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Single Family ResidenceResidential
$845,495$590 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

307 SPINNAKER CLOSE

SEA RANCH, CA
3
Beds
3
Baths
1,432 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$845K
$773K low$918K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,080 (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.$338,621 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$87,845
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$250,776
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$331,982

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.21
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
75
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
30
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySONOMA
Lot (acres)The size of the land the home sits on, from county records.0.41
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(1)

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
Horicon Elementary SchoolD+
Elementary · Grades KG–8 · 3.7 mi
H
Point Arena High SchoolD+
High · Grades 9–12 · 21.7 mi

District: Point Arena Joint Union High School District

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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

307 Spinnaker Close 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.

  • Costs more per square foot than 74% of homes in Sonoma County
  • Has a bigger lot than 75% of homes in Sonoma County

How it measures up in Sonoma County

The dot is this home. The mark in the middle is the typical home in Sonoma County.

Estimated value$845,495
CheaperTypical $765,194Pricier

Pricier than 61% of homes nearby

Price per ft²$590
CheaperTypical $486Pricier

Pricier than 74% of homes nearby

Living area1,432 ft²
SmallerTypical 1,566 ft²Bigger

Bigger than 41% of homes nearby

Lot size0.41 ac
SmallerTypical 0.16 acBigger

Bigger than 75% of homes nearby

Year built1979
OlderTypical 1978Newer

Newer than 53% of homes nearby

How 307 Spinnaker Close ranks against every home in each area.
MeasureThis homeSonoma County
Estimated valuepricier than$845,49561% of homes
Price per ft²pricier than$59074% of homes
Living areabigger than1,432 ft²41% of homes
Lot sizebigger than0.41 ac75% of homes
Year builtnewer than197953% of homes

About 307 Spinnaker Close

How much is 307 Spinnaker Close, Sea Ranch, CA worth?

The TopHap Estimate for 307 Spinnaker Close, Sea Ranch, CA is $845,495 as of Jul 14, 2026. The likely range is $772,666 to $918,324. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 307 Spinnaker Close, Sea Ranch, CA last sell?

307 Spinnaker Close, Sea Ranch, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 307 Spinnaker Close, Sea Ranch, CA?

307 Spinnaker Close, Sea Ranch, CA has 3 bedrooms, 3 bathrooms, 1,432 square feet of living space and a 0.41-acre lot.

When was 307 Spinnaker Close, Sea Ranch, CA built?

307 Spinnaker Close, Sea Ranch, CA was built in 1979, making it 47 years old. The building has 2 stories.

What schools serve 307 Spinnaker Close, Sea Ranch, CA?

307 Spinnaker Close, Sea Ranch, CA is assigned to Horicon Elementary School (elementary), rated D+; Point Arena High School (high), rated D+. All sit in Point Arena Joint Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 307 Spinnaker Close, Sea Ranch, CA compare to other homes in Sonoma County?

Among the 155,357 homes in Sonoma County, it is worth more than 61% of them ($845,495 against a typical $765,194), its price per square foot is higher than 74% of them ($590 against a typical $486), it is bigger than 41% of them (1,432 ft² against a typical 1,566 ft²), its lot is bigger than 75% of them (0.41 ac against a typical 0.16 ac) and it is newer than 53% of them (1979 against a typical 1978). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 307 Spinnaker Close, Sea Ranch, CA?

The 2025 property tax bill for 307 Spinnaker Close, Sea Ranch, CA was $4,080. The county assessed it at $338,621.

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