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Single Family ResidenceResidential
$1,162,435$330 / 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 90How 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 $617,500 on Mar 14, 2018

8521 S TRIANGLE O RANCH PL

VAIL, AZ 85641
5
Beds
4
Baths
3,524 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.
2.19 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.2M
$1M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$617,500 · Mar 14, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,008 (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.$68,449 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$65,190
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$822,982

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.2.19
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 With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Refrigerator
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(12)

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
Ocotillo Ridge Elementary SchoolA
Elementary · Grades KG–5 · 2.6 mi
H
Cienega High SchoolB+
High · Grades 9–12 · 3.8 mi
M
Old Vail Middle SchoolB-
Middle · Grades 6–8 · 3.9 mi

District: Vail Unified District

Neighborhood · ZIP 85641These 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.46
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
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.27,630
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.58 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,517
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,753
Average tempThe average temperature here across a full year.64°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

8521 S Triangle O Ranch Pl 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.

  • Among the most valuable homes in Vail 85641
  • Costs more per square foot than 97% of homes in Vail 85641
  • Bigger than 98% of homes in Vail 85641
  • Has a bigger lot than 95% of homes in Pima County
  • Newer than 84% of homes in Pima County

What homes are worth in Vail 85641

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

This home
$270K$985K

This home is worth more than almost all homes in Vail 85641.

How it measures up in Vail 85641

The dot is this home. The mark in the middle is the typical home in Vail 85641.

Estimated value$1,162,435
CheaperTypical $414,287Pricier

Pricier than almost all homes nearby

Price per ft²$330
CheaperTypical $203Pricier

Pricier than 97% of homes nearby

Living area3,524 ft²
SmallerTypical 2,090 ft²Bigger

Bigger than 98% of homes nearby

Lot size2.19 ac
SmallerTypical 0.31 acBigger

Bigger than 88% of homes nearby

Year built2006
OlderTypical 2006Newer

Newer than 53% of homes nearby

How 8521 S Triangle O Ranch Pl ranks against every home in each area.
MeasureThis homeVail 85641Pima County
Estimated valuepricier than$1,162,435almost all homes98% of homes
Price per ft²pricier than$33097% of homes93% of homes
Living areabigger than3,524 ft²98% of homes97% of homes
Lot sizebigger than2.19 ac88% of homes95% of homes
Year builtnewer than200653% of homes84% of homes

About 8521 S Triangle O Ranch Pl

How much is 8521 S Triangle O Ranch Pl, Vail, AZ worth?

The TopHap Estimate for 8521 S Triangle O Ranch Pl, Vail, AZ is $1,162,435 as of Aug 30, 2026. The likely range is $1,048,443 to $1,276,427. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8521 S Triangle O Ranch Pl, Vail, AZ last sell?

8521 S Triangle O Ranch Pl, Vail, AZ last sold on Mar 14, 2018 for $617,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8521 S Triangle O Ranch Pl, Vail, AZ?

8521 S Triangle O Ranch Pl, Vail, AZ has 5 bedrooms, 4 bathrooms, 3,524 square feet of living space and a 2.19-acre lot.

When was 8521 S Triangle O Ranch Pl, Vail, AZ built?

8521 S Triangle O Ranch Pl, Vail, AZ was built in 2006, making it 20 years old. The building has 1 story.

What schools serve 8521 S Triangle O Ranch Pl, Vail, AZ?

8521 S Triangle O Ranch Pl, Vail, AZ is assigned to Ocotillo Ridge Elementary School (elementary), rated A; Cienega High School (high), rated B+; Old Vail Middle School (middle), rated B-. All sit in Vail Unified District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8521 S Triangle O Ranch Pl, Vail, AZ compare to other homes in Vail 85641?

Among the 13,049 homes in Vail 85641, it is worth more than almost all of them ($1,162,435 against a typical $414,287), its price per square foot is higher than 97% of them ($330 against a typical $203), it is bigger than 98% of them (3,524 ft² against a typical 2,090 ft²), its lot is bigger than 88% of them (2.19 ac against a typical 0.31 ac) and it is newer than 53% of them (2006 against a typical 2006). Measured against all of Pima County, it is worth more than 98% 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 8521 S Triangle O Ranch Pl, Vail, AZ?

The 2025 property tax bill for 8521 S Triangle O Ranch Pl, Vail, AZ was $10,008. The county assessed it at $68,449.

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