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4220 Grinnell Ave, Boulder, CO 80305

$1,248,000

Last sold date unavailable

  • 3

    bed

  • 1

    bath

  • 1,274

    Sqft ($671/Sqft)

House not for sale
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About 4220 Grinnell Ave

Property type House
Neighborhood
Year built 1966
HOA fee $0/month
Lot size 7,275 Sqft
Movoto estimate
Rental estimate
Property description
This 3-bedroom, 1-bathroom single-family home is located at 4220 Grinnell Ave, Boulder, CO, 80305 in Boulder County and was built in 1966. This home offers 1,274 square feet of living space on a 7,275 sq ft lot. The estimated market value is $1,248,000, approximately $980 per square foot.
$1.24M
Range: $960K-$1.53M
Last 30 days 
Rental est.: $4,125/month
Gross rent multiplier: 17.3
  • Year Property taxes Tax assessment
  • 2025
    $6,137 +1.5%
    $70,613 -6.47%
  • 2024
    $6,046 +1.8%
    $75,496 +21.29%
  • 2023
    $5,941 +15.7%
    $62,244 -2.8%
  • 2022
    $5,135 +4.9%
    $64,036 +20.62%
  • 2021
    $4,896 +22.4%
    $53,089
  • 2020
    $3,999 +1.6%
    $53,089
  • 2019
    $3,938 +4.1%
    $53,089 +4.49%
  • 2018
    $3,781 +23.6%
    $50,810 -9.55%
  • 2016
    $3,059 +5.6%
    $56,174
  • 2015
    $2,896
    —
  • 4220 Grinnell Ave
    $855K
  • South Boulder
    $1.14M
  • 80305
    $800K -33% y/y
  • Boulder
    $1M -33% y/y
No chart available
Statistics calculated by Movoto
Est. value Bed/bath Sqft mi
4230 Grinnell Ave, Boulder, CO 80305 $1,222,000 3/1 1,148 0.01
1250 Gillaspie Dr, Boulder, CO 80305 $1,217,000 5/1 1,288 0.01
4240 Grinnell Ave, Boulder, CO 80305 $1,425,000 4/1 1,360 0.02
4250 Grinnell Ave, Boulder, CO 80305 $1,521,000 3/3 1,504 0.04
1255 Gillaspie Dr, Boulder, CO 80305 $1,411,000 4/3 1,826 0.04
1285 Gillaspie Dr, Boulder, CO 80305 $1,307,000 5/1 1,605 0.05
1245 Gillaspie Dr, Boulder, CO 80305 $1,387,000 5/1 2,106 0.05
4260 Grinnell Ave, Boulder, CO 80305 $1,345,000 3/1 1,679 0.05

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
Mesa Elementary School
public Grades K-5
Boulder Valley Re 2 School District
10/10
Bear Creek Elementary School
public Grades K-5
Boulder Valley Re 2 School District
10/10
Fairview High School
public Grades 9-12
Boulder Valley Re 2 School District
Source: GreatSchools.org © 2026. All rights reserved.

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