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Single Family ResidenceResidential
$576,676$200 / 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 Jul 14, 2026
Last sold for $387,800 on Nov 6, 2018

778 MOUNTCASTLE DR

ROCKWALL, TX 75087
4
Beds
4
Baths
2,885 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2018
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

$577K
$551K low$602K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$387,800 · Nov 6, 2018
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.$268,776
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$215,021
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.54%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$307,900
SWBC MORTGAGE CORP · recorded Mar 25, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,579 (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.$540,868 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$133,860
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$407,008
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$512,435
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$540,868

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyROCKWALL
Lot (acres)The size of the land the home sits on, from county records.0.14
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.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Porch · 150 ft²

Transaction History(2)

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
Sherry-Paul Hamm Elementary SchoolA+
Elementary · Grades PK–6 · 0.1 mi
M
J.W. Williams Middle SchoolA-
Middle · Grades 7–8 · 0.3 mi
H
Rockwall High SchoolA
High · Grades 10–12 · 4.0 mi

District: Rockwall Independent School District

Neighborhood · ZIP 75087These 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.73
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.27

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.54,034
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,581 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,886
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$149,394
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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

778 Mountcastle 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 more than 76% of homes in Rockwall 75087
  • Costs more per square foot than 72% of homes in Rockwall 75087
  • Bigger than 69% of homes in Rockwall County
  • Has a smaller lot than 86% of homes in Rockwall 75087
  • Newer than 84% of homes in Rockwall 75087

What homes are worth in Rockwall 75087

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

This home
$250K$959K

This home is worth more than 76% of homes in Rockwall 75087.

How it measures up in Rockwall 75087

The dot is this home. The mark in the middle is the typical home in Rockwall 75087.

Estimated value$576,676
CheaperTypical $457,911Pricier

Pricier than 76% of homes nearby

Price per ft²$200
CheaperTypical $184Pricier

Pricier than 72% of homes nearby

Living area2,885 ft²
SmallerTypical 2,560 ft²Bigger

Bigger than 65% of homes nearby

Lot size0.14 ac
SmallerTypical 0.2 acBigger

Bigger than 14% of homes nearby

Year built2018
OlderTypical 2005Newer

Newer than 84% of homes nearby

How 778 Mountcastle Dr ranks against every home in each area.
MeasureThis homeRockwall 75087Rockwall County
Estimated valuepricier than$576,67676% of homes74% of homes
Price per ft²pricier than$20072% of homes67% of homes
Living areabigger than2,885 ft²65% of homes69% of homes
Lot sizebigger than0.14 ac14% of homes17% of homes
Year builtnewer than201884% of homes81% of homes

About 778 Mountcastle Dr

How much is 778 Mountcastle Dr, Rockwall, TX worth?

The TopHap Estimate for 778 Mountcastle Dr, Rockwall, TX is $576,676 as of Jul 14, 2026. The likely range is $551,294 to $602,058. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 778 Mountcastle Dr, Rockwall, TX last sell?

778 Mountcastle Dr, Rockwall, TX last sold on Nov 6, 2018 for $387,800, according to the county's recorded deed.

How big is 778 Mountcastle Dr, Rockwall, TX?

778 Mountcastle Dr, Rockwall, TX has 4 bedrooms, 4 bathrooms, 2,885 square feet of living space and a 0.14-acre lot.

When was 778 Mountcastle Dr, Rockwall, TX built?

778 Mountcastle Dr, Rockwall, TX was built in 2018, making it 8 years old. The building has 1 story.

What schools serve 778 Mountcastle Dr, Rockwall, TX?

778 Mountcastle Dr, Rockwall, TX is assigned to Sherry-Paul Hamm Elementary School (elementary), rated A+; J.W. Williams Middle School (middle), rated A-; Rockwall High School (high), rated A. All sit in Rockwall Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 778 Mountcastle Dr, Rockwall, TX compare to other homes in Rockwall 75087?

Among the 16,688 homes in Rockwall 75087, it is worth more than 76% of them ($576,676 against a typical $457,911), its price per square foot is higher than 72% of them ($200 against a typical $184), it is bigger than 65% of them (2,885 ft² against a typical 2,560 ft²), its lot is bigger than 14% of them (0.14 ac against a typical 0.2 ac) and it is newer than 84% of them (2018 against a typical 2005). Measured against all of Rockwall County, it is worth more than 74% 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 778 Mountcastle Dr, Rockwall, TX?

The 2025 property tax bill for 778 Mountcastle Dr, Rockwall, TX was $6,579. The county assessed it at $540,868.

Closest homes

More homes in Rockwall 75087

Assigned schools

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