Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$384,034$222 / 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 95How 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 $1,500,000 on May 4, 2023

9401 MENDENHALL AVE

UPPER LAKE, CA 95485
2
Beds
1
Baths
1,729 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.
0.81 ac
Lot SizeThe size of the land the home sits on, from county records.
1962
Year BuiltThe year the home was originally built, according to county records.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$384K
$364K low$404K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,500,000 · May 4, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,914 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$341,707 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$23,345
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$318,362
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$335,008

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.56
59
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
72
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
44
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
67
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
40
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.50 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.0.2 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.Single Family Residence
CountyLAKE
Lot (acres)The size of the land the home sits on, from county records.0.81
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
HeatingThe type of heating system in the home.Floor/Wall Furnace
CoolingThe type of cooling or air conditioning in the home.Wall Unit
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Upper Lake Elementary SchoolD
Elementary · Grades KG–5 · 0.5 mi
H
Upper Lake High SchoolD+
High · Grades 9–12 · 0.6 mi
M
Upper Lake Middle SchoolD-
Middle · Grades 6–8 · 0.6 mi

District: Upper Lake Union School District

Neighborhood · ZIP 95485These 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.161
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.321

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.9%
PopulationHow many people live in this area.1,713
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,920
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$79,658
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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

9401 Mendenhall 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.

  • Worth more than 73% of homes in Lake County
  • Costs less per square foot than 68% of homes in Upper Lake 95485
  • Bigger than 76% of homes in Upper Lake 95485
  • Has a bigger lot than 77% of homes in Lake County
  • Older than 73% of homes in Lake County

What homes are worth in Upper Lake 95485

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

This home
$151K$699K

This home is worth more than 70% of homes in Upper Lake 95485.

How it measures up in Upper Lake 95485

The dot is this home. The mark in the middle is the typical home in Upper Lake 95485.

Estimated value$384,034
CheaperTypical $309,974Pricier

Pricier than 70% of homes nearby

Price per ft²$222
CheaperTypical $245Pricier

Pricier than 32% of homes nearby

Living area1,729 ft²
SmallerTypical 1,248 ft²Bigger

Bigger than 76% of homes nearby

Lot size0.81 ac
SmallerTypical 1.28 acBigger

Bigger than 45% of homes nearby

Year built1962
OlderTypical 1965Newer

Newer than 48% of homes nearby

How 9401 Mendenhall Ave ranks against every home in each area.
MeasureThis homeUpper Lake 95485Lake County
Estimated valuepricier than$384,03470% of homes73% of homes
Price per ft²pricier than$22232% of homes53% of homes
Living areabigger than1,729 ft²76% of homes72% of homes
Lot sizebigger than0.81 ac45% of homes77% of homes
Year builtnewer than196248% of homes27% of homes

About 9401 Mendenhall Ave

How much is 9401 Mendenhall Ave, Upper Lake, CA worth?

The TopHap Estimate for 9401 Mendenhall Ave, Upper Lake, CA is $384,034 as of Oct 21, 2026. The likely range is $363,709 to $404,359. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9401 Mendenhall Ave, Upper Lake, CA last sell?

9401 Mendenhall Ave, Upper Lake, CA last sold on May 4, 2023 for $1,500,000, according to the county's recorded deed.

How big is 9401 Mendenhall Ave, Upper Lake, CA?

9401 Mendenhall Ave, Upper Lake, CA has 2 bedrooms, 1 bathrooms, 1,729 square feet of living space and a 0.81-acre lot.

When was 9401 Mendenhall Ave, Upper Lake, CA built?

9401 Mendenhall Ave, Upper Lake, CA was built in 1962, making it 64 years old.

What schools serve 9401 Mendenhall Ave, Upper Lake, CA?

9401 Mendenhall Ave, Upper Lake, CA is assigned to Upper Lake Elementary School (elementary), rated D; Upper Lake High School (high), rated D+; Upper Lake Middle School (middle), rated D-. All sit in Upper Lake Union School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9401 Mendenhall Ave, Upper Lake, CA compare to other homes in Upper Lake 95485?

Among the 731 homes in Upper Lake 95485, it is worth more than 70% of them ($384,034 against a typical $309,974), its price per square foot is higher than 32% of them ($222 against a typical $245), it is bigger than 76% of them (1,729 ft² against a typical 1,248 ft²), its lot is bigger than 45% of them (0.81 ac against a typical 1.28 ac) and it is newer than 48% of them (1962 against a typical 1965). Measured against all of Lake County, it is worth more than 73% 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 9401 Mendenhall Ave, Upper Lake, CA?

The 2026 property tax bill for 9401 Mendenhall Ave, Upper Lake, CA was $3,914. The county assessed it at $341,707.

More homes on Mendenhall Ave

Closest homes

More homes in Upper Lake 95485

Assigned schools

Explore the area

See this home in context

Open 9401 Mendenhall Ave 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