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Single Family ResidenceResidential
$1,035,660$916 / 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 88How 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

517 MIDDLEFIELD DR

APTOS, CA 95003
3
Beds
1.5
Baths
1,131 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.
3,877 ft²
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1M
$907K low$1.2M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,513 (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.$359,750 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$216,718
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$143,032
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$352,696
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$718,830

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.27
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
25
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
23
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
53
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

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
CountySANTA CRUZ
Lot (acres)The size of the land the home sits on, from county records.0.09
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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.Garage, Attached
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 · 234 ft²Patio · 234 ft²

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
Mar Vista ElementaryB-
Elementary · Grades KG–6 · 0.6 mi
M
Aptos Junior HighC
Middle · Grades 7–8 · 2.0 mi
H
Aptos High SchoolA-
High · Grades 9–12 · 3.1 mi

District: Pajaro Valley Joint Unified School District

Neighborhood · ZIP 95003These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.423

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.83%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.24,334
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.691 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,307
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$167,097
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.28 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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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

517 Middlefield Dr 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 76% of homes in Seacliff Park
  • Costs more per square foot than 81% of homes in Santa Cruz County
  • Smaller than 86% of homes in Aptos 95003
  • Has a smaller lot than 76% of homes in Santa Cruz County
  • Older than 70% of homes in Aptos 95003

What homes are worth in Aptos 95003

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

This home
$600K$3.9M

This home is worth more than 31% of homes in Aptos 95003.

How it measures up in Aptos 95003

The dot is this home. The mark in the middle is the typical home in Aptos 95003.

Estimated value$1,035,660
CheaperTypical $1,233,618Pricier

Pricier than 31% of homes nearby

Price per ft²$916
CheaperTypical $704Pricier

Pricier than 79% of homes nearby

Living area1,131 ft²
SmallerTypical 1,688 ft²Bigger

Bigger than 14% of homes nearby

Lot size3,877 ft²
SmallerTypical 0.14 acBigger

Bigger than 27% of homes nearby

Year built1966
OlderTypical 1976Newer

Newer than 30% of homes nearby

How 517 Middlefield Dr ranks against every home in each area.
MeasureThis homeSeacliff ParkAptos 95003Santa Cruz County
Estimated valuepricier than$1,035,66024% of homes31% of homes47% of homes
Price per ft²pricier than$91645% of homes79% of homes81% of homes
Living areabigger than1,131 ft²27% of homes14% of homes23% of homes
Lot sizebigger than3,877 ft²30% of homes27% of homes24% of homes
Year builtnewer than196659% of homes30% of homes43% of homes

About 517 Middlefield Dr

How much is 517 Middlefield Dr, Aptos, CA worth?

The TopHap Estimate for 517 Middlefield Dr, Aptos, CA is $1,035,660 as of Aug 30, 2026. The likely range is $907,460 to $1,163,860. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 517 Middlefield Dr, Aptos, CA last sell?

517 Middlefield Dr, Aptos, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 517 Middlefield Dr, Aptos, CA?

517 Middlefield Dr, Aptos, CA has 3 bedrooms, 1.5 bathrooms, 1,131 square feet of living space and a 0.09-acre lot.

When was 517 Middlefield Dr, Aptos, CA built?

517 Middlefield Dr, Aptos, CA was built in 1966, making it 60 years old.

What schools serve 517 Middlefield Dr, Aptos, CA?

517 Middlefield Dr, Aptos, CA is assigned to Mar Vista Elementary (elementary), rated B-; Aptos Junior High (middle), rated C; Aptos High School (high), rated A-. All sit in Pajaro Valley Joint Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 517 Middlefield Dr, Aptos, CA compare to other homes in Aptos 95003?

Among the 10,171 homes in Aptos 95003, it is worth more than 31% of them ($1,035,660 against a typical $1,233,618), its price per square foot is higher than 79% of them ($916 against a typical $704), it is bigger than 14% of them (1,131 ft² against a typical 1,688 ft²), its lot is bigger than 27% of them (3,877 ft² against a typical 0.14 ac) and it is newer than 30% of them (1966 against a typical 1976). Measured against all of Santa Cruz County, it is worth more than 47% 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 517 Middlefield Dr, Aptos, CA?

The 2025 property tax bill for 517 Middlefield Dr, Aptos, CA was $5,513. The county assessed it at $359,750.

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