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Apartments (Generic)Residential
Last sold for $17,000,000 on Nov 4, 2025

5209 OLD REDWOOD HWY

SANTA ROSA, CA 95403
5
Beds
4
Baths
9,860 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.
6.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
24
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$17,000,000 · Nov 4, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$214,011 (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.$9,658,116 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,209,732
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$6,448,384
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$9,376,672

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.38
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
66
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
27
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.148 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Apartments (Generic)
CountySONOMA
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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
Mark West Elementary SchoolC+
Elementary · Grades KG–6 · 0.4 mi
H
Piner High SchoolC
High · Grades 9–12 · 3.2 mi
M
Hilliard Comstock Middle SchoolF
Middle · Grades 7–8 · 3.6 mi

District: Santa Rosa High School District

Neighborhood · ZIP 95403These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.511

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.43,826
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,997 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$96,508
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$119,029
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

5209 Old Redwood Hwy 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.

  • Among the largest homes in Larkfield-Wikiup
  • Has a bigger lot than 96% of homes in Sonoma County
  • Newer than 67% of homes in Sonoma County

How it measures up in Santa Rosa 95403

The dot is this home. The mark in the middle is the typical home in Santa Rosa 95403.

Living area9,860 ft²
SmallerTypical 1,633 ft²Bigger

Bigger than almost all homes nearby

Lot size6.51 ac
SmallerTypical 0.15 acBigger

Bigger than 94% of homes nearby

Year built1987
OlderTypical 1990Newer

Newer than 44% of homes nearby

How 5209 Old Redwood Hwy ranks against every home in each area.
MeasureThis homeLarkfield-WikiupSanta Rosa 95403Sonoma County
Living areabigger than9,860 ft²almost all homesalmost all homesalmost all homes
Lot sizebigger than6.51 ac90% of homes94% of homes96% of homes
Year builtnewer than198754% of homes44% of homes67% of homes

About 5209 Old Redwood Hwy

When did 5209 Old Redwood Hwy, Santa Rosa, CA last sell?

5209 Old Redwood Hwy, Santa Rosa, CA last sold on Nov 4, 2025 for $17,000,000, according to the county's recorded deed.

How big is 5209 Old Redwood Hwy, Santa Rosa, CA?

5209 Old Redwood Hwy, Santa Rosa, CA has 5 bedrooms, 4 bathrooms and 9,860 square feet of living space.

When was 5209 Old Redwood Hwy, Santa Rosa, CA built?

5209 Old Redwood Hwy, Santa Rosa, CA was built in 1987, making it 39 years old. The building has 2 stories.

What schools serve 5209 Old Redwood Hwy, Santa Rosa, CA?

5209 Old Redwood Hwy, Santa Rosa, CA is assigned to Mark West Elementary School (elementary), rated C+; Piner High School (high), rated C; Hilliard Comstock Middle School (middle), rated F. All sit in Santa Rosa High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 5209 Old Redwood Hwy, Santa Rosa, CA compare to other homes in Santa Rosa 95403?

Among the 12,653 homes in Santa Rosa 95403, it is bigger than almost all of them (9,860 ft² against a typical 1,633 ft²), its lot is bigger than 94% of them (6.51 ac against a typical 0.15 ac) and it is newer than 44% of them (1987 against a typical 1990). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 5209 Old Redwood Hwy, Santa Rosa, CA?

The 2025 property tax bill for 5209 Old Redwood Hwy, Santa Rosa, CA was $214,011. The county assessed it at $9,658,116.

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