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Multi-Family Dwellings (Generic, Any Combination)Residential
$552,703$698 / 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
Last sold for $150,000 on Aug 10, 2015

6440 OLD REDWOOD HWY

SANTA ROSA, CA 95403
2
Beds
1
Baths
792 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.
0.53 ac
Lot SizeThe size of the land the home sits on, from county records.
1948
Year BuiltThe year the home was originally built, according to county records.
1
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.

Valuation

$553K
$505K low$600K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Aug 10, 2015
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$552,703
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$442,162

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,490 (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.$514,946 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$213,081
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$301,865
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$504,850

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.25
39
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
60
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.8 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.Multi-Family Dwellings (Generic, Any Combination)
CountySONOMA
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.1973
Lot (acres)The size of the land the home sits on, from county records.0.53
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(10)

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

Foreclosure Filings(2)

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

E
Mattie Washburn Elementary School
Elementary · Grades KG–2 · 0.4 mi
H
Windsor High SchoolA-
High · Grades 9–12 · 1.7 mi
M
Windsor Middle SchoolB-
Middle · Grades 6–8 · 1.8 mi

District: Windsor Unified 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

6440 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.

  • Worth less than 85% of homes in Sonoma County
  • Among the highest price per square foot in Santa Rosa 95403
  • Smaller than 98% of homes in Santa Rosa 95403
  • Has a bigger lot than 87% of homes in Santa Rosa 95403
  • Among the oldest homes in Santa Rosa 95403

What homes are worth in Santa Rosa 95403

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

This home
$303K$1.9M

This home is worth more than 17% of homes in Santa Rosa 95403.

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.

Estimated value$552,703
CheaperTypical $709,611Pricier

Pricier than 17% of homes nearby

Price per ft²$698
CheaperTypical $439Pricier

Pricier than almost all homes nearby

Living area792 ft²
SmallerTypical 1,636 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.53 ac
SmallerTypical 0.15 acBigger

Bigger than 87% of homes nearby

Year built1948
OlderTypical 1989Newer

Older than almost all homes nearby

How 6440 Old Redwood Hwy ranks against every home in each area.
MeasureThis homeSanta Rosa 95403Sonoma County
Estimated valuepricier than$552,70317% of homes15% of homes
Price per ft²pricier than$698almost all homes86% of homes
Living areabigger than792 ft²2% of homes4% of homes
Lot sizebigger than0.53 ac87% of homes78% of homes
Year builtnewer than1948almost no homes13% of homes

About 6440 Old Redwood Hwy

How much is 6440 Old Redwood Hwy, Santa Rosa, CA worth?

The TopHap Estimate for 6440 Old Redwood Hwy, Santa Rosa, CA is $552,703 as of Jul 14, 2026. The likely range is $505,449 to $599,957. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6440 Old Redwood Hwy, Santa Rosa, CA last sell?

6440 Old Redwood Hwy, Santa Rosa, CA last sold on Aug 10, 2015 for $150,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 6440 Old Redwood Hwy, Santa Rosa, CA?

6440 Old Redwood Hwy, Santa Rosa, CA has 2 bedrooms, 1 bathrooms, 792 square feet of living space and a 0.53-acre lot.

When was 6440 Old Redwood Hwy, Santa Rosa, CA built?

6440 Old Redwood Hwy, Santa Rosa, CA was built in 1948, making it 78 years old. The building has 1 story.

What schools serve 6440 Old Redwood Hwy, Santa Rosa, CA?

6440 Old Redwood Hwy, Santa Rosa, CA is assigned to Mattie Washburn Elementary School (elementary); Windsor High School (high), rated A-; Windsor Middle School (middle), rated B-. All sit in Windsor Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6440 Old Redwood Hwy, Santa Rosa, CA compare to other homes in Santa Rosa 95403?

Among the 12,533 homes in Santa Rosa 95403, it is worth more than 17% of them ($552,703 against a typical $709,611), its price per square foot is higher than almost all of them ($698 against a typical $439), it is bigger than 2% of them (792 ft² against a typical 1,636 ft²), its lot is bigger than 87% of them (0.53 ac against a typical 0.15 ac) and it is newer than almost none of them (1948 against a typical 1989). Measured against all of Sonoma County, it is worth more than 15% 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 6440 Old Redwood Hwy, Santa Rosa, CA?

The 2025 property tax bill for 6440 Old Redwood Hwy, Santa Rosa, CA was $6,490. The county assessed it at $514,946.

Closest homes

More homes in Santa Rosa 95403

Assigned schools

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