Listing provided courtesy of Compass - Boulderas Distributed by MLSGrid- MLS# IR1052786MLS Provider

521 Hawthorn AvenueBoulder, CO 80304

Single Family · 5 Beds · 3 Full Baths · 1 Half Bath · 1 Three Quarter Bath · 7,177 Sq. ft. | 0.25 Acres
$4,999,999 Active

521 Hawthorn Avenue Overview

Time on Site:
118 days
Visits:
0

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.

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521 Hawthorn Avenue Facts & Features

  • Type Single Family
  • Sq. ft. 7,177
  • Price/Sq.ft. $697
  • Lot 0.25 Acres

Details

General

Association/HOA

  • Association: false

School Information

  • School District: Boulder Valley RE 2
  • Elementary School: Foothill
  • Middle Or Junior School: Casey
  • High School: Boulder

Listing Information

  • Concessions: No

Building Information

  • Year Built: 2007

Location/Region

  • Country: US
  • County Or Parish: Boulder
  • Subdivision Name: Newlands

Tax Information

  • Tax Annual Amount: 38579
  • Tax Year: 2025

General Information

  • Exclusions: Owner's Personal Property
  • Listing Terms: Cash,Conventional
  • Ownership: Individual
  • Parcel Number: R0511527
  • Possible Use: Residential
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Zoning: SFR

Interior

Parking Information

  • Garage Spaces: 2

Beds/Baths

  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms Three Quarter: 1
  • Bathrooms Total: 5
  • Bedrooms Total: 5

Building Interior

  • Above Grade Finished Area: 4775
  • Below Grade Finished Area: 1827
  • Building Area Source: Other
  • Building Area Total: 7177

General Information

  • Appliances: Dishwasher,Disposal,Double Oven,Dryer,Humidifier,Microwave,Oven,Refrigerator,Washer
  • Cooling: Central Air
  • Fireplace Features: Gas,Living Room
  • Flooring: Tile,Wood
  • Heating: Radiant
  • Interior Features: Eat-in Kitchen,Kitchen Island,Open Floorplan,Pantry,Walk-In Closet(s)
  • Levels: Two
  • Living Area: 6602
  • Main Level Bathrooms: 1
  • Main Level Bedrooms: 0
  • Security Features: Smoke Detector(s)
  • Window Features: Double Pane Windows,Window Coverings

Exterior

Parking Information

  • Parking Total: 2

Lot Information

  • Lot Features: Level,Sprinklers In Front
  • Lot Size Acres: 0.25
  • Lot Size Square Feet: 10724
  • Road Surface Type: Paved
  • Vegetation: Wooded
  • Water Source: Public

Waterfront/View

  • View: Mountain(s)

Building Exterior/Construction

  • Attached Garage: true
  • Construction Materials: Wood Siding
  • Direction Faces: South
  • Patio And Porch Features: Deck,Patio
  • Roof: Composition
  • Structure Type: House

General Information

  • Exterior Features: Spa/Hot Tub
  • Fencing: Fenced,Partial
  • Sewer: Public Sewer
  • Utilities: Electricity Available,Natural Gas Available

Room Information

Room: Bathroom Full

  • Level: Basement

Room: Bedroom

  • Level: Basement
  • Length: 15
  • Width: 18
  • Description: Carpet

Room: Game Room

  • Level: Basement
  • Length: 33
  • Width: 40
  • Description: Carpet

Room: Bathroom Half

  • Level: Main

Room: Dining Room

  • Level: Main
  • Length: 13
  • Width: 15
  • Description: Wood

Room: Family Room

  • Level: Main
  • Length: 17
  • Width: 24
  • Description: Wood

Room: Kitchen

  • Level: Main
  • Length: 14
  • Width: 25
  • Description: Wood

Room: Living Room

  • Level: Main
  • Length: 20
  • Width: 20
  • Description: Wood

Room: Bathroom Full

  • Level: Upper
  • Features: Primary Suite

Room: Bathroom Full

  • Level: Upper

Room: Bathroom Three Quarter

  • Level: Upper

Room: Bedroom

  • Level: Upper
  • Length: 19
  • Width: 17
  • Description: Wood
  • Features: Primary Suite

Room: Bedroom

  • Level: Upper
  • Length: 13
  • Width: 14
  • Description: Wood

Room: Bedroom

  • Level: Upper
  • Length: 13
  • Width: 14
  • Description: Wood

Room: Bedroom

  • Level: Upper
  • Length: 13
  • Width: 14
  • Description: Wood

Room: Laundry

  • Level: Upper
  • Length: 9
  • Width: 6
  • Description: Tile

Room: Office

  • Level: Upper
  • Length: 11
  • Width: 23
  • Description: Wood

521 Hawthorn Avenue Neighborhood

Community

80304 (Boulder) Demographics

41
Median Age
2,891
Population Density (per sq. mile)
81%
College Educated
$98,049
Estimated Median Income
7,931
Estimated Total Home Owners
3,417
Estimated Total Renters
70% / 30%
Estimated Owner / Renter Divide
2
Estimated Average Household Size
Community data courtesy of LiveBy, Inc.

Schools

School data courtesy of LiveBy, Inc. School ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating.

521 Hawthorn Avenue Monthly Cost

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* All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

521 Hawthorn Avenue Market Data

Based on the last 30 days in this zip code

$2,469,285
Average List Price
$798
Average Price per Square Foot
43
Properties Sold
109
Average Days on Market
242
Properties for Sale
Calculations provided by Reliance Network

521 Hawthorn Avenue History

Date Event Value Agent
5/3/2026Source: REColorado MLS Price Reduction
$4,999,999 -1.9%
3/5/2026Source: REColorado MLS Status Change
Active
3/3/2026Source: REColorado MLS Added to Database
March 03, 2026