This home's estimate is 57.2% lower than the average sale price ($1.34M) of 5 comparable homes.
Search- Overview
- Sale & tax history
- Property details
- Neighborhood
- Climate
421 Mapleton #B Unit 421B, Boulder, CO 80304
About this home
Redfin Estimate
Earn from this home
List your home with Redfin and save $5,753
List your home for rent
Market trends in 80304, CO
Last updated September 2026
Buyer's Market
Seller's Market
Balanced market
- $1,249,0003 beds4 baths2,848 sq ft419 Wild Horse Cir, Boulder, CO 80304Gregory Pickett • Compass - Denver
See all
Provided by Redfin
Sale history for 421 Mapleton #B Unit 421B
$420/sq ft
$420/sq ft
As the MLS and public records start to fill up, we'll list the details here.
Public record
- Public record
- Zoning
RL-1
Residential-Low 1 District
Primarily single-family detached dwelling units with some duplexes and attached dwelling units at low to very low residential densities.Include but are not limited to:
- Religious facility
- Housing-Multiple units
- Educational/school
- Recreation
- Agriculture-Cropland
- Park & open space
Property details
Parking
- Parking Features
- Covered Spaces: 0
- Garage Spaces: 0
- Parking Features: Alley Access
Interior
- Bathroom Information
- Bathrooms (Full): 1
- Bathrooms (Half): 0
- Bathrooms (Three Quarter): 0
- Bedroom Information
- Bedrooms Total: 1
- Heating & Cooling
- Heating: Yes
- Hot Water, Baseboard
- Interior Features
- Gas Range/Oven, Refrigerator
- Flooring: Wood Floors
- Eat-in Kitchen
- Laundry Features: Common Area
- Room Information
- Basement: Partial, Walk-Out Access
Exterior
- Exterior Features
- Lighting, Balcony
- Roof: Other, Flat
- Land Information
- Road Surface Type: Paved, Asphalt
- Lot Information
- Horse(s): No
- Lot Features: Curbs, Gutters, Sidewalks
- Road Frontage Type: City Street
- Zoning: MRE
- Property Information
- Property Attached: Yes
- Property Type: Attached Dwelling
- Property Sub Type: Attached Dwelling
- View: Yes
- Waterfront: No
- Subdivision Information
- Subdivision Name: MAPLETON AVE CONDOS
- MLS Area Major: Boulder
- Building Information
- Above Grade Finished Area: 616
- Building Area Total: 616
- Construction Materials: Wood/Frame, Brick/Brick Veneer
Financial
- Tax Information
- Parcel Number: 711N254850080140900
- Tax Annual Amount: 669
- Tax Year: 1999
- Financial Information
- Listing Terms: Cash, Conventional
Utilities
- Utility Information
- Utilities: Natural Gas Available, Electricity Available, Cable Available
- Electric: Electric,Individual Meter-Electric,PSCO
- Gas: Natural Gas,PSCO
- Sewer: City Sewer
Location
- Multi-Family Financial Information
- Tenant Pays: Deposit, Electricity
- HOA Information
- Association: No
- Association Fee: 0
- Association Fee Includes: Common Amenities, Trash, Snow Removal, Maintenance Grounds, Management, Utilities, Maintenance Structure, Cable TV, Heat, Hazard Insurance
- Community Features: Park
- School Information
- High School District: Boulder Valley Dist RE2
- Elementary School: MAPLETON
- Middle or Junior School: CASEY
- High School: BOULDER
- Location Information
- Unparsed Address: 421 MAPLETON #B 421B Boulder CO 80304
- Street Number: 421
- Street Name: MAPLETON #B
- UnitNumber: 421B
- City: Boulder
- State or Province: CO
- County or Parish: Boulder
- Country: US
- Postal Code: 80304
- Coordinates: -105.289443,40.020521
- Latitude: 40.020521
- Longitude: -105.289443
Public facts
- Beds: —
- Baths: —
- Sq. Ft.: —
- Stories: —
- Lot Size: —
- Style: Townhouse
- Year Built: —
- Year Renovated: —
- County: Boulder County
- APN: 711N254850080140900
Other
- Documents & Disclosures
- Documents Available: Legal Description Available,Map Available
- Documents Count: 2
- Listing Information
- Attribution Contact: 3034497000
- Close Price: $259,000
- Photos Count: 1
- Special Listing Conditions: Licensed Owner
- Standard Status: Closed
- Listing Date Information
- Close Date: Friday, June 30, 2000
- Cumulative Days on Market: 6
- Days on Market: 6
- Listing Contract Date: Friday, April 28, 2000
- Modification Timestamp: Saturday, July 20, 2024 3:42 AM
- Home Information
- Entry Level: 2
- Entry Location: 2nd Floor
- Window Features: Window Coverings, Wood Frames
- Year Built: 1906
Around this home
Schools
Public K-5 • Assigned • 1.1mi
Public 6-8 • Assigned • 0.6mi
Public 9-12 • Assigned • 0.9mi
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
2% chance of being in a wildfire in next 30 years
7 days above 90° expected this year, 19 days in 30 years
Minimal risk of severe winds over next 30 years
2 unhealthy days expected this year, 2 days in 30 years
Sun exposure
In this area, properties receive around 10.5 hours in June and 6 hours in December, placing it above the U.S. average for solar exposure.
Nearby similar homes
New listings for sale in 80304
Home values near 421 Mapleton #B Unit 421B
| Address | Redfin Estimate |
|---|---|
3 Beds | 2 Baths | 3254 Sq. Ft. | $1,985,022 |
4 Beds | 2 Baths | 2414 Sq. Ft. | $1,663,991 |
| Address | Redfin Estimate |
|---|---|
5 Beds | 5 Baths | 4832 Sq. Ft. | $3,083,605 |
3 Beds | 3.5 Baths | 2966 Sq. Ft. | $2,899,682 |
| Address | Redfin Estimate |
|---|---|
5 Beds | 3.5 Baths | 3683 Sq. Ft. | $2,398,433 |
1 Beds | 1 Baths | 617 Sq. Ft. | $614,730 |
More real estate resources
- Neighborhoods
- Zip Codes
- Cities
- Popular Searches
| Central Boulder homes for sale | |||
| Mapleton Hill homes for sale |
| 80026 homes for sale | |||
| 80027 homes for sale | |||
| 80302 homes for sale | |||
| 80303 homes for sale | |||
| 80305 homes for sale |
| Denver homes for sale | |||
| Arvada homes for sale | |||
| Golden homes for sale |
Find us
Subsidiaries
Affiliated Business
Copyright: © 2026 Redfin. All rights reserved.
Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.
Do not sell or share my personal information.
REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.
California DRE #01521930
Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures
New Mexico Real Estate Licenses
TREC: Info About Brokerage Services, Consumer Protection Notice
All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.
Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.
If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.
REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.
















































United States
Canada