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21 Marion Ave, Mill Valley, CA 94941

  • $2,338,000

    Last sold date unavailable

  • 5

    bed

  • —

    bath

  • 2,842

    Sqft ($1,118/Sqft)

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About 21 Marion Ave

Property type House
Neighborhood
Year built 1960
HOA fee $0/month
Lot size 4,183 Sqft
Movoto estimate
Property description
This 5-bedroom single-family home is located at 21 Marion Ave, Mill Valley, CA, 94941, in the Cascade Canyon neighborhood in Marin County and was built in 1960. This home offers 2,842 square feet of living space on a 4,183 sq ft lot. The estimated market value is $2,338,000, approximately $823 per square foot.
$2.33M
Range: $1.37M-$3.29M
Last 30 days 
  • Year Property taxes Tax assessment
  • 2024
    $17,126 +1.5%
    $1,221,818 +4.04%
  • 2023
    $16,874 +2.2%
    $1,174,381
  • 2022
    $16,503 +1.4%
    $1,174,381 +4.04%
  • 2021
    $16,282 -0.9%
    $1,128,788
  • 2020
    $16,431 +5.7%
    $1,128,788 +1.04%
  • 2019
    $15,542 +4.7%
    $1,117,221 +2.0%
  • 2018
    $14,845 +2.6%
    $1,095,318 +2.0%
  • 2017
    $14,464 +4.9%
    $1,073,845 +2.0%
  • 2016
    $13,795 -3.5%
    $1,052,794
  • 2015
    $14,294
    —
  • 21 Marion Ave
    $3.17M
  • Cascade Canyon
    $2.24M +15% y/y
  • 94941
    $1.75M -20% y/y
  • Mill Valley
    $1.75M -20% y/y
No chart available
Statistics calculated by Movoto
Est. value Bed/bath Sqft mi
25 Marion Ave, Mill Valley, CA 94941 $2,087,000 3/1 1,998 0.03
16 Marion Ave, Mill Valley, CA 94941 $2,503,000 4/2 3,166 0.03
21 Monte Vista Ave, Mill Valley, CA 94941 $2,321,000 2/3 3,101 0.04
6 Marion Ave, Mill Valley, CA 94941 $2,308,000 2/2 2,142 0.04
38 Renz Rd, Mill Valley, CA 94941 $1,844,000 3/— 1,520 0.04
34 Renz Rd, Mill Valley, CA 94941 $3,168,000 4/3 2,881 0.05
56 Monte Vista Ave, Mill Valley, CA 94941 $2,063,000 3/2 1,992 0.05
115 Marion Ave, Mill Valley, CA 94941 $2,728,000 3/— 3,060 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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9/10
Tamalpais High School
public Grades 9-12
Tamalpais Union High School District
Source: GreatSchools.org © 2026. All rights reserved.

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