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Single Family ResidenceResidential
$308,510$157 / 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 97How 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 $135,300 on Apr 7, 2016

3423 OLD SOUTH DR

RICHMOND, TX 77406
4
Beds
2
Baths
1,966 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$309K
$300K low$317K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$135,300 · Apr 7, 2016
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.$200,310
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$160,248
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.34%
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.$108,200
ON Q FINANCIAL INC · recorded Apr 7, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,788 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$277,697 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$38,903
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$238,794
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$287,411
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$277,697

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.32 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
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyFORT BEND
Lot (acres)The size of the land the home sits on, from county records.0.16
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
ViewThe type of view from the property, or another feature of the site that affects value.Interior
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 470 ft²

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
Pecan Grove Elementary SchoolB-
Elementary · Grades PK–5 · 0.2 mi
H
Travis High SchoolA-
High · Grades 9–12 · 1.7 mi
M
James Bowie Middle SchoolA
Middle · Grades 6–8 · 1.8 mi

District: Fort Bend Independent School District

Neighborhood · ZIP 77406These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
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.70,172
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,000 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$135,899
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$166,511
Average tempThe average temperature here across a full year.69°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
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

3423 Old South 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 less than 88% of homes in Richmond 77406
  • Smaller than 82% of homes in Richmond 77406
  • Older than 87% of homes in Richmond 77406

What homes are worth in Richmond 77406

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

This home
$229K$1.4M

This home is worth more than 12% of homes in Richmond 77406.

How it measures up in Richmond 77406

The dot is this home. The mark in the middle is the typical home in Richmond 77406.

Estimated value$308,510
CheaperTypical $435,493Pricier

Pricier than 12% of homes nearby

Price per ft²$157
CheaperTypical $165Pricier

Pricier than 37% of homes nearby

Living area1,966 ft²
SmallerTypical 2,646 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.16 ac
SmallerTypical 0.18 acBigger

Bigger than 38% of homes nearby

Year built1985
OlderTypical 2012Newer

Newer than 13% of homes nearby

How 3423 Old South Dr ranks against every home in each area.
MeasureThis homeRichmond 77406Fort Bend County
Estimated valuepricier than$308,51012% of homes28% of homes
Price per ft²pricier than$15737% of homes40% of homes
Living areabigger than1,966 ft²18% of homes30% of homes
Lot sizebigger than0.16 ac38% of homes37% of homes
Year builtnewer than198513% of homes20% of homes

About 3423 Old South Dr

How much is 3423 Old South Dr, Richmond, TX worth?

The TopHap Estimate for 3423 Old South Dr, Richmond, TX is $308,510 as of Jul 14, 2026. The likely range is $300,403 to $316,617. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3423 Old South Dr, Richmond, TX last sell?

3423 Old South Dr, Richmond, TX last sold on Apr 7, 2016 for $135,300, according to the county's recorded deed.

How big is 3423 Old South Dr, Richmond, TX?

3423 Old South Dr, Richmond, TX has 4 bedrooms, 2 bathrooms, 1,966 square feet of living space and a 0.16-acre lot.

When was 3423 Old South Dr, Richmond, TX built?

3423 Old South Dr, Richmond, TX was built in 1985, making it 41 years old. It is a conventional home. The building has 1 story.

What schools serve 3423 Old South Dr, Richmond, TX?

3423 Old South Dr, Richmond, TX is assigned to Pecan Grove Elementary School (elementary), rated B-; Travis High School (high), rated A-; James Bowie Middle School (middle), rated A. All sit in Fort Bend Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3423 Old South Dr, Richmond, TX compare to other homes in Richmond 77406?

Among the 24,027 homes in Richmond 77406, it is worth more than 12% of them ($308,510 against a typical $435,493), its price per square foot is higher than 37% of them ($157 against a typical $165), it is bigger than 18% of them (1,966 ft² against a typical 2,646 ft²), its lot is bigger than 38% of them (0.16 ac against a typical 0.18 ac) and it is newer than 13% of them (1985 against a typical 2012). Measured against all of Fort Bend County, it is worth more than 28% 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 3423 Old South Dr, Richmond, TX?

The 2024 property tax bill for 3423 Old South Dr, Richmond, TX was $5,788. The county assessed it at $277,697.

Closest homes

More homes in Richmond 77406

Assigned schools

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