Recently Viewed Properties
See This Home
Save This Listing
Close

View All Photos

$5,095,000

  • For Sale
  • Active
  • Single Family
  • 5 Beds
  • 3 Full Baths
  • 2 Partial Baths
  • 7,177 Sq. Ft.
  • 2 Car Garage
See This Home
Save This Home
See This Home
Save This Home
521 Hawthorn Ave, Boulder, COVideo Tour of 521 Hawthorn Ave, Boulder, CO.
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 own bathroom and separate exterior entrance. Outside, the expansive and beautifully landscaped lot features a front porch, backyard patio off the French doors, and a brand-new hot tub, all sheltered and private. With meaningful scale, genuine warmth, and one of Boulder's most sought-after addresses, 521 Hawthorn Avenue is the kind of home people tend to stay in for a long time.

Full Property Details for 521 Hawthorn Ave

General

  • Price: $5,095,000
  • Taxes: $38,579 (2025)
  • Status: Active
  • Type: Single Family
  • Source: IRES
  • MLS ID: 1052786
  • Updated: 3/5/2026
  • Added to Site: 46 day(s) ago

Interior

  • Interior Features: Eat-In Kitchen, Separate Dining Room, Open Floorplan, Pantry, Wood Windows, Walk-In Closet(s), Kitchen Island, High Ceilings
  • Fireplace: Yes
  • Fireplace(s): Gas, Living Room
  • Appliances: Gas Range, Double Oven, Dishwasher, Refrigerator, Washer, Dryer, Microwave, Disposal, Fire Alarm
  • Flooring: Wood

Rooms

Bathrooms

  • Total Bathrooms: 5
  • Full Bathrooms: 3
  • 3/4 Bathrooms: 1
  • Half Bathrooms: 1
  • Basement Baths: 1

Bedrooms

  • Total Bedrooms: 5

Exterior

  • Exterior Features: Sprinkler System, Hot Tub
  • Porch/Patio/Deck: Patio, Deck

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 2
  • Parking Features: Attached
  • Garage Description: Attached

Location

  • Area: Boulder
  • County: Boulder
  • Subdivision: Newlands

School Information

  • School District: Boulder Valley Dist RE2
  • Elementary School: Foothill
  • Middle School: Casey
  • High School: Boulder

Heating & Cooling

  • Cooling Type: Central Air
  • Heating Type: Zoned, Radiant, Humidity Control

Utilities

  • Gas: Yes
  • Gas: Xcel
  • Sewer: Public Sewer
  • Water: City
  • Utility Description: Natural Gas Available, Electricity Available

Structural Information

  • Construction: Wood Siding, Wood Shingle, Painted/Stained
  • Exterior Const.: Wood Siding, Wood Shingle, Painted/Stained
  • Basement: Yes
  • Basement Desc.: Full, Partially Finished, Walk-Out Access
  • Roof: Composition
  • Windows: Window Coverings
  • Square Feet: 7,177
  • Sq. Ft. Source: Other
  • Living Area: 6,602 Sq. Ft.
  • Year Built: 2007

Lot Features

  • Property View: Hills
  • Lot Size (Acres): 0.25
  • Lot Size (Sq. Ft.): 10,724
  • Fence: Yes
  • Lot Features: Evergreen Trees, Deciduous Trees, Level, House Faces South, Paved, Curbs, Sidewalks
  • Potential Use: Single-Family
  • Zoning: SFR
  • Fencing (Description): Partial, Wood

Green Features

  • Energy Efficient: Southern Exposure, Windows

Financial Considerations

  • Tax Amount: $38,579
  • Tax Year: 2025
  • Terms: Cash, Conventional

Disclosures and Reports

  • Special Conditions: Private Owner
  • Exclusions: Owner's Personal Property
  • Property ID: R0511527

Listed by Compass - Boulder (303) 487-5472

Quickly Find Out More

* Indicates a required field

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Send Message, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If an Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby’s International Realty®). I acknowledge that I have read and agree to the Terms of Use and Privacy Notice.

We Value Your Privacy

Listing agents

— 521 Hawthorn Ave —

  • Compass - Boulder

    303-487-5472

  • Compass - Boulder

    303-487-5472

3035014959

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 521 Hawthorn Ave

School District:Boulder Valley School District Re-2
NameGradesDistance
Foothill Elementary School
1001 Hawthorn Avenue, Boulder, CO 80304
K-50.3 mi
Casey Middle School
1301 High Street, Boulder, CO 80304
6-81 mi
Boulder High School
1604 Arapahoe Avenue, Boulder, CO 80302
9-121.7 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 521 Hawthorn Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
3/05/2026
Listed
$5,095,000
63.17%
MLS
8/08/2008
Sold
$3,122,500
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 521 Hawthorn Ave

Year
Property Taxes
Change
Tax Assessment
Change
2025
$38,579
2%
$404,606
-6%
2024
$37,825
2%
$430,401
-1%
2023
$37,169
26%
$434,087
27%
2021
$29,403
-5%
$341,598
3%
2022
$30,835
5%
$332,043
15%
2021
$29,403
24%
$289,167
6%
2018
$23,655
3%
$272,837
—
2017
$22,915
-8%
$272,837
-6%
2019
$24,785
27%
$289,167
28%
2016
$19,535
6%
$225,666
—
2015
$18,498
25%
$225,666
31%
2014
$14,776
2%
$171,856
—
2013
$14,450
—
$171,856
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 521 Hawthorn Ave

$
Down Payment
%
$
%

$
$

*These costs are estimates, and the interest rates assume exceptional credit standing.

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Listed by Compass - Boulder (303) 487-5472

Similar Properties near 521 Hawthorn Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

6553 Sunshine Canyon Dr, Boulder, CO 80302 - Photo 1
$5,000,000

6553 Sunshine Canyon Dr  Boulder, CO 80302

  • Single Family
  • Active
  • Updated 13 days ago
  • 4
    Beds
  • 6
    Total Baths
  • 5,939
    Sq. Ft.
  • MLS # 1053732
Listed by Compass - Boulder
503 Hawthorn Ave, Boulder, CO 80304 - Photo 1
$5,499,000

503 Hawthorn Ave  Boulder, CO 80304

  • Single Family
  • Active
  • 6
    Beds
  • 6
    Total Baths
  • 5,670
    Sq. Ft.
  • MLS # 1050464
Listed by Compass - Boulder
640 Iris Ave, Boulder, CO 80304 - Photo 1
$5,500,000
Open House

640 Iris Ave  Boulder, CO 80304

  • Single Family
  • Active
  • 4
    Beds
  • 5
    Total Baths
  • 5,226
    Sq. Ft.
  • MLS # 1051046
Listed by The Agency - Boulder
3189 5th St, Boulder, CO 80304 - Photo 1
$5,995,000

3189 5th St  Boulder, CO 80304

  • Single Family
  • Active
  • 5
    Beds
  • 6
    Total Baths
  • 5,394
    Sq. Ft.
  • MLS # 1043092
Listed by Compass - Boulder

Just Listed near 521 Hawthorn Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

2040 Shamrock Dr, Superior, CO 80027 - Photo 1 New to Website
$327,500

2040 Shamrock Dr  Superior, CO 80027

  • Single Family
  • Active
  • Updated 12 hours ago
  • 1
    Bed
  • 1
    Total Bath
  • 799
    Sq. Ft.
  • MLS # 1057030
Listed by The Bernardi Group (303) 402-6000
2855 Rock Creek Cir, Superior, CO 80027 - Photo 1 New to Website
$505,000

2855 Rock Creek Cir  #105  Superior, CO 80027

  • Townhouse
  • Active
  • Updated 3 days ago
  • 2
    Beds
  • 3
    Total Baths
  • 1,537
    Sq. Ft.
  • MLS # 1056668
Listed by WK Real Estate
2965 Bella Pl, Superior, CO 80027 - Photo 1 New to Website
$1,795,000

2965 Bella Pl  Superior, CO 80027

  • Single Family
  • Active
  • Updated 4 days ago
  • 4
    Beds
  • 5
    Total Baths
  • 4,284
    Sq. Ft.
  • MLS # 1056765
Listed by Compass - Boulder
120 E Douglas St, Superior, CO 80027 - Photo 1 New to Website
$650,000

120 E Douglas St  Superior, CO 80027

  • Single Family
  • Active
  • Updated 5 days ago
  • 2
    Beds
  • 3
    Total Baths
  • 1,138
    Sq. Ft.
  • MLS # 8967080
Listed by Guide Real Estate

Price Reduced near 521 Hawthorn Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

980 Promenade Dr, Superior, CO 80027 - Photo 1 Price Reduced
-$10,000 (-1.05%)
$940,000

980 Promenade Dr  Superior, CO 80027

  • Single Family
  • Active
  • Updated 4 days ago
  • 3
    Beds
  • 3
    Total Baths
  • 3,311
    Sq. Ft.
  • MLS # 7601580
Listed by New Door Group (303) 859-6891
2321 Superior Dr, Superior, CO 80027 - Photo 1 Price Reduced
-$10,000 (-1.03%)
$965,000

2321 Superior Dr  Superior, CO 80027

  • Single Family
  • Active
  • Updated 4 days ago
  • 4
    Beds
  • 3
    Total Baths
  • 3,548
    Sq. Ft.
  • MLS # 2243687
Listed by New Door Group (303) 859-6891
506 Promenade Dr, Superior, CO 80027 - Photo 1 Coming Soon
$709,000

506 Promenade Dr  Superior, CO 80027

  • Townhouse
  • Coming Soon
  • 2
    Beds
  • 3
    Total Baths
  • 1,958
    Sq. Ft.
  • MLS # 1054089
Listed by RE/MAX Alliance-Nederland
2673 Nicholas Wy, Superior, CO 80027 - Photo 1
$844,000

2673 Nicholas Wy  Superior, CO 80027

  • Townhouse
  • Active
  • 3
    Beds
  • 4
    Total Baths
  • 1,847
    Sq. Ft.
  • MLS # 1049337
Listed by RE/MAX of Boulder, Inc

Recent Sales near 521 Hawthorn Ave

This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.

2656 4th St, Boulder, CO 80304 - Photo 1 Sold
$5,850,000

2656 4th St  Boulder, CO 80304

  • Single Family
  • Closed
  • 6
    Beds
  • 6
    Total Baths
  • 4,814
    Sq. Ft.
  • MLS # 1045511
Listed by LIV Sotheby's Intl Realty
Sold by The Agency - Boulder
1650 Wilson Ct, Boulder, CO 80304 - Photo 1 Sold
$5,355,000

1650 Wilson Ct  Boulder, CO 80304

  • Single Family
  • Closed
  • 5
    Beds
  • 5
    Total Baths
  • 5,946
    Sq. Ft.
  • MLS # 1044983
Listed and Sold by Compass - Boulder
512 Marine St, Boulder, CO 80302 - Photo 1 Sold
$4,650,000

512 Marine St  Boulder, CO 80302

  • Single Family
  • Closed
  • 4
    Beds
  • 5
    Total Baths
  • 4,904
    Sq. Ft.
  • MLS # 1044486
Listed by RE/MAX of Boulder, Inc
Sold by RE/MAX of Boulder, Inc
8001 Fairview Rd, Boulder, CO 80303 - Photo 1 Sold
$5,500,000

8001 Fairview Rd  Boulder, CO 80303

  • Single Family
  • Closed
  • 6
    Beds
  • 10
    Total Baths
  • 10,457
    Sq. Ft.
  • MLS # 1043252
Listed by Compass - Boulder

521 Hawthorn Ave, Boulder, CO 80304 (MLS# 1052786) is a Single Family property with 5 bedrooms, 3 full bathrooms and 2 partial bathrooms. 521 Hawthorn Ave is currently listed for $5,095,000 and was received on March 05, 2026. Want to learn more about 521 Hawthorn Ave? Do you have questions about finding other Single Family real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.

Tour this property