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Single Family ResidenceResidential
$80,723$77 / 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 Jul 14, 2026

421 RETAMOSA AVE

SANTA ROSA, TX 78593
0
Baths
1,052 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2005
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$81K
$72K low$89K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$80,723
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$64,578

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$682 (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.$47,198 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$33,156
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$61,720
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$42,907
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$94,876

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.52
41
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
41
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
100
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
34
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
47
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 percent flood zone

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
CountyCameron
Lot (acres)The size of the land the home sits on, from county records.0.17
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Pier/Post & Beam
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.None
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 236 ft²

Transaction History(1)

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.

M
Jo Nelson Middle SchoolC+
Middle · Grades 6–8 · 0.5 mi
H
Santa Rosa High SchoolC+
High · Grades 9–12 · 0.5 mi
E
Elma E Barrera Elementary SchoolB
Elementary · Grades PK–5 · 1.2 mi

District: Santa Rosa Independent School District

Neighborhood · ZIP 78593These 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.115
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 100.16

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.6.7%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.22%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.6,276
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.159 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$39,096
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$60,723
Average tempThe average temperature here across a full year.74°F
Annual precipHow much rain and melted snow falls here in a typical year.25 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

421 Retamosa Ave 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 93% of homes in Cameron County
  • Costs less per square foot than 96% of homes in Cameron County
  • Smaller than 71% of homes in Cameron County
  • Has a smaller lot than 70% of homes in Santa Rosa 78593
  • Newer than 76% of homes in Santa Rosa 78593

What homes are worth in Santa Rosa 78593

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

This home
$45K$415K

This home is worth more than 21% of homes in Santa Rosa 78593.

How it measures up in Santa Rosa 78593

The dot is this home. The mark in the middle is the typical home in Santa Rosa 78593.

Estimated value$80,723
CheaperTypical $124,458Pricier

Pricier than 21% of homes nearby

Price per ft²$77
CheaperTypical $104Pricier

Pricier than 17% of homes nearby

Living area1,052 ft²
SmallerTypical 1,184 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.17 ac
SmallerTypical 0.7 acBigger

Bigger than 30% of homes nearby

Year built2005
OlderTypical 1992Newer

Newer than 76% of homes nearby

How 421 Retamosa Ave ranks against every home in each area.
MeasureThis homeSanta Rosa 78593Cameron County
Estimated valuepricier than$80,72321% of homes7% of homes
Price per ft²pricier than$7717% of homes4% of homes
Living areabigger than1,052 ft²40% of homes29% of homes
Lot sizebigger than0.17 ac30% of homes49% of homes
Year builtnewer than200576% of homes73% of homes

About 421 Retamosa Ave

How much is 421 Retamosa Ave, Santa Rosa, TX worth?

The TopHap Estimate for 421 Retamosa Ave, Santa Rosa, TX is $80,723 as of Jul 14, 2026. The likely range is $72,263 to $89,183. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Retamosa Ave, Santa Rosa, TX last sell?

421 Retamosa Ave, Santa Rosa, TX last sold on Apr 29, 2011, according to the county's recorded deed.

How big is 421 Retamosa Ave, Santa Rosa, TX?

421 Retamosa Ave, Santa Rosa, TX has 1,052 square feet of living space and a 0.17-acre lot.

When was 421 Retamosa Ave, Santa Rosa, TX built?

421 Retamosa Ave, Santa Rosa, TX was built in 2005, making it 21 years old. The building has 1 story.

What schools serve 421 Retamosa Ave, Santa Rosa, TX?

421 Retamosa Ave, Santa Rosa, TX is assigned to Jo Nelson Middle School (middle), rated C+; Santa Rosa High School (high), rated C+; Elma E Barrera Elementary School (elementary), rated B. All sit in Santa Rosa Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Retamosa Ave, Santa Rosa, TX compare to other homes in Santa Rosa 78593?

Among the 2,227 homes in Santa Rosa 78593, it is worth more than 21% of them ($80,723 against a typical $124,458), its price per square foot is higher than 17% of them ($77 against a typical $104), it is bigger than 40% of them (1,052 ft² against a typical 1,184 ft²), its lot is bigger than 30% of them (0.17 ac against a typical 0.7 ac) and it is newer than 76% of them (2005 against a typical 1992). Measured against all of Cameron County, it is worth more than 7% 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 421 Retamosa Ave, Santa Rosa, TX?

The 2025 property tax bill for 421 Retamosa Ave, Santa Rosa, TX was $682. The county assessed it at $47,198.

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Assigned schools

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