See Home Value
$2,150,000
● House - Off Market

550 College Ave

Boulder, CO 80302
bedrooms
4 Beds
bathrooms
2 Baths
square feet
2,567 Ft²
$11,836
Est. Monthly

About This Property

Walk to Alpine Modern for coffee, Chautauqua Park for a hike, CU for a performance and downtown Pearl Street for shopping and restaurants, all from the coolest house in town. Designed & built by mid-century modern architect Charles Haertling for the Wilson family, this landmarked home was inhabited by the Haertling family from 1973 - 2021. Known for his organic architecture, Haertling designed homes to feel at one with the natural surroundings and this one exemplifies this concept in an inspiring way. Note the clover shaped symmetry, cascading roof and ubiquitous nautilus design structures topping the support beams. The open concept main living area is created for comfort and easy entertaining with wood-burning fireplace, vaulted beamed ceilings, clerestory windows and abundant southern light, accessing two expansive decks & terraced gardens that substantially extend the indoor living space. The kitchen is tucked behind the curved clover petal wall of the dining area with bar seating, open shelving, counter height windows, with vintage tile on floor and countertops. The primary suite is a private perch in the peak of the roof, another bedroom with private balcony is on the main level and two large bedrooms are on the garden level, each with private outdoor access, anchored by a family room that accesses a south-facing backyard patio. Also on this level: cozy office/yoga room. Recent updates, including new A/C, perimeter fence, Philips Hue remote lighting and a mini-split in the enclosed primary suite, make this a move-in ready property where one can immediately begin enjoying the amazing lifestyle this coveted location offers. Walk to miles of open space trails and a remarkable variety of nearby shops and restaurants, not to mention Boulder's famed downtown Pearl Street, CU Boulder and Chautauqua Park for concerts, movies, lectures, sledding, tennis and so much more. With details too numerous to list, please visit Boulder Luxury Group website for more information.
Unit Size
2,567 Ft²
Days on Market
-
Land Size
0.15 acres
Price per sqft
$855
Property Type
House
Property Taxes
$1,058
HOA Dues
-
Year Built
1968

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Last updated: 7 months ago (IRES MLS #IRE1025514)

Price History

Date / Event Date Event Price
Mar 20, 2025 Sold
Sold
Jan 30, 2025 Listed by RE/MAX Alliance-Boulder $2,195,000
Listed by RE/MAX Alliance-Boulder
Walk to Alpine Modern for coffee, Chautauqua Park for a hike, CU for a performance and downtown Pearl Street for shopping and restaurants, all from the coolest house in town. Designed & built by mid-century modern architect Charles Haertling for the Wilson family, this landmarked home was inhabited by the Haertling family from 1973 - 2021. Known for his organic architecture, Haertling designed homes to feel at one with the natural surroundings and this one exemplifies this concept in an inspiring way. Note the clover shaped symmetry, cascading roof and ubiquitous nautilus design structures topping the support beams. The open concept main living area is created for comfort and easy entertaining with wood-burning fireplace, vaulted beamed ceilings, clerestory windows and abundant southern light, accessing two expansive decks & terraced gardens that substantially extend the indoor living space. The kitchen is tucked behind the curved clover petal wall of the dining area with bar seating, open shelving, counter height windows, with vintage tile on floor and countertops. The primary suite is a private perch in the peak of the roof, another bedroom with private balcony is on the main level and two large bedrooms are on the garden level, each with private outdoor access, anchored by a family room that accesses a south-facing backyard patio. Also on this level: cozy office/yoga room. Recent updates, including new A/C, perimeter fence, Philips Hue remote lighting and a mini-split in the enclosed primary suite, make this a move-in ready property where one can immediately begin enjoying the amazing lifestyle this coveted location offers. Walk to miles of open space trails and a remarkable variety of nearby shops and restaurants, not to mention Boulder's famed downtown Pearl Street, CU Boulder and Chautauqua Park for concerts, movies, lectures, sledding, tennis and so much more. With details too numerous to list, please visit Boulder Luxury Group website for more information.
Nov 15, 2022 Sold
Sold
Oct 13, 2022 Listed by Compass - Boulder $1,995,000
Listed by Compass - Boulder
Live at one with nature in the landmarked Wilson-Haertling House, one of Boulder's most architecturally significant residences. Designed and built by Charles Haertling, this four-bedroom, three-bathroom landmark embodies the famed architect's organic, modern style, inspired by masters Frank Lloyd Wright and Bruce Goff. From the home's organic clover-shaped symmetry to the nautilus-topped support beams, the 2,550-square-foot architectural masterpiece references nature throughout. The one-of-a-kind home features vaulted ceilings, hardwood floors, abundant windows overlooking decks and a verdant, terraced yard. The great room offers a fireplace, open kitchen and indoor-outdoor flow. Beds and baths on three levels. Beautifully maintained and updated. Located in the gorgeous Flagstaff neighborhood, steps to trails, Chautauqua attractions & Flagstaff. The Fox Theater, CU Campus, Pearl Street and Downtown Boulder, CO are all nearby. Open House Saturday 10/15 from 2-4pm and Sunday 10/16 from 1-3pm.
Sep 8, 2021 Sold
Sold
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Property Highlights

Air Conditioning
Fireplace

Building Info

Overview

    General

  • Year Built: 1968
  • Effective Year Built: 1980
  • Building Count: 1
  • Total Rooms: 8
  • Bedroom Count: 4
  • Bathroom Count: 3
  • Full Bathrooms: 2
  • Partial Bathrooms: 3
  • Building Condition: 3
  • Building Quality: 4
  • Construction Type: 6
  • Building Style: 2
  • Exterior Walls Type: 16
  • Interior Walls Type: 3
  • Roof Shape Type: 0
  • Roof Cover Type: 14
  • Floor Count: 200
  • Living Units: 1
  • Business/Commerical Units Count: 10
  • Floor Cover: 0
  • Basement Type: 6
  • Basement Area: 1,125
  • Garage Type: 3
  • Garage Square Area: 283
  • Parking Space Count: 1
  • Patio Type: 69
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 6,697
  • Total Building Area: 2,550
  • Gross Building Area: 2,550
  • Building Area: 1,620
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 1
  • Heating: 4
  • Heated Square Feet: 1,620
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: GENEVA PARK - BO
  • Land Acres: 0000000154
  • Standard Land Use Code: 1001
  • County Land Use Code: 1112
  • Legal Description 1: LOT 4 & N 1/2 VAC ALLEY LOT 4 BLK 1 GENEVA PARK

Neighborhood

  • School District Name: Boulder Valley School District RE-2
  • Census Tract: 012201

Geography

  • Assessors Map Reference: B17-J
  • Account Number: R0003318
  • Parcel: R0003318
  • Block: 1
  • Lot: 4
  • Meridian: SEC 36 TWN 1N RNG 71
  • Municipality: BOULDER
  • Latitude: 40.007
  • Longitude: -105.288

    Address

  • Full Address: 550 College Ave
  • Address - House Number: 550
  • Address - Street Name: College
  • Address - Suffix Type: Ave
  • State: CO
  • City Name: Boulder
  • Carrier Code: C040
  • 4-Digit Zip Code: 7134
  • Zip Code: 80302

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $905,708
  • Tax Rate Code Area: 00-010

    Appraisal Valuation

  • Standard Deviation: 0.0686
  • Valuation Date: Apr 03, 2024
  • Confidence Score: 96
  • Final Value: 1,936,289
  • High Value: 2,069,176
  • Low Value: 1,803,402

    Market Valuation

  • Market Total Value: $2,236,400
  • Market Land Value: $1,451,300
  • Market Improvement Value: $785,100

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $151,292
  • Assessed Land Value: $98,180
  • Assessed Improvements Value: $53,112

    Sales

  • Current Sale Contract Date: Sep 07, 2021
  • Current Sale Recording Date: Sep 08, 2021
  • Current Sale Price:
  • Current Sale Document Type: 68
  • Current Sale Input Document Number: 3912476
  • Previous Sale Recording Date: Mar 07, 1985
  • Previous Sale Contract Date: Mar 07, 1985
  • Previous Sale Document Type: 27

    Financing

  • First Mortgage Financing Type: ADJ
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Central Boulder


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Frequently Asked Questions

When was property at 550 College Avenue built and last sold?
The property at 550 College Avenue was built in 1968 and last sold on Sep 7, 2021 for $2,225,000.
How much is this home worth?
The estimated value of the home located at 550 College Avenue is $0.
What are some comparable homes to 550 College Avenue?
There are currently no comparable homes to 550 College Avenue.