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4230 Grinnell Ave, Boulder, CO 80305

$1,222,000

Last sold date unavailable

  • 3

    bed

  • 1

    bath

  • 1,148

    Sqft ($671/Sqft)

House not for sale
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About 4230 Grinnell Ave

Property type House
Neighborhood
Year built 1965
HOA fee $0/month
Lot size 7,187 Sqft
Movoto estimate
Rental estimate
Property description
This 3-bedroom, 1-bathroom single-family home is located at 4230 Grinnell Ave, Boulder, CO, 80305 in Boulder County and was built in 1965. This home offers 1,148 square feet of living space on a 7,187 sq ft lot. The estimated market value is $1,222,000, approximately $1,064 per square foot.
$1.22M
Range: $953K-$1.49M
Last 30 days 
Rental est.: $4,125/month
Gross rent multiplier: 15.6
  • Year Property taxes Tax assessment
  • 2025
    $6,722 +2.4%
    $70,501 -5.64%
  • 2024
    $6,567 +1.8%
    $74,718 +21.67%
  • 2023
    $6,453 +27.6%
    $61,411 -2.8%
  • 2022
    $5,057 +4.9%
    $63,178 +21.26%
  • 2021
    $4,823 +23.2%
    $52,103
  • 2020
    $3,913 +1.6%
    $52,103
  • 2019
    $3,853 +1.3%
    $52,103 +1.98%
  • 2018
    $3,805 +26.4%
    $51,091 -9.55%
  • 2016
    $3,010 +5.6%
    $56,484
  • 2015
    $2,850
    —
  • 4230 Grinnell Ave
    $770K
  • 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
4240 Grinnell Ave, Boulder, CO 80305 $1,425,000 4/1 1,360 0.01
4220 Grinnell Ave, Boulder, CO 80305 $1,248,000 3/1 1,274 0.01
1250 Gillaspie Dr, Boulder, CO 80305 $1,217,000 5/1 1,288 0.02
4250 Grinnell Ave, Boulder, CO 80305 $1,521,000 3/3 1,504 0.02
4260 Grinnell Ave, Boulder, CO 80305 $1,345,000 3/1 1,679 0.04
4235 Grinnell Ave, Boulder, CO 80305 $1,187,000 4/2 900 0.04
4270 Grinnell Ave, Boulder, CO 80305 $1,243,000 3/1 1,148 0.05
4265 Grinnell Ave, Boulder, CO 80305 $1,173,000 4/1 1,166 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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