Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$944,686$756 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $820,000 on Dec 29, 2022

623 PLUM ST

NOVATO, CA 94945
3
Beds
2
Baths
1,249 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$945K
$872K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$820,000 · Dec 29, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,072 (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.$870,184 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$519,988
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$350,196
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$853,128

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Contemporary
CountyMARIN
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.1959
Lot (acres)The size of the land the home sits on, from county records.0.22
HeatingThe type of heating system in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 265 ft²Patio · 265 ft²

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.

E
Olive Elementary SchoolB+
Elementary · Grades KG–5 · 0.1 mi
M
Sinaloa Middle SchoolB+
Middle · Grades 6–8 · 2.3 mi
H
San Marin High SchoolB+
High · Grades 9–12 · 3.0 mi

District: Novato Unified School District

Neighborhood · ZIP 94945These 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.80
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 100.343

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.1%
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.18,041
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.609 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,671
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,139
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.31 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

623 Plum St 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 77% of homes in Marin County
  • Costs more per square foot than 96% of homes in Novato 94945
  • Smaller than 87% of homes in Northeast Novato
  • Older than 84% of homes in Novato 94945

What homes are worth in Novato 94945

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

This home
$512K$2.3M

This home is worth more than 44% of homes in Novato 94945.

How it measures up in Novato 94945

The dot is this home. The mark in the middle is the typical home in Novato 94945.

Estimated value$944,686
CheaperTypical $986,855Pricier

Pricier than 44% of homes nearby

Price per ft²$756
CheaperTypical $530Pricier

Pricier than 96% of homes nearby

Living area1,249 ft²
SmallerTypical 1,829 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.22 ac
SmallerTypical 0.19 acBigger

Bigger than 63% of homes nearby

Year built1954
OlderTypical 1974Newer

Newer than 16% of homes nearby

How 623 Plum St ranks against every home in each area.
MeasureThis homeNortheast NovatoNovato 94945Marin County
Estimated valuepricier than$944,68638% of homes44% of homes23% of homes
Price per ft²pricier than$75695% of homes96% of homes47% of homes
Living areabigger than1,249 ft²13% of homes15% of homes18% of homes
Lot sizebigger than0.22 ac43% of homes63% of homes62% of homes
Year builtnewer than195421% of homes16% of homes30% of homes

About 623 Plum St

How much is 623 Plum St, Novato, CA worth?

The TopHap Estimate for 623 Plum St, Novato, CA is $944,686 as of Sep 24, 2026. The likely range is $872,204 to $1,017,168. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 623 Plum St, Novato, CA last sell?

623 Plum St, Novato, CA last sold on Dec 29, 2022 for $820,000, according to the county's recorded deed.

How big is 623 Plum St, Novato, CA?

623 Plum St, Novato, CA has 3 bedrooms, 2 bathrooms, 1,249 square feet of living space and a 0.22-acre lot.

When was 623 Plum St, Novato, CA built?

623 Plum St, Novato, CA was built in 1954, making it 72 years old. It is a contemporary home.

What schools serve 623 Plum St, Novato, CA?

623 Plum St, Novato, CA is assigned to Olive Elementary School (elementary), rated B+; Sinaloa Middle School (middle), rated B+; San Marin High School (high), rated B+. All sit in Novato Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 623 Plum St, Novato, CA compare to other homes in Novato 94945?

Among the 5,950 homes in Novato 94945, it is worth more than 44% of them ($944,686 against a typical $986,855), its price per square foot is higher than 96% of them ($756 against a typical $530), it is bigger than 15% of them (1,249 ft² against a typical 1,829 ft²), its lot is bigger than 63% of them (0.22 ac against a typical 0.19 ac) and it is newer than 16% of them (1954 against a typical 1974). Measured against all of Marin County, it is worth more than 23% 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 623 Plum St, Novato, CA?

The 2025 property tax bill for 623 Plum St, Novato, CA was $11,072. The county assessed it at $870,184.

More homes on Plum St

Closest homes

More homes in Novato 94945

Assigned schools

Explore the area

See this home in context

Open 623 Plum St 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