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Residential - Vacant LandResidential
Last sold for $545,000 on Aug 13, 2012

15403 MONTE ROSA AVE

UNINCORP COUNTY, CA
0
Baths
0.56 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$545,000 · Aug 13, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$92 (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.$3,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,000

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.41
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
82
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.197 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.Residential - Vacant Land
CountySONOMA
Lot (acres)The size of the land the home sits on, from county records.0.56
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
Guerneville Elementary (Charter)C-
Elementary · Grades KG–8 · 1.6 mi
H
Analy High SchoolA-
High · Grades 9–12 · 12.6 mi

District: Guerneville Elementary 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

15403 Monte Rosa Ave 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.

  • Has a bigger lot than 79% 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.

Lot size0.56 ac
SmallerTypical 0.17 acBigger

Bigger than 79% of homes nearby

How 15403 Monte Rosa Ave ranks against every home in each area.
MeasureThis homeSonoma County
Lot sizebigger than0.56 ac79% of homes

About 15403 Monte Rosa Ave

When did 15403 Monte Rosa Ave, Unincorp County, CA last sell?

15403 Monte Rosa Ave, Unincorp County, CA last sold on Aug 13, 2012 for $545,000, according to the county's recorded deed.

What schools serve 15403 Monte Rosa Ave, Unincorp County, CA?

15403 Monte Rosa Ave, Unincorp County, CA is assigned to Guerneville Elementary (Charter) (elementary), rated C-; Analy High School (high), rated A-. All sit in Guerneville Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

What are the property taxes on 15403 Monte Rosa Ave, Unincorp County, CA?

The 2025 property tax bill for 15403 Monte Rosa Ave, Unincorp County, CA was $92. The county assessed it at $3,000.

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Assigned schools

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