421 Baseline Rd

Boulder, CO 80302

$2,700,000
Last Sold Price
5
Beds
4,101 Sq. Ft.
$658 / Sq. Ft.
4,101
Sq. Ft.
$658
per Sq. Ft.
Get preapproved with Rocket Mortgage1
Sold 6/28/23
Sold 6/28/23
a front view of a house
a view of a house with a backyard
a view of a yard with wooden fence
a view of a balcony with wooden floor
a view of a building with a window
a view of a backyard with plants and a patio
a view of outdoor sitting space
a view of a outdoor space
a view of a house with potted plants and a table and chair
a view of a backyard with plants and a patio
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Description

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....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.
  1. Listed by Brian Hellwig • RE/MAX of Boulder, Inc
    P: (303)-818-6592 C: (303)-818-6592 brianhellwig@boulderco.com
  2. Listed by Brian Hellwig • RE/MAX of Boulder, Inc
    P: (303)-818-6592 C: (303)-818-6592 brianhellwig@boulderco.com

Property Details for 421 Baseline Road

Locale
Boulder
Description 1
House
LISTING UPDATED: 10/20/2025 07:42 PM

Property Details for 421 Baseline Road

StatusSold
MLS #982962
Days on Compass115
Taxes$10,656 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family Residence
Year Built1956
Lot Size0.37 AC / 16,117 SF
CountyBoulder County
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Location

Listing Courtesy of RE/MAX of Boulder, Inc, Brian Hellwig; RE/MAX of Boulder, Inc, Brian Hellwig

Sold By Coldwell Banker Realty 02, Kiki Kidder

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Building Information for 421 Baseline Road

Stories-Year Built1956Building Size-Lot Size0.37 AC / 16,117 SF

Payment Calculator

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$14,047 per month

30 year fixed, 6.15% Interest

Principal and Interest

$13,159

Property Taxes

$888

HOA Dues

$0

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Property Information for 421 Baseline Road

Summary
Location and General Information
  • Latitude: 40.00
  • Longitude: -105.29
Parking
  • Total Parking: 2.00
Taxes and HOA Information
  • Has HOA: No
  • HOA Fee: $.00
  • Legal Description: LOT 11 LESS TRI IN NWLY PT WILLOWBROOK & TRI IN SELY PT OF TRACT 2126 & TRACT 2199 36-1N-71
  • Tax Information: No
  • HOA2 Fee Amount: $0
  • Tax Year: 2022
  • Tax Annual Amount: $10,656
  • Parcel Number: R0003177
Property
Lot Information
  • Lot Improvements: Cul-De-Sac, Wooded
  • Lot Size Area: 15,927.00
  • Has Irrigation Water Rights: No
  • Has Improvements: No
  • Vegetation: Wooded
Property and Assessments
  • Total Finished Area Source: Other
  • Living SqFt: 3895
  • Above Grade Finished Area Source: 3895
  • Sq Ft Apx: 0
  • Total Finished Area: 3895
  • Property Attached YN: No
  • Are Ditches Active: No
  • New Construction YN: No
  • Levels: One
Utilities
  • Electric: Xcel
  • Sewer: Public Sewer
  • Green Energy Efficient: Southern Exposure
Interior and Exterior Features
Exterior Features
  • Construction Materials: Frame, Brick
  • Exterior Features: Balcony
Interior Features
  • Laundry Features: Electric Range, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Disposal
  • Window Features: Window Coverings
  • Fireplaces 1: Two or More, Gas, Living Room, Bedroom, Basement
  • All Bedrooms Conform: Yes
  • Full Bathrooms: 1
  • Half Bathrooms: 0
  • Rough-in Bathrooms: 0
  • Three Quarters Bathrooms: 2
  • Baths Full Additional: 0
  • Baths Full Basement: 0
  • Baths Full Upper: 0
  • Baths Full Main: 1
  • Baths Full Lower: 0
  • Baths Half Additional: 0
  • Baths Half Basement: 0
  • Baths Half Upper: 0
  • Baths Half Main: 0
  • Baths Half Lower: 0
  • Baths Three Quarters Additional: 0
  • Baths Three Quarters Basement: 0
  • Baths Three Quarters Lower: 1
  • Baths Three Quarters Upper: 0
  • Baths Three Quarters Main: 1
Room Information
Room 1
  • RoomDescription: Wood
  • RoomLength: 10.0
  • RoomLevel: Lower
  • RoomType: Bedroom 2
  • RoomWidth: 10.0
Room 2
  • RoomDescription: Carpet
  • RoomLength: 11.0
  • RoomLevel: Lower
  • RoomType: Bedroom 3
  • RoomWidth: 9.0
Room 3
  • RoomDescription: Wood
  • RoomLength: 15.0
  • RoomLevel: Lower
  • RoomType: Bedroom 4
  • RoomWidth: 10.0
Room 4
  • RoomLength: 21.0
  • RoomLevel: Main
  • RoomType: Bedroom 5
  • RoomWidth: 12.0
Room 5
  • RoomDescription: Carpet
  • RoomLength: 12.0
  • RoomLevel: Main
  • RoomType: Dining Room
  • RoomWidth: 10.0
Room 6
  • RoomDescription: Tile
  • RoomLength: 30.0
  • RoomLevel: Lower
  • RoomType: Family Room
  • RoomWidth: 24.0
Room 7
  • RoomDescription: Wood
  • RoomLength: 17.0
  • RoomLevel: Main
  • RoomType: Kitchen
  • RoomWidth: 9.0
Room 8
  • RoomDescription: Carpet
  • RoomLength: 26.0
  • RoomLevel: Main
  • RoomType: Living Room
  • RoomWidth: 15.0
Room 9
  • RoomDescription: Carpet
  • RoomLength: 33.0
  • RoomLevel: Main
  • RoomType: Primary Bedroom
  • RoomWidth: 15.0
Room 10
  • RoomDescription: Wood
  • RoomLength: 19.0
  • RoomLevel: Lower
  • RoomType: Study
  • RoomWidth: 16.0
Rental
Rental Information
  • Horse YN: No
  • Occupant Type: Tenant

Property History for 421 Baseline Road

DateEvent & SourcePriceAppreciation
Jun 28, 2023

Sold (Public Record)

Public Record #1514730216

$2,700,000—
DateEvent & SourcePrice
06/28/2023

Sold (Public Record)

Public Record #1514730216

$2,700,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 421 Baseline Road

Taxable ValueLand$120,639Additions$13,404Total$134,043
Tax Record2025$12,781 ($1,065 / month)
Home Facts
Beds4Baths1.8Total Finished SqFt3,632 SqFtAbove Grade Finished SqFt1,904 SqFtFinished Basement SqFt1,728 SqFtStories1Lot Size15,943 SqFtStyleSingle Family ResidenceYear Built1956Year Renovated1975Zoning1112CountyBOULDERAPN1461-36-4-30-009

Schools near 421 Baseline Road

This home is within Boulder Valley Re 2 School District.
Rating
School
Type
Grades
Distance
Flatirons Elementary School
Public - K to 5
Manhattan Middle School Of The Arts And Academics
Public - 6 to 8
Boulder High School
Public - 9 to 12
University Hill Elementary School
Public - PK to 5
Rating
School
Distance
Flatirons Elementary School
PublicK to 5

Manhattan Middle School Of The Arts And Academics
Public6 to 8

Boulder High School
Public9 to 12

University Hill Elementary School
PublicPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of RE/MAX of Boulder, Inc, Brian Hellwig; RE/MAX of Boulder, Inc, Brian Hellwig

Based on information submitted to the MLS GRID as of 10/20/2025 07:42 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.