a Zillow Showcase℠ listing at no additional cost and you could sell for .
$2,704,100
2% more+$54,082
With Zillow Showcase(estimated)$2,758,182