See Home Value
$1,230,000
● House - Off Market

285 31st St

Boulder, CO 80305
bedrooms
3 Beds
bathrooms
1 Bath
square feet
1,330 Ft²
$5,286
Est. Monthly

About This Property

Set on a quiet, tree-lined street in the heart of South Boulder, this beautifully reimagined 1955 ranch blends high-end modern design with timeless character-offering exceptional curb appeal and true turnkey living.With 1,330 sq ft of thoughtfully designed living spaces, this 3-bedroom, 2-bath home was fully expanded and remodeled in 2018 with meticulous attention to detail. Vaulted ceilings and hardwood floors create a bright, open feel, while the gourmet kitchen and spa-inspired baths feature custom tile, premium fixtures, and handcrafted cabinetry. Distinctive elements-including structural steel accents and custom metal railings-add a refined architectural edge.The exterior features cedar and stucco siding (2018), new concrete driveway, and new roof (2020). Enjoy Colorado living from the covered post-and-beam front porch or relax in the private backyard oasis with cedar pergola, stone patio, hot tub, and fully hardscaped grounds featuring sandstone and Pennsylvania bluestone, complete with mature landscaping and automated irrigation.Two versatile outbuildings add significant value: a 220 sq ft heated garage/workshop with 220V power, and a 120 sq ft craftsman-built shed with power-ideal for office, studio, or gear storage.Proven 7-year Airbnb history generated $80K in 2025 (144 days, $555 avg/night), offering strong income potential. Included stamped plans for a pop-top addition provide a rare opportunity to nearly double the square footage. plans are a ($20K value). A truly distinctive property offering lifestyle, craftsmanship, income potential, and Flatiron views in one of SOBO's most desirable neighborhoods.
Unit Size
1,330 Ft²
Days on Market
-
Land Size
0.17 acres
Price per sqft
$752
Property Type
House
Property Taxes
$376
HOA Dues
-
Year Built
1955

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Last updated: 4 months ago (IRES MLS #IRE1057269)

Price History

Date / Event Date Event Price
Jun 8, 2026 Sold
Sold
May 2, 2026 In contract -
In contract
Apr 23, 2026 Listed $1,000,000
Listed
Jul 22, 2013 Sold
Sold
Jun 6, 2007 Sold
Sold

Property Highlights

Garage
Air Conditioning

Building Info

Overview

    General

  • Year Built: 1955
  • Effective Year Built: 1960
  • Building Count: 1
  • Total Rooms: 5
  • Bedroom Count: 3
  • Bathroom Count: 1
  • Full Bathrooms: 1
  • Partial Bathrooms: 1
  • Building Condition: 6
  • Building Quality: 10
  • Construction Type: 6
  • Building Style: 11
  • Exterior Walls Type: 16
  • Interior Walls Type: 3
  • Roof Shape Type: 0
  • Roof Cover Type: 15
  • Floor Count: 100
  • Living Units: 1
  • Floor Cover: 0
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 7
  • Garage Square Area: 234
  • Parking Space Count: 1
  • Patio Type: 20
  • Porch Type: 8
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 7,411
  • Total Building Area: 1,272
  • Gross Building Area: 1,272
  • Building Area: 1,272
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 4
  • Heated Square Feet: 1,272
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: HIGHLAND PARK 1 - BO
  • Land Acres: 0000000170
  • Standard Land Use Code: 1001
  • County Land Use Code: 1112
  • Legal Description 1: LOT 29 BLK 10 HIGHLAND PARK 1

Neighborhood

  • School District Name: Boulder Valley School District RE-2
  • Census Tract: 012507

Geography

  • Assessors Map Reference: B18-K
  • Account Number: R0004049
  • Parcel: R0004049
  • Block: 10
  • Lot: 29
  • Meridian: SEC 05 TWN 1S RNG 70
  • Municipality: BOULDER
  • Latitude: 39.9958
  • Longitude: -105.256

    Address

  • Full Address: 285 31st St
  • Address - House Number: 285
  • Address - Street Name: 31st
  • Address - Suffix Type: St
  • State: CO
  • City Name: Boulder
  • Carrier Code: C001
  • 4-Digit Zip Code: 3403
  • Zip Code: 80305

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $392,342
  • Tax Rate Code Area: 00-010

    Appraisal Valuation

  • Standard Deviation: 0.1621
  • Valuation Date: Jul 05, 2023
  • Confidence Score: 79
  • Final Value: 813,230
  • High Value: 945,128
  • Low Value: 681,332

    Market Valuation

  • Market Total Value: $812,900
  • Market Land Value: $514,900
  • Market Improvement Value: $298,000

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $54,993
  • Assessed Land Value: $34,833
  • Assessed Improvements Value: $20,160

    Sales

  • Current Sale Contract Date: Jul 19, 2013
  • Current Sale Recording Date: Jul 22, 2013
  • Current Sale Price:
  • Current Sale Document Type: 71
  • Current Sale Input Document Number: 3329077
  • Previous Sale Recording Date: Jun 06, 2007
  • Previous Sale Contract Date: Jun 01, 2007
  • Previous Sale Amount: $312,500
  • Previous Sale Document Type: 71
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About South Boulder


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Frequently Asked Questions

When was property at 285 31st Street built and last sold?
The property at 285 31st Street was built in 1955 and last sold on Jul 19, 2013 for $365,000.
How much is this home worth?
The estimated value of the home located at 285 31st Street is $999,337.
What are some comparable homes to 285 31st Street?
There are currently no comparable homes to 285 31st Street.