Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,993,475$1,030 / 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 93How 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 $995,000 on Jan 22, 2010

17 PORTSMOUTH RD

PIEDMONT, CA 94610
4
Beds
2
Baths
1,936 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1923
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2M
$1.8M low$2.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$995,000 · Jan 22, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$21,329 (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.$1,309,957 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$392,987
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$916,970
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,284,275
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,013,930

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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(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
Wildwood Elementary SchoolA
Elementary · Grades KG–5 · 0.2 mi
M
Piedmont Middle SchoolA-
Middle · Grades 6–8 · 0.4 mi
H
Piedmont High SchoolA
High · Grades 9–12 · 0.5 mi

District: Piedmont City Unified School District

Neighborhood · ZIP 94610These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.507

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.31,044
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.14,202 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$132,514
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$172,604
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.22 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

17 Portsmouth Rd 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 91% of homes in Alameda County
  • Costs more per square foot than 93% of homes in Alameda County
  • Bigger than 69% of homes in Alameda County
  • Older than 87% of homes in Alameda County

What homes are worth in Oakland 94610

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

This home
$265K$3.5M

This home is worth more than 82% of homes in Oakland 94610.

How it measures up in Oakland 94610

The dot is this home. The mark in the middle is the typical home in Oakland 94610.

Estimated value$1,993,475
CheaperTypical $1,222,439Pricier

Pricier than 82% of homes nearby

Price per ft²$1030
CheaperTypical $658Pricier

Pricier than 90% of homes nearby

Living area1,936 ft²
SmallerTypical 1,849 ft²Bigger

Bigger than 53% of homes nearby

Lot size0.12 ac
SmallerTypical 0.14 acBigger

Bigger than 37% of homes nearby

Year built1923
OlderTypical 1926Newer

Newer than 34% of homes nearby

How 17 Portsmouth Rd ranks against every home in each area.
MeasureThis homeOakland 94610Alameda County
Estimated valuepricier than$1,993,47582% of homes91% of homes
Price per ft²pricier than$103090% of homes93% of homes
Living areabigger than1,936 ft²53% of homes69% of homes
Lot sizebigger than0.12 ac37% of homes37% of homes
Year builtnewer than192334% of homes13% of homes

About 17 Portsmouth Rd

How much is 17 Portsmouth Rd, Piedmont, CA worth?

The TopHap Estimate for 17 Portsmouth Rd, Piedmont, CA is $1,993,475 as of Aug 30, 2026. The likely range is $1,845,919 to $2,141,031. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Portsmouth Rd, Piedmont, CA last sell?

17 Portsmouth Rd, Piedmont, CA last sold on Jan 22, 2010 for $995,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 17 Portsmouth Rd, Piedmont, CA?

17 Portsmouth Rd, Piedmont, CA has 4 bedrooms, 2 bathrooms, 1,936 square feet of living space and a 0.12-acre lot.

When was 17 Portsmouth Rd, Piedmont, CA built?

17 Portsmouth Rd, Piedmont, CA was built in 1923, making it 103 years old. The building has 2 stories.

What schools serve 17 Portsmouth Rd, Piedmont, CA?

17 Portsmouth Rd, Piedmont, CA is assigned to Wildwood Elementary School (elementary), rated A; Piedmont Middle School (middle), rated A-; Piedmont High School (high), rated A. All sit in Piedmont City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17 Portsmouth Rd, Piedmont, CA compare to other homes in Oakland 94610?

Among the 7,525 homes in Oakland 94610, it is worth more than 82% of them ($1,993,475 against a typical $1,222,439), its price per square foot is higher than 90% of them ($1030 against a typical $658), it is bigger than 53% of them (1,936 ft² against a typical 1,849 ft²), its lot is bigger than 37% of them (0.12 ac against a typical 0.14 ac) and it is newer than 34% of them (1923 against a typical 1926). Measured against all of Alameda County, it is worth more than 91% 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 17 Portsmouth Rd, Piedmont, CA?

The 2025 property tax bill for 17 Portsmouth Rd, Piedmont, CA was $21,329. The county assessed it at $1,309,957.

More homes on Portsmouth Rd

Closest homes

More homes in Piedmont 94610

Assigned schools

Explore the area

See this home in context

Open 17 Portsmouth Rd 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