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Residential > House
Sold
02/17/1999
Sold Price
$435,000$183/ft²

9 Castle Rock Dr
Mill Valley, CA 94941

  • 4
    Beds
  • 3
    Baths
  • 2,382
    ft²
    Living Area
  • 8,520
    ft²
    Lot Size
  • -
    Pool
  • -
    Car
  • 1961
    Year Built
  • -
    DOM
  • 3
    Permits
9 Castle Rock Dr, Mill Valley, CA 94941 is a 4 bed, 3 bath, 2,382 ft² house built in 1961 on a 0.196 acre lot with 3 construction permits. This house is currently off market, and it was last sold in 1999 for $435,000. The latest TopHap estimate of the house's value is $998,700.

    Property Valuations

    Latest estimates for 9 Castle Rock Dr based on TopHap automated valuation model (AVM).

    • TopHap Estimate

      $998,700

      $419/ft²

      +$564K above Sold Price

      Updated 3 months ago

      • 9 Castle Rock Dr is valued at $998,700 by TopHap AVM 3 months ago.

    • Last Sold Price

      $435,000

      $183/ft²

      26 years ago

      • 9 Castle Rock Dr was last sold in 1999 for $435,000.

    Permits

    9 Castle Rock Dr has 3 permit records.

    Permit History
    3
    Permits

    Current Ownership

    Information about the current owner(s).

    • Taxes Billed

      Taxes billed in 2025$13,358.40
      From latest Total Assessed Value1.69%
      Total Assessed Value$792,708
      =
      Land
      Assessed Value      $272,641
      +
      Additions
      Assessed Value      $520,067

      • In 2025, taxes billed for 9 Castle Rock Dr were $13,358.4, which is 1.69% from latest Total Assessed Value of $792,708.

    Property History

    9 Castle Rock Dr has undefined property events records (listings, deeds, permits, tax, foreclosure, loan).

    Property Events

    Environment

    Environmental factors around 9 Castle Rock Dr

    • Hazard Risks

      Earthquake
      439
      Nat'l Avg
      100
      Particulates
      100
      Air Pollution
      84
      Ozone
      81
      Carb Mono
      80
      Lead
      40
      Hail
      0
      Hurricane
      0
      Tornado
      0
      Weather
      0
      Wind
      0

      • 7 hazards (Carbon Monoxide, Earthquake Risk, Air Pollution Index, Ozone Index, Lead Index, Particulate Matter, National Average) are above the national average around 9 Castle Rock Dr.

      Walkability Index

      7 /20

      Car Dependent

      Most Walkable

      20-18

      Very Walkable

      17-15

      Somewhat Walkable

      14-10

      Car Dependent

      9-0

      9 Castle Rock Dr has a walkability score of 7 out of 20, which means that it is in a car dependent area.

      Noise Level

      41 dB

      Similar to Quiet Suburban Residential

      Quiet Suburban Residential 0-49

      Suburban Residential 50-54

      Urban Residential 55-59

      Noisy Urban Residential 60-64

      Very Noisy Urban Residential 65+

      Noise at 9 Castle Rock Dr is around 41dBs, which is comparable to a Quiet Suburban Residential area.

      Temperature

      Seasonal temperature sampled over multiple years

      Winter
      Average

      49 °F

      Low

      43°F

      High

      56°F

      Summer
      Average

      63 °F

      Low

      53°F

      High

      74°F

      In the winter at 9 Castle Rock Dr, temperatures range from 42.58°F to 56.32°F with an average of 49.45°F. In the summer, the temperature ranges from 52.58°F to 73.54°F with and average of 63.06°F.

    School Information

    Public/private schools serving 9 Castle Rock Dr

      Public Schools

      Edna Maguire Elementary School
      Grades: KG-5
      1.87  mi
      B
      Strawberry Point Elementary School
      Grades: KG-5
      2.91  mi
      A
      Tamalpais Valley Elementary School
      Grades: KG-5
      2.52  mi
      A
      Park Elementary School
      Grades: KG-5
      1.11  mi
      A
      Old Mill Elementary School
      Grades: KG-5
      0.38  mi
      A-
      Mill Valley Middle School
      Grades: 6-8
      1.60  mi
      A
      Tamalpais High School
      Grades: 9-12
      1.70  mi
      A
      * The school rating is based entirely on the test score performance of each school. It is based on a scale of A-F, A being best.

      Nearby public schools serving 9 Castle Rock Dr have ratings undefined, undefined, undefined, undefined, undefined, undefined, and undefined.

    Neighborhood

    This property is located in Muir Woods Park, Mill Valley, CA 94941.

      Crime Index for 94941

      91

      Below national average
      91

      The crime index in 94941 is 91, which is 0.9 times lower than national average.

    • Seasonal Housing units 94941

      16%

      of housing is for seasonal rent.

      Daytime Population for 94941

      +11%

      of people during work hours.

    Market Trends

    Historical market data near 9 Castle Rock Dr over selected time period.

    Nearby Properties on Castle Rock Dr

    USACAMarin CountyMill ValleyCastle Rock-Dr