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428 Arapahoe Ave #a, Boulder, CO 80302

$2,223,000

Last sold date unavailable

  • 1

    bed

  • 1

    bath

  • 500

    Sqft ($883/Sqft)

House not for sale
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About 428 Arapahoe Ave #a

Property type House
Neighborhood
Year built 1905
HOA fee $0/month
Lot size 7,405 Sqft
Movoto estimate
Rental estimate
Property description
This 1-bedroom, 1-bathroom single-family home is located at 428 Arapahoe Ave #a, Boulder, CO, 80302, in the Flatirons neighborhood in Boulder County and was built in 1905. This home offers 500 square feet of living space on a 7,405 sq ft lot. The estimated market value is $2,223,000, approximately $4,446 per square foot.
$2.22M
Range: $1.48M-$2.95M
Last 30 days 
Rental est.: $1,513/month
Gross rent multiplier: 24.3
  • Year Property taxes Tax assessment
  • 2024
    $9,336 +18.2%
    $106,229 +11.62%
  • 2023
    $7,900 +8.0%
    $95,167 +20.82%
  • 2022
    $7,314 +4.9%
    $78,765 +4.01%
  • 2021
    $6,975 +5.8%
    $75,726
  • 2020
    $6,592 +1.6%
    $75,726
  • 2019
    $6,491 +7.1%
    $75,726 +8.32%
  • 2018
    $6,061 +16.1%
    $69,912 -9.55%
  • 2016
    $5,220 +5.6%
    $77,291
  • 2015
    $4,943
    —
  • 428 Arapahoe Ave #a
    $441K
  • Flatirons
    $2.02M -55% y/y
  • 80302
    $1.42M -2% y/y
  • Boulder
    $999K -29% y/y
No chart available
Statistics calculated by Movoto
Est. value Bed/bath Sqft mi
432 Arapahoe Ave, Boulder, CO 80302 $1,414,000 2/1 913 0.01
440 Arapahoe Ave, Boulder, CO 80302 $2,449,000 4/2 1,916 0.02
416 Arapahoe Ave, Boulder, CO 80302 $2,281,000 2/1 2,482 0.02
1640 4th St, Boulder, CO 80302 $3,572,000 3/1 3,460 0.03
425 Arapahoe Ave, Boulder, CO 80302 $2,008,000 4/1 1,716 0.04
460 Arapahoe Ave, Boulder, CO 80302 $1,806,000 3/1 1,113 0.04
1632 4th St, Boulder, CO 80302 $1,408,000 3/1 1,782 0.04
435 Arapahoe Ave, Boulder, CO 80302 $2,989,000 3/2 3,351 0.04

Estimated values are based on public record data and automated valuation models. Values are not guaranteed and may not reflect current market conditions.

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8/10
Boulder High School
public Grades 9-12
Boulder Valley Re 2 School District
Source: GreatSchools.org © 2026. All rights reserved.

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