Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$435,619$246 / 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

403 W MAHAN ST

RICHWOOD, TX 77531
1
Baths
1,769 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.
1994
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

$436K
$391K low$480K 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.$435,619
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$348,495

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,339 (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.$440,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$219,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$220,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$292,820
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$440,000

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.67
82
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
37
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
95
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
51
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
71
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.72 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.75%
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.0.2 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
CountyBrazoria
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2000
Lot (acres)The size of the land the home sits on, from county records.2.19
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Electric
CoolingThe type of cooling or air conditioning in the home.Central
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.Patio · 192 ft²Porch · 201 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
Gladys Polk Elementary SchoolA+
Elementary · Grades PK–4 · 0.5 mi
H
Brazoswood High SchoolC-
High · Grades 9–12 · 2.2 mi
M
Clute Intermediate SchoolC
Middle · Grades 5–8 · 2.6 mi

District: Brazosport Independent School District

Neighborhood · ZIP 77531These 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.125
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.80%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
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.16,727
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.828 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,283
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,350
Average tempThe average temperature here across a full year.70°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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.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

403 W Mahan 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 98% of homes in Clute 77531
  • Costs more per square foot than 98% of homes in Clute 77531
  • Has a bigger lot than 98% of homes in Clute 77531

What homes are worth in Clute 77531

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

This home
$98K$444K

This home is worth more than 98% of homes in Clute 77531.

How it measures up in Clute 77531

The dot is this home. The mark in the middle is the typical home in Clute 77531.

Estimated value$435,619
CheaperTypical $221,750Pricier

Pricier than 98% of homes nearby

Price per ft²$246
CheaperTypical $137Pricier

Pricier than 98% of homes nearby

Living area1,769 ft²
SmallerTypical 1,580 ft²Bigger

Bigger than 64% of homes nearby

Lot size2.19 ac
SmallerTypical 0.24 acBigger

Bigger than 98% of homes nearby

Year built1994
OlderTypical 1978Newer

Newer than 61% of homes nearby

How 403 W Mahan St ranks against every home in each area.
MeasureThis homeClute 77531Brazoria County
Estimated valuepricier than$435,61998% of homes76% of homes
Price per ft²pricier than$24698% of homes93% of homes
Living areabigger than1,769 ft²64% of homes43% of homes
Lot sizebigger than2.19 ac98% of homes91% of homes
Year builtnewer than199461% of homes40% of homes

About 403 W Mahan St

How much is 403 W Mahan St, Richwood, TX worth?

The TopHap Estimate for 403 W Mahan St, Richwood, TX is $435,619 as of Jul 14, 2026. The likely range is $391,145 to $480,093. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 403 W Mahan St, Richwood, TX last sell?

403 W Mahan St, Richwood, TX last sold on Aug 1, 2024, according to the county's recorded deed.

How big is 403 W Mahan St, Richwood, TX?

403 W Mahan St, Richwood, TX has 1 bathrooms, 1,769 square feet of living space and a 2.19-acre lot.

When was 403 W Mahan St, Richwood, TX built?

403 W Mahan St, Richwood, TX was built in 1994, making it 32 years old. The building has 1 story.

What schools serve 403 W Mahan St, Richwood, TX?

403 W Mahan St, Richwood, TX is assigned to Gladys Polk Elementary School (elementary), rated A+; Brazoswood High School (high), rated C-; Clute Intermediate School (middle), rated C. All sit in Brazosport Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 403 W Mahan St, Richwood, TX compare to other homes in Clute 77531?

Among the 4,348 homes in Clute 77531, it is worth more than 98% of them ($435,619 against a typical $221,750), its price per square foot is higher than 98% of them ($246 against a typical $137), it is bigger than 64% of them (1,769 ft² against a typical 1,580 ft²), its lot is bigger than 98% of them (2.19 ac against a typical 0.24 ac) and it is newer than 61% of them (1994 against a typical 1978). Measured against all of Brazoria County, it is worth more than 76% 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 403 W Mahan St, Richwood, TX?

The 2024 property tax bill for 403 W Mahan St, Richwood, TX was $2,339. The county assessed it at $440,000.

Closest homes

More homes in Richwood 77531

Assigned schools

Explore the area

See this home in context

Open 403 W Mahan St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map