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Single Family ResidenceResidential
$340,560$225 / 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 96How 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 $166,000 on Aug 31, 2009

3870 W MARS ST

TUCSON, AZ 85741
2
Baths
1,512 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.
1979
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

$341K
$328K low$353K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$166,000 · Aug 31, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,422 (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.$18,481 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$17,601
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$268,914

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.0.24
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Refrigerator
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(7)

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
Butterfield Elementary SchoolB
Elementary · Grades KG–6 · 0.6 mi
M
Tortolita Middle SchoolC+
Middle · Grades 7–8 · 1.5 mi
H
Mountain View High SchoolB+
High · Grades 9–12 · 2.5 mi

District: Marana Unified District

Neighborhood · ZIP 85741These 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.77
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.67

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.5%
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.36,252
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,569 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$71,326
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$86,923
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.11 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

3870 W Mars St 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 68% of homes in Tucson 85741
  • Costs more per square foot than 66% of homes in Tucson 85741
  • Has a bigger lot than 78% of homes in Tucson 85741
  • Older than 66% of homes in Tucson 85741

What homes are worth in Tucson 85741

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

This home
$237K$535K

This home is worth more than 68% of homes in Tucson 85741.

How it measures up in Tucson 85741

The dot is this home. The mark in the middle is the typical home in Tucson 85741.

Estimated value$340,560
CheaperTypical $319,652Pricier

Pricier than 68% of homes nearby

Price per ft²$225
CheaperTypical $213Pricier

Pricier than 66% of homes nearby

Living area1,512 ft²
SmallerTypical 1,508 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.24 ac
SmallerTypical 0.19 acBigger

Bigger than 78% of homes nearby

Year built1979
OlderTypical 1983Newer

Newer than 34% of homes nearby

How 3870 W Mars St ranks against every home in each area.
MeasureThis homeTucson 85741Pima County
Estimated valuepricier than$340,56068% of homes50% of homes
Price per ft²pricier than$22566% of homes60% of homes
Living areabigger than1,512 ft²51% of homes41% of homes
Lot sizebigger than0.24 ac78% of homes67% of homes
Year builtnewer than197934% of homes37% of homes

About 3870 W Mars St

How much is 3870 W Mars St, Tucson, AZ worth?

The TopHap Estimate for 3870 W Mars St, Tucson, AZ is $340,560 as of Sep 24, 2026. The likely range is $328,012 to $353,108. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3870 W Mars St, Tucson, AZ last sell?

3870 W Mars St, Tucson, AZ last sold on Aug 31, 2009 for $166,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 3870 W Mars St, Tucson, AZ?

3870 W Mars St, Tucson, AZ has 2 bathrooms, 1,512 square feet of living space and a 0.24-acre lot.

When was 3870 W Mars St, Tucson, AZ built?

3870 W Mars St, Tucson, AZ was built in 1979, making it 47 years old. The building has 1 story.

What schools serve 3870 W Mars St, Tucson, AZ?

3870 W Mars St, Tucson, AZ is assigned to Butterfield Elementary School (elementary), rated B; Tortolita Middle School (middle), rated C+; Mountain View High School (high), rated B+. All sit in Marana Unified District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3870 W Mars St, Tucson, AZ compare to other homes in Tucson 85741?

Among the 10,745 homes in Tucson 85741, it is worth more than 68% of them ($340,560 against a typical $319,652), its price per square foot is higher than 66% of them ($225 against a typical $213), it is bigger than 51% of them (1,512 ft² against a typical 1,508 ft²), its lot is bigger than 78% of them (0.24 ac against a typical 0.19 ac) and it is newer than 34% of them (1979 against a typical 1983). Measured against all of Pima County, it is worth more than 50% 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 3870 W Mars St, Tucson, AZ?

The 2025 property tax bill for 3870 W Mars St, Tucson, AZ was $2,422. The county assessed it at $18,481.

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