Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,273,823$648 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $957,000 on Jul 25, 2019

17 CASTLE ROCK AVE

WOODACRE, CA 94973
2
Beds
2.5
Baths
1,967 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.57 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.3M
$1.2M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$957,000 · Jul 25, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,493 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,067,533 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$725,075
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$342,458
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,046,603

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Contemporary
CountyMARIN
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1984
Lot (acres)The size of the land the home sits on, from county records.0.57
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 866 ft²Patio · 866 ft²

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Lagunitas Elementary SchoolA-
Elementary · Grades KG–8 · 2.2 mi
H
Archie Williams High SchoolA-
High · Grades 9–12 · 3.8 mi

District: Tamalpais Union High School District

Neighborhood · ZIP 94973These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.121
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.415

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.1,300
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.504 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$175,315
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$190,505
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

Owner Tools

Do you own this home?
Claim this home

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

17 Castle Rock Ave measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 71% of homes in Woodacre 94973
  • Costs less per square foot than 72% of homes in Woodacre 94973
  • Bigger than 72% of homes in Woodacre 94973
  • Has a bigger lot than 89% of homes in Marin County
  • Newer than 88% of homes in Woodacre 94973

What homes are worth in Woodacre 94973

Each bar is how many homes fall in that price range. The marker is this home.

This home
$469K$2.1M

This home is worth more than 71% of homes in Woodacre 94973.

How it measures up in Woodacre 94973

The dot is this home. The mark in the middle is the typical home in Woodacre 94973.

Estimated value$1,273,823
CheaperTypical $1,075,466Pricier

Pricier than 71% of homes nearby

Price per ft²$648
CheaperTypical $702Pricier

Pricier than 28% of homes nearby

Living area1,967 ft²
SmallerTypical 1,537 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.57 ac
SmallerTypical 0.31 acBigger

Bigger than 81% of homes nearby

Year built1974
OlderTypical 1953Newer

Newer than 88% of homes nearby

How 17 Castle Rock Ave ranks against every home in each area.
MeasureThis homeWoodacre 94973Marin County
Estimated valuepricier than$1,273,82371% of homes41% of homes
Price per ft²pricier than$64828% of homes31% of homes
Living areabigger than1,967 ft²72% of homes57% of homes
Lot sizebigger than0.57 ac81% of homes89% of homes
Year builtnewer than197488% of homes72% of homes

About 17 Castle Rock Ave

How much is 17 Castle Rock Ave, Woodacre, CA worth?

The TopHap Estimate for 17 Castle Rock Ave, Woodacre, CA is $1,273,823 as of Oct 21, 2026. The likely range is $1,180,999 to $1,366,647. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Castle Rock Ave, Woodacre, CA last sell?

17 Castle Rock Ave, Woodacre, CA last sold on Jul 25, 2019 for $957,000, according to the county's recorded deed.

How big is 17 Castle Rock Ave, Woodacre, CA?

17 Castle Rock Ave, Woodacre, CA has 2 bedrooms, 2.5 bathrooms, 1,967 square feet of living space and a 0.57-acre lot.

When was 17 Castle Rock Ave, Woodacre, CA built?

17 Castle Rock Ave, Woodacre, CA was built in 1974, making it 52 years old. It is a contemporary home.

What schools serve 17 Castle Rock Ave, Woodacre, CA?

17 Castle Rock Ave, Woodacre, CA is assigned to Lagunitas Elementary School (elementary), rated A-; Archie Williams High School (high), rated A-. All sit in Tamalpais Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17 Castle Rock Ave, Woodacre, CA compare to other homes in Woodacre 94973?

Among the 578 homes in Woodacre 94973, it is worth more than 71% of them ($1,273,823 against a typical $1,075,466), its price per square foot is higher than 28% of them ($648 against a typical $702), it is bigger than 72% of them (1,967 ft² against a typical 1,537 ft²), its lot is bigger than 81% of them (0.57 ac against a typical 0.31 ac) and it is newer than 88% of them (1974 against a typical 1953). Measured against all of Marin County, it is worth more than 41% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 17 Castle Rock Ave, Woodacre, CA?

The 2025 property tax bill for 17 Castle Rock Ave, Woodacre, CA was $13,493. The county assessed it at $1,067,533.

More homes on Castle Rock Ave

Closest homes

More homes in Woodacre 94973

Assigned schools

Explore the area

See this home in context

Open 17 Castle Rock Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map