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$4,999,999

Listing Price

5beds

3baths

6,602sqft

10,724sqft lot

521 Hawthorn Ave, Boulder, CO 80304

Member Features

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  • Full foreclosure details

  • Home value, equity and ownership info

  • Find homes priced below market

  • Get full access with a FREE Account

Already a member?

For Sale

Off Market

Single Family

Home type

757.35

Price / sqft

2007

Year built

Home Details

Situated on a rare 10,724 sq ft lot in Newlands, one of Boulder's most cherished neighborhoods, 521 Hawthorn Avenue offers a quiet, walkable setting tucked between North Boulder and downtown, steps from Ideal Market, Pearl Street, North Boulder Park, and the Goat Trail. Freshly refinished ebony-stained floors span the main level, grounded by radiant heat and framed by oversized windows, with crown molding and millwork executed consistently throughout. Dual-zone air conditioning, built-in humidification, and high-efficiency mechanical systems round out an elevated set of home systems. The front living room centers on a gas fireplace flanked by shuttered windows, while the adjacent dining room flows naturally toward the back of the home where a family room, oversized island kitchen, and sunny breakfast nook create the hub of daily life. A dedicated mid-flight home office, mudroom with heated garage access, and an intuitive main-level layout complete the picture. Upstairs, the primary suite occupies its own corner with a curved bay of windows, freestanding soaking tub, floor-to-ceiling tiled walk-in shower, marble countertops, and polished nickel fixtures. Three additional bedrooms, including one en-suite, a full hallway bathroom, and a conveniently located laundry room round out the upper level. The lower level is a full height daylight level with substantial natural light and functional living spaces, anchored by a large flexible great room and a private guest area with its ow

Interior Details

Square Feet
  • 6602

Bedrooms
  • 5

Bathrooms
  • 3

Heating
  • Has Heating:

    Yes

  • Heating Type:

    Radiant

Cooling
  • Has Cooling:

    Yes

  • Cooling Type:

    Central

Fuel
  • Has Fuel:

    No

  • Fuel Type:

    N/A

Basement
  • Has Basement:

    No

  • Basement Type:

    Partial

Flooring
  • Has Flooring:

    No

  • Flooring Type:

    N/A

Fireplace
  • Has Fireplace:

    Yes

  • Fireplace Type:

    N/A

Property Details

Lot Size
  • 10724

Water
  • No

Sewer
  • No

Parking
  • Type:

    Garage, Attached

  • Location:

    N/A

  • Status:

    N/A

  • Number of Spaces:

    2

Deck
  • N/A

Patio
  • N/A

Fence
  • N/A

Pool
  • N/A

Porch
  • N/A

Stoop
  • N/A

Breezeway
  • N/A

Construction Details

Number of Stories
  • 2

Style
  • A-frame

Exterior
  • Wood Shingle

Foundation
  • N/A

Roof
  • N/A

Roofing Material
  • Asphalt

Tax History

Year

Amount

Land

Improvement

Percent Change

Assessment

2019

$24,785

$115,687

$173,480

--%

$289,167

2019

$24,785

$115,687

$173,480

--%

$289,167

2018

$23,654

$109,152

$163,685

--%

$272,837

2017

$22,914

$109,152

$163,685

--%

$272,837

2016

$19,534

$79,600

$146,066

--%

$225,666

2014

$14,775

$55,720

$116,136

--%

$171,856

2013

$14,449

$55,720

$116,136

--%

$171,856

2012

$14,656

$38,128

$136,832

--%

$174,960

percent-home-icon

Average Home Price in 80304

Nearby Properties

Zip Code

Price

Bed

Bath

Sqft

Lot

Sold Date

$15,000,000

6 Beds

6.25 Baths

7,462 Sqft

29,715 Lot (sqft)

Sold 05/02/2026

$3,675,000

5 Beds

2 Baths

6,187 Sqft

9,513 Lot (sqft)

Sold 03/08/2026

$4,999,999

5 Beds

3 Baths

6,602 Sqft

10,724 Lot (sqft)

Sold 03/05/2026

$5,899,000

6 Beds

2 Baths

5,670 Sqft

11,032 Lot (sqft)

Sold 08/01/2025

percent-home-icon

Calculators

Mortgage

Mortgage Calculator

Calculate your monthly mortgage payments.
Household Income
70,000
$
Home price
4,999,999
$
Down payment
999,999.8
$
Mortgage Rate
6.5
%
Loan Term
Property Tax Rate
1.1
%
Homeowner's Insurance (Annual)
29,999.99
$
HOA (Monthly)
0
$
PMI
0
$
$32,366
Your Payment
Total Monthly Payment:$32,366
Percent of Income:555%
Affordable:No

Details for 521 HAWTHORN AVE

Property Debt

Foreclosure Contact Details