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Sold on 06/15/2021
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3909 Happy Valley Rd, Lafayette, CA 94549

$3,406,000

Last sold 06/15/2021 for $2.33M

  • 4

    bed

  • 3

    bath

  • 3,681

    Sqft ($634/Sqft)

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About 3909 Happy Valley Rd

Property type House
Neighborhood
Year built 1974
HOA fee $0/month
Lot size 0.55 Acre
Movoto estimate
Property description
This 4-bedroom, 3-bathroom single-family home is located at 3909 Happy Valley Rd, Lafayette, CA, 94549, in the Happy Valley neighborhood in Contra Costa County and was built in 1974. This home offers 3,681 square feet of living space on a 23,958 sq ft lot. The estimated market value is $3,406,000, approximately $925 per square foot.
$3.4M
Range: $2.41M-$4.39M
Last 30 days 
  • — Off Market
    —
  • Jun 2021
    Public Records
  • Jun 15, 2021 Sold
    $2,335,000 (+191.9%)
  • Jul 2001
    Public Records
  • Jul 31, 2001 Sold
    $800,000 (-4.8%)
  • Mar 1999
  • Mar 10, 1999 Sold
    $840,000 (-1.1%)
  • Oct 12, 1998 Listed
    $849,000
  • Jan 1999
  • Jan 10, 1999 Expired
    —
  • Oct 10, 1998 Listed
    $849,000
  • Year Property taxes Tax assessment
  • 2024
    $29,102 +1.7%
    $2,527,476 +4.04%
  • 2023
    $28,611 +1.5%
    $2,429,334
  • 2022
    $28,177 +171.7%
    $2,429,334 +194.53%
  • 2018
    $10,369 -24.3%
    $824,808 +2.0%
  • 2017
    $13,690 +37.0%
    $808,636 +2.0%
  • 2016
    $9,990 +2.8%
    $792,781
  • 2015
    $9,716
    —
  • 3909 Happy Valley Rd
    $2.33M
  • Happy Valley
    $3.99M -44% y/y
  • 94549
    $1.7M -12% y/y
  • Lafayette
    $1.7M -13% y/y
No chart available
Statistics calculated by Movoto
Est. value Bed/bath Sqft mi
3911 Happy Valley Rd, Lafayette, CA 94549 $7,260,000 7/6 5,075 0.03
3907 Happy Valley Rd, Lafayette, CA 94549 $4,346,000 3/3 2,330 0.04
3913 Happy Valley Rd, Lafayette, CA 94549 $4,660,000 5/4 5,820 0.04
3905 Happy Valley Rd, Lafayette, CA 94549 $5,111,000 6/5 4,578 0.05
3917 Happy Valley Rd, Lafayette, CA 94549 $3,281,000 4/3 3,530 0.06
1207 Camino Vallecito, Lafayette, CA 94549 $3,125,000 4/2 4,185 0.08
3919 Valley View Rd, Lafayette, CA 94549 $2,558,000 6/— 4,716 0.09
1199 Camino Vallecito, Lafayette, CA 94549 $3,404,000 4/3 3,836 0.09

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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10/10
Acalanes High School
public Grades 9-12
Acalanes Union High School District
Source: GreatSchools.org © 2026. All rights reserved.

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