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Single Family ResidenceResidential
$261,397$275 / 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 Sep 24, 2026
Last sold for $108,000 on Jul 6, 2016

6440 E CALLE CASTOR

TUCSON, AZ 85710
1
Baths
949 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
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

$261K
$247K low$275K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$108,000 · Jul 6, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,523 (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.$20,149 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$20,355
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$201,488

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyPima
Lot (acres)The size of the land the home sits on, from county records.0.19
RoofThe main material covering the roof, such as asphalt shingle or tile.Builtup (layered Asphalt)
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Evaporative
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(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
Wheeler Elementary SchoolB-
Elementary · Grades PK–5 · 0.3 mi
H
Palo Verde High Magnet SchoolD+
High · Grades 8–12 · 0.6 mi
M
Booth-Fickett Math/Science Magnet SchoolF
Middle · Grades PK–8 · 1.3 mi

District: Tucson Unified District

Neighborhood · ZIP 85710These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.59,087
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,928 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$56,429
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$71,934
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.85%

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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

6440 E Calle Castor 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 78% of homes in Pima County
  • Among the highest price per square foot in Terra Del Sol
  • Smaller than 95% of homes in Tucson 85710
  • Has a smaller lot than 72% of homes in Terra Del Sol
  • Older than 90% of homes in Pima County

What homes are worth in Tucson 85710

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

This home
$132K$441K

This home is worth more than 31% of homes in Tucson 85710.

How it measures up in Tucson 85710

The dot is this home. The mark in the middle is the typical home in Tucson 85710.

Estimated value$261,397
CheaperTypical $288,835Pricier

Pricier than 31% of homes nearby

Price per ft²$275
CheaperTypical $184Pricier

Pricier than almost all homes nearby

Living area949 ft²
SmallerTypical 1,555 ft²Bigger

Bigger than 5% of homes nearby

Lot size0.19 ac
SmallerTypical 0.19 acBigger

Bigger than 46% of homes nearby

Year built1957
OlderTypical 1968Newer

Newer than 11% of homes nearby

How 6440 E Calle Castor ranks against every home in each area.
MeasureThis homeTerra Del SolTucson 85710Pima County
Estimated valuepricier than$261,39726% of homes31% of homes22% of homes
Price per ft²pricier than$275almost all homesalmost all homes83% of homes
Living areabigger than949 ft²10% of homes5% of homes9% of homes
Lot sizebigger than0.19 ac28% of homes46% of homes53% of homes
Year builtnewer than195738% of homes11% of homes10% of homes

About 6440 E Calle Castor

How much is 6440 E Calle Castor, Tucson, AZ worth?

The TopHap Estimate for 6440 E Calle Castor, Tucson, AZ is $261,397 as of Sep 24, 2026. The likely range is $247,340 to $275,454. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6440 E Calle Castor, Tucson, AZ last sell?

6440 E Calle Castor, Tucson, AZ last sold on Jul 6, 2016 for $108,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 6440 E Calle Castor, Tucson, AZ?

6440 E Calle Castor, Tucson, AZ has 1 bathrooms, 949 square feet of living space and a 0.19-acre lot.

When was 6440 E Calle Castor, Tucson, AZ built?

6440 E Calle Castor, Tucson, AZ was built in 1957, making it 69 years old. The building has 1 story.

What schools serve 6440 E Calle Castor, Tucson, AZ?

6440 E Calle Castor, Tucson, AZ is assigned to Wheeler Elementary School (elementary), rated B-; Palo Verde High Magnet School (high), rated D+; Booth-Fickett Math/Science Magnet School (middle), rated F. All sit in Tucson Unified District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6440 E Calle Castor, Tucson, AZ compare to other homes in Tucson 85710?

Among the 16,686 homes in Tucson 85710, it is worth more than 31% of them ($261,397 against a typical $288,835), its price per square foot is higher than almost all of them ($275 against a typical $184), it is bigger than 5% of them (949 ft² against a typical 1,555 ft²), its lot is bigger than 46% of them (0.19 ac against a typical 0.19 ac) and it is newer than 11% of them (1957 against a typical 1968). Measured against all of Pima County, it is worth more than 22% 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 6440 E Calle Castor, Tucson, AZ?

The 2025 property tax bill for 6440 E Calle Castor, Tucson, AZ was $1,523. The county assessed it at $20,149.

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