Seller's Agent in 2025
Leyla Steele
RE/MAX
(303) 859-3110
2 in this area
27 Total Sales
550 College Ave Boulder, CO 80302
University Hill NeighborhoodEstimated Value: $1,873,000 - $2,117,000
4
Beds
3
Baths
2,567
Sq Ft
$783/Sq Ft
Est. Value
Highlights
- Open Floorplan
- Deck
- Wood Flooring
- Flatirons Elementary School Rated A
- Great Room with Fireplace
- No HOA
About This Home
As of March 2025Walk 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.
Last Agent to Sell the Property
RE/MAX Alliance-Boulder Brokerage Phone: 3038593110 License #100027173 Listed on: 01/30/2025
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $12,697
Year Built
- Built in 1968
Lot Details
- 6,534 Sq Ft Lot
- Southern Exposure
- Wood Fence
Parking
- Carport
Home Design
- Composition Roof
- Wood Siding
Interior Spaces
- 2,567 Sq Ft Home
- 2-Story Property
- Open Floorplan
- Beamed Ceilings
- Window Treatments
- Great Room with Fireplace
- Family Room
- Living Room
- Dining Room
Kitchen
- Eat-In Kitchen
- Microwave
- Dishwasher
- Disposal
Flooring
- Wood
- Painted or Stained Flooring
Bedrooms and Bathrooms
- 4 Bedrooms
- Walk-In Closet
Laundry
- Laundry Room
- Dryer
- Washer
- Sink Near Laundry
Outdoor Features
- Balcony
- Deck
- Patio
Schools
- Flatirons Elementary School
- Manhattan Middle School
- Boulder High School
Utilities
- Forced Air Heating and Cooling System
- Cooling System Mounted To A Wall/Window
- Heat Pump System
- Radiant Heating System
Community Details
- No Home Owners Association
- Built by Charles Haertling
- Geneva Park Chautauqua Subdivision
Listing and Financial Details
- Assessor Parcel Number R0003318
Ownership History
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Jan 30, 2025
Closed on
Mar 12, 2025
Sold by
550 College Llc
Bought by
Ravenscroft Thomas and Cooper Eve Bonser
Seller's Agent
Leyla Steele
RE/MAX Alliance-Boulder
Buyer's Agent
Ann Slusher
List Price
$2,195,000
Sold Price
$2,150,000
Premium/Discount to List
-$45,000
-2.05%
Views
49
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$141,133
Avg. Annual Appreciation
-5.83%
Original Mortgage
$1,500,000
Outstanding Balance
$1,486,353
Interest Rate
5.38%
Mortgage Type
New Conventional
Estimated Equity
$522,514
Purchase Details
Listed on
Oct 13, 2022
Closed on
Nov 15, 2022
Sold by
Ellesworth Kate
Bought by
550 College Llc
Seller's Agent
Zachary Zeldner
Compass - Boulder
List Price
$1,995,000
Sold Price
$1,995,000
Views
9
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
3.24%
Purchase Details
Listed on
Aug 4, 2021
Closed on
Sep 7, 2021
Sold by
Viola E Haertling Living Trust
Bought by
Ellesworth Kate
Seller's Agent
Zachary Zeldner
Compass - Boulder
Buyer's Agent
Timothy Shea
Compass - Boulder
List Price
$1,850,000
Sold Price
$2,225,000
Premium/Discount to List
$375,000
20.27%
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
-8.76%
Original Mortgage
$1,780,000
Interest Rate
2.62%
Mortgage Type
Adjustable Rate Mortgage/ARM
Purchase Details
Closed on
Jun 4, 2009
Sold by
Haertling Viola E
Bought by
Viola E Haertling Living Trust
Purchase Details
Closed on
Mar 7, 1985
Bought by
Haertling Viola E Living Trust
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Home Values in the Area
Average Home Value in this Area
Purchase History
| Date | Buyer | Sale Price | Title Company |
|---|---|---|---|
| Ravenscroft Thomas | $2,150,000 | First American Title | |
| 550 College Llc | -- | None Listed On Document | |
| Ellesworth Kate | $2,225,000 | Fidelity National Title | |
| Viola E Haertling Living Trust | -- | None Available | |
| Haertling Viola E Living Trust | -- | -- |
Source: Public Records
Mortgage History
| Date | Status | Borrower | Loan Amount |
|---|---|---|---|
| Open | Ravenscroft Thomas | $1,500,000 | |
| Previous Owner | Ellesworth Kate | $1,780,000 |
Source: Public Records
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 03/20/2025 03/20/25 | Sold | $2,150,000 | -2.1% | $838 / Sq Ft | |
| 01/30/2025 01/30/25 | For Sale | $2,195,000 | +10.0% | $855 / Sq Ft | |
| 11/15/2022 11/15/22 | Sold | $1,995,000 | 0.0% | $782 / Sq Ft | View Prior Sale |
| 10/13/2022 10/13/22 | For Sale | $1,995,000 | -10.3% | $782 / Sq Ft | |
| 12/06/2021 12/06/21 | Off Market | $2,225,000 | -- | -- | |
| 09/07/2021 09/07/21 | Sold | $2,225,000 | +20.3% | $873 / Sq Ft | View Prior Sale |
| 08/11/2021 08/11/21 | Pending | -- | -- | -- | |
| 08/04/2021 08/04/21 | For Sale | $1,850,000 | -- | $725 / Sq Ft |
Source: IRES MLS
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $12,845 | $141,419 | $91,013 | $50,406 |
| 2024 | $12,845 | $141,419 | $91,013 | $50,406 |
| 2023 | $12,697 | $146,154 | $97,237 | $52,602 |
| 2022 | $9,057 | $96,723 | $79,223 | $17,500 |
| 2021 | $8,640 | $99,507 | $81,503 | $18,004 |
| 2020 | $8,496 | $97,605 | $77,077 | $20,528 |
| 2019 | $7,753 | $97,605 | $77,077 | $20,528 |
| 2018 | $6,862 | $86,350 | $48,528 | $37,822 |
| 2017 | $6,648 | $95,464 | $53,650 | $41,814 |
| 2016 | $5,643 | $73,144 | $32,397 | $40,747 |
| 2015 | $5,343 | $60,543 | $32,954 | $27,589 |
| 2014 | $4,421 | $60,543 | $32,954 | $27,589 |
Source: Public Records
Agents Affiliated with this Home
-
Leyla Steele
-
Ann Slusher
Buyer's Agent in 2025
Ann Slusher
(720) 333-6239
1 in this area
40 Total Sales
-
Zachary Zeldner
Seller's Agent in 2022
Zachary Zeldner
Compass - Boulder
(720) 480-7650
29 in this area
248 Total Sales
-
Timothy Shea
Buyer's Agent in 2021
Timothy Shea
Compass - Boulder
(303) 487-5472
5 in this area
45 Total Sales
Map
Source: IRES MLS
MLS Number: IRE1025514
APN: 1461364-05-013
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Information source: Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules © Copyright IRES.
Based on information submitted to the MLS GRID. 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. Some IDX listings have been excluded from this website. Listing 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.
Information deemed reliable but not guaranteed by the MLS.
Based on information submitted to the MLS GRID
Listings courtesy of IRES MLS as distributed by MLS GRID
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