Duplex (2 Units, Any Combination)Residential
645 CRESTMONT DR
SANTA ROSA, CA 95409
5
Beds
3.5
Baths
2,276 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
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.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,242 (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.$356,284 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$97,604
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$258,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$349,299
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.
80
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.
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.Duplex (2 Units, Any Combination)
CountySONOMA
Lot (acres)The size of the land the home sits on, from county records.0.27
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.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(2)
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.
HEM
Maria Carrillo High SchoolA-
High · Grades 9–12 · 0.4 mi
Sequoia Elementary SchoolA-
Elementary · Grades KG–6 · 0.5 mi
Spring Lake Middle SchoolA-
Middle · Grades 7–8 · 0.6 mi
District: Santa Rosa High School District
Neighborhood · ZIP 95409These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.459
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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.24,776
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.847 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$99,190
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,830
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%
Owner Tools
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How this home compares
645 Crestmont Dr 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.
- Bigger than 83% of homes in Sonoma County
- Has a bigger lot than 73% of homes in Santa Rosa 95409
How it measures up in Santa Rosa 95409
The dot is this home. The mark in the middle is the typical home in Santa Rosa 95409.
Living area2,276 ft²
SmallerTypical 1,671 ft²Bigger
Bigger than 81% of homes nearby
Lot size0.27 ac
SmallerTypical 0.18 acBigger
Bigger than 73% of homes nearby
Year built1977
OlderTypical 1976Newer
Newer than 56% of homes nearby
| Measure | This home | Santa Rosa 95409 | Sonoma County |
|---|---|---|---|
| Living areabigger than | 2,276 ft² | 81% of homes | 83% of homes |
| Lot sizebigger than | 0.27 ac | 73% of homes | 69% of homes |
| Year builtnewer than | 1977 | 56% of homes | 49% of homes |
About 645 Crestmont Dr
When did 645 Crestmont Dr, Santa Rosa, CA last sell?
645 Crestmont Dr, Santa Rosa, CA last sold on Jan 1, 1900, according to the county's recorded deed.
How big is 645 Crestmont Dr, Santa Rosa, CA?
645 Crestmont Dr, Santa Rosa, CA has 5 bedrooms, 3.5 bathrooms, 2,276 square feet of living space and a 0.27-acre lot.
When was 645 Crestmont Dr, Santa Rosa, CA built?
645 Crestmont Dr, Santa Rosa, CA was built in 1977, making it 49 years old. The building has 2 stories.
What schools serve 645 Crestmont Dr, Santa Rosa, CA?
645 Crestmont Dr, Santa Rosa, CA is assigned to Maria Carrillo High School (high), rated A-; Sequoia Elementary School (elementary), rated A-; Spring Lake Middle School (middle), rated A-. All sit in Santa Rosa High School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 645 Crestmont Dr, Santa Rosa, CA compare to other homes in Santa Rosa 95409?
Among the 10,250 homes in Santa Rosa 95409, it is bigger than 81% of them (2,276 ft² against a typical 1,671 ft²), its lot is bigger than 73% of them (0.27 ac against a typical 0.18 ac) and it is newer than 56% of them (1977 against a typical 1976). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 645 Crestmont Dr, Santa Rosa, CA?
The 2025 property tax bill for 645 Crestmont Dr, Santa Rosa, CA was $4,242. The county assessed it at $356,284.
More homes on Crestmont Dr
- 611 Crestmont Dr$947K5 bd · 2.5 ba · 2,512 ft² · Sold $935K · Dec 2022
- 607 Crestmont Dr$718K2 bd · 2 ba · 1,589 ft² · Sold $650K · Jul 2021
- 628 Crestmont Dr$885K3 bd · 2 ba · 1,685 ft² · Sold $703K · Oct 2020
- 627 Crestmont Dr$787K4 bd · 2 ba · 1,966 ft² · Sold $605K · Oct 2019
- 633 Crestmont Dr$665K2 bd · 2 ba · 1,485 ft² · Sold $625K · Jun 2019
- 616 Crestmont Dr$849K2 bd · 2 ba · 1,640 ft² · Sold $639K · Jun 2007
- 619 Crestmont Dr$823K3 bd · 2.5 ba · 1,849 ft² · Sold $615K · May 2007
- 612 Crestmont Dr$767K3 bd · 2 ba · 1,720 ft² · Sold $716K · Oct 2005
- 637 Crestmont Dr6 bd · 3 ba · 2,250 ft² · Sold $450K · Jul 2001
- 620 Crestmont Dr$927K5 bd · 3 ba · 2,862 ft² · Sold $376K · Feb 2000
- 632 Crestmont Dr$811K3 bd · 2.5 ba · 2,252 ft² · Sold $336K · Sep 1999
- 646 Crestmont Dr5 bd · 3.5 ba · 2,302 ft² · Sold $285K · Nov 1998
Closest homes
- 5224 Piedmont Dr$759K84 ft · 3 bd · 2 ba · 1,646 ft² · Sold $749K · Oct 2025
- 660 Rinaldo St105 ft · 5 bd · 4 ba · 2,253 ft² · Sold $670K · Mar 2017
- 664 Rinaldo St$732K154 ft · 3 bd · 2 ba · 1,380 ft² · Sold $610K · Dec 2015
- 5220 Piedmont Dr$658K151 ft · 4 bd · 2 ba · 1,470 ft² · Sold $511K · Jun 2016
- 5231 Piedmont Dr$721K166 ft · 3 bd · 2 ba · 1,490 ft² · Sold $600K · Oct 2021
- 5227 Piedmont Dr$808K149 ft · 3 bd · 3 ba · 2,222 ft² · Sold Jan 1900
- 646 Crestmont Dr165 ft · 5 bd · 3.5 ba · 2,302 ft² · Sold $285K · Nov 1998
- 656 Rinaldo St166 ft · 5 bd · 3.5 ba · 2,250 ft² · Sold Jan 1900
More homes in Santa Rosa 95409
- 6279 Melita Rd$1.3M3 bd · 2.5 ba · 3,029 ft² · Sold $1.2M · Oct 2026
- 4395 Highway 12$439K2 bd · 1.5 ba · 1,320 ft² · Sold $428K · Oct 2026
- 4707 Venti Ln$788K3 bd · 2 ba · 1,696 ft² · Sold $800K · Oct 2026
- 339 Twin Lakes Dr$366K2 bd · 2 ba · 1,172 ft² · Sold $512K · Oct 2026
- 423 Oak Point Pl$938K3 bd · 2.5 ba · 2,280 ft² · Sold $985K · Oct 2026
- 4615 Sullivan Way$1.4M4 bd · 2.5 ba · 2,520 ft² · Sold $1.4M · Oct 2026
- 360 Singing Brook Cir$849K2 bd · 2.5 ba · 2,188 ft² · Sold $753K · Oct 2026
- 6546 Meadowridge Dr$639K2 bd · 2 ba · 1,318 ft² · Sold $645K · Oct 2026
- 1820 Primavera Ct$416K3 bd · 1.5 ba · 1,220 ft² · Sold $400K · Oct 2026
- 2429 Woodstock Ct$723K4 bd · 2 ba · 1,897 ft² · Sold $718K · Oct 2026
- 527 Middle Rincon Rd$1.2M5 bd · 3 ba · 2,548 ft² · Sold $915K · Oct 2026
- 7536 Walnut Orch$1.3M2 bd · 2.5 ba · 2,430 ft² · Sold $1.2M · Oct 2026
Assigned schools
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