For sale
$4,999,999
Est. $32,259/mo —
5
bd
•
4.5 ba
•
7,177
sq ft

521 Hawthorn Ave, Boulder, CO 80304

map-entry

About this home

Single-familyProperty Type
2007Year Built
10,724 sq ftLot Size
$697Price/Sq.Ft.
2 car garageParking
Listed by The Zach Zeldner The Zach Zeldner Team • Compass - Boulder
Listed by Ethan Bullock • Compass - Boulder
Contact: 3035014959
Listing updated:
Redfin checked: a few seconds ago
•Source:IRES as Distributed by MLS Grid #1052786
227 days on Redfin • 657 views • 19 favorites

Payment calculator

$32,259 per month

Principal and interest$27,627
Property taxes
HOA dues
Home insurance
Utilities
Down payment
20% ($1,000,000)
Home price
$4,999,999
Loan details
30-yr fixed, 7.38%
5 minutes to get started. No credit impact. 

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Open houses
No upcoming open houses.

Around this home

Schools

Foothill Elementary School

Public K-5 • Assigned • 0.3mi

9/10
Casey Middle School

Public 6-8 • Assigned • 1.0mi

5/10
Boulder High School

Public 9-12 • Assigned • 1.7mi

9/10
Provided by GreatSchools
About
Newlands

Provided by Walk Score and Local Logic

Offer insights

521 Hawthorn Ave · $4,999,999
$4.85M and above
75% chance or better to win
Why $4.85M+ is a strong offer
DAYS ON MARKET
228 days
The average home goes pending in 53 days.
SALE-TO-LIST
97.8%
Most homes are selling 2% below list price.
About offer insights

Property details

Kitchen

Kitchen

Bathroom

Bathroom

Bedroom

Bedroom

Living

Living

Dining

Dining

  • Interior features
  • Eat-in kitchen
  • Separate dining room
  • Open floorplan
  • Pantry
  • Walk-in closets
  • Kitchen island
  • High ceilings
  • Window coverings
  • Fire alarm
  • Bedrooms
  • 5 bedrooms (all conforming)
  • Bathrooms
  • 3 full bathrooms
  • 1 three-quarter bathroom
  • 1 half bathroom
  • 2 full baths upstairs
  • 1 full bath in basement
  • 1 half bath on main level
  • 1 three-quarter bath upstairs
  • Kitchen
  • Gas range
  • Double oven
  • Dishwasher
  • Refrigerator
  • Microwave
  • Disposal
  • Laundry & utility
  • Washer
  • Dryer
  • Flooring
  • Wood flooring
  • Heating & cooling
  • Zoned heating
  • Radiant heating
  • Humidity control
  • Central air conditioning
  • Gas service by Xcel

Sale and tax history for 521 Hawthorn Ave

Public record

Beds
5
Baths
4.5
Stories
—
Lot width
—
Lot depth
—
Lot size
10,724 Sq. Ft.
Year renovated
2007
Finished Sq. Ft.
6,627
Unfinished Sq. Ft.
—
Total Sq. Ft.
6,627
Year built
2007
Style
Single Family Residential
County
Boulder County
APN
R0511527
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 2, 2026.

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

4/10 Fire Factor

2% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 92° expected this year, 18 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

2/10 Air Factor

2 unhealthy days expected this year, 2 days in 30 years

Provided by First Street

Historical weather

Boulder, CO • 80304
Average low and high temperatures (°F)
44
22
51
29
63
40
64
40
70
47
83
57
90
64
84
60
76
53
67
45
54
33
53
33
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

82/ 100

Very good sunlight

Sunscore

This home receives average direct sun exposure in Boulder. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.5 hrs
5.7 hrs
JuneDecember
Provided by Shadowmap

Redfin Estimate for 521 Hawthorn Ave

We cannot show automated home-value estimates for this home. 
 

Nearby homes have recently sold between $2,330,000 and $6,130,000.

Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $2.3M to $6.1M.

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Details provided by IRES as Distributed by MLS Grid and may not match the public record. Learn more.
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GreatSchools Ratings provided by GreatSchools.org.