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Single Family ResidenceResidential
$915,815$462 / 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 82How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $521,000 on May 22, 2015

646 PORTSMOUTH AVE

DAVIS, CA 95616
4
Beds
2
Baths
1,982 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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.

Valuation

$916K
$752K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$521,000 · May 22, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,304 (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.$638,675 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$349,372
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$289,303
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$626,153

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyYOLO
Lot (acres)The size of the land the home sits on, from county records.0.23
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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(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.

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
Patwin Elementary SchoolB+
Elementary · Grades KG–6 · 0.8 mi
M
Ralph Waldo Emerson Junior High SchoolB
Middle · Grades 7–9 · 0.8 mi
H
Davis Senior High SchoolA+
High · Grades 10–12 · 2.3 mi

District: Davis Joint Unified School District

Neighborhood · ZIP 95616These 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.116
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.179

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.93%
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.29%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.54,569
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,713 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,069
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,891
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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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

646 Portsmouth 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 87% of homes in Yolo County
  • Costs more per square foot than 84% of homes in Yolo County
  • Bigger than 65% of homes in Yolo County
  • Has a bigger lot than 84% of homes in Davis 95616
  • Older than 85% of homes in Stonegate

What homes are worth in Davis 95616

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

This home
$459K$1.6M

This home is worth more than 65% of homes in Davis 95616.

How it measures up in Davis 95616

The dot is this home. The mark in the middle is the typical home in Davis 95616.

Estimated value$915,815
CheaperTypical $826,383Pricier

Pricier than 65% of homes nearby

Price per ft²$462
CheaperTypical $465Pricier

Pricier than 49% of homes nearby

Living area1,982 ft²
SmallerTypical 1,800 ft²Bigger

Bigger than 60% of homes nearby

Lot size0.24 ac
SmallerTypical 0.16 acBigger

Bigger than 84% of homes nearby

Year built1974
OlderTypical 1976Newer

Newer than 48% of homes nearby

How 646 Portsmouth Ave ranks against every home in each area.
MeasureThis homeStonegateDavis 95616Yolo County
Estimated valuepricier than$915,81563% of homes65% of homes87% of homes
Price per ft²pricier than$46245% of homes49% of homes84% of homes
Living areabigger than1,982 ft²59% of homes60% of homes65% of homes
Lot sizebigger than0.24 ac82% of homes84% of homes83% of homes
Year builtnewer than197415% of homes48% of homes39% of homes

About 646 Portsmouth Ave

How much is 646 Portsmouth Ave, Davis, CA worth?

The TopHap Estimate for 646 Portsmouth Ave, Davis, CA is $915,815 as of Aug 30, 2026. The likely range is $752,064 to $1,079,566. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 646 Portsmouth Ave, Davis, CA last sell?

646 Portsmouth Ave, Davis, CA last sold on May 22, 2015 for $521,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 646 Portsmouth Ave, Davis, CA?

646 Portsmouth Ave, Davis, CA has 4 bedrooms, 2 bathrooms, 1,982 square feet of living space and a 0.23-acre lot.

When was 646 Portsmouth Ave, Davis, CA built?

646 Portsmouth Ave, Davis, CA was built in 1974, making it 52 years old. The building has 1 story.

What schools serve 646 Portsmouth Ave, Davis, CA?

646 Portsmouth Ave, Davis, CA is assigned to Patwin Elementary School (elementary), rated B+; Ralph Waldo Emerson Junior High School (middle), rated B; Davis Senior High School (high), rated A+. All sit in Davis Joint Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 646 Portsmouth Ave, Davis, CA compare to other homes in Davis 95616?

Among the 9,455 homes in Davis 95616, it is worth more than 65% of them ($915,815 against a typical $826,383), its price per square foot is higher than 49% of them ($462 against a typical $465), it is bigger than 60% of them (1,982 ft² against a typical 1,800 ft²), its lot is bigger than 84% of them (0.24 ac against a typical 0.16 ac) and it is newer than 48% of them (1974 against a typical 1976). Measured against all of Yolo County, it is worth more than 87% 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 646 Portsmouth Ave, Davis, CA?

The 2025 property tax bill for 646 Portsmouth Ave, Davis, CA was $8,304. The county assessed it at $638,675.

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