Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,431,003$773 / 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 81How 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 $500,000 on Jan 17, 1997

312 CONSTELLATION CLOSE

SEA RANCH, CA
2
Beds
2
Baths
1,852 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.
1.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.4M
$1.2M low$1.7M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$500,000 · Jan 17, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,030 (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.$1,094,175 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$687,008
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$407,167
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,072,722

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.35
77
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
71
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.60 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
CoolingThe type of cooling or air conditioning in the home.None
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Horicon Elementary SchoolC-
Elementary · Grades KG–8 · 3.6 mi
H
Point Arena High SchoolD+
High · Grades 9–12 · 21.3 mi

District: Point Arena Joint Union High School District

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

312 Constellation 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.

  • Worth more than 90% of homes in Sonoma County
  • Costs more per square foot than 91% of homes in Sonoma County
  • Bigger than 66% of homes in Sonoma County
  • Has a bigger lot than 86% of homes in Sonoma County
  • Newer than 74% 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$1,431,003
CheaperTypical $768,636Pricier

Pricier than 90% of homes nearby

Price per ft²$773
CheaperTypical $485Pricier

Pricier than 91% of homes nearby

Living area1,852 ft²
SmallerTypical 1,562 ft²Bigger

Bigger than 66% of homes nearby

Lot size1.18 ac
SmallerTypical 0.16 acBigger

Bigger than 86% of homes nearby

Year built1990
OlderTypical 1978Newer

Newer than 74% of homes nearby

How 312 Constellation Close ranks against every home in each area.
MeasureThis homeSonoma County
Estimated valuepricier than$1,431,00390% of homes
Price per ft²pricier than$77391% of homes
Living areabigger than1,852 ft²66% of homes
Lot sizebigger than1.18 ac86% of homes
Year builtnewer than199074% of homes

About 312 Constellation Close

How much is 312 Constellation Close, Sea Ranch, CA worth?

The TopHap Estimate for 312 Constellation Close, Sea Ranch, CA is $1,431,003 as of Oct 21, 2026. The likely range is $1,159,456 to $1,702,550. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 312 Constellation Close, Sea Ranch, CA last sell?

312 Constellation Close, Sea Ranch, CA last sold on Jan 17, 1997 for $500,000, according to the county's recorded deed.

How big is 312 Constellation Close, Sea Ranch, CA?

312 Constellation Close, Sea Ranch, CA has 2 bedrooms, 2 bathrooms and 1,852 square feet of living space.

When was 312 Constellation Close, Sea Ranch, CA built?

312 Constellation Close, Sea Ranch, CA was built in 1990, making it 36 years old. The building has 2 stories.

What schools serve 312 Constellation Close, Sea Ranch, CA?

312 Constellation Close, Sea Ranch, CA is assigned to Horicon Elementary School (elementary), rated C-; 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 312 Constellation Close, Sea Ranch, CA compare to other homes in Sonoma County?

Among the 155,515 homes in Sonoma County, it is worth more than 90% of them ($1,431,003 against a typical $768,636), its price per square foot is higher than 91% of them ($773 against a typical $485), it is bigger than 66% of them (1,852 ft² against a typical 1,562 ft²), its lot is bigger than 86% of them (1.18 ac against a typical 0.16 ac) and it is newer than 74% of them (1990 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 312 Constellation Close, Sea Ranch, CA?

The 2025 property tax bill for 312 Constellation Close, Sea Ranch, CA was $12,030. The county assessed it at $1,094,175.

More homes on Constellation Close

Closest homes

Assigned schools

Explore the area

See this home in context

Open 312 Constellation Close 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