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Single Family ResidenceResidential
$412,800$133 / 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 94How 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

638 RIVER LN

LAVON, TX 75166
4
Beds
4
Baths
3,102 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
2024
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$413K
$388K low$437K 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.$0
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$0
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.99%
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.$422,211
LOANDEPOT.COM LLC · recorded Dec 4, 2024

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$415,948 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$95,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$320,948
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$415,948

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.59
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
52
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
93
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
54
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
88
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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.minimal

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
CountyCollin
Lot (acres)The size of the land the home sits on, from county records.0.18

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.

E
Phyliss NeSmith Elementary SchoolC+
Elementary · Grades PK–5 · 1.1 mi
M
Community Trails Middle School
Middle · Grades 6–8 · 2.8 mi
H
Community High SchoolC
High · Grades 9–12 · 6.1 mi

District: Community Independent School District

Neighborhood · ZIP 75166These 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.46
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.33

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.5,153
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.354 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$117,162
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$131,107
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

638 River Ln 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 70% of homes in Collin County
  • Among the lowest price per square foot in Collin County
  • Bigger than 90% of homes in Lavon 75166
  • Has a bigger lot than 67% of homes in Lavon 75166
  • Newer than 98% of homes in Collin County

What homes are worth in Lavon 75166

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

This home
$261K$710K

This home is worth more than 68% of homes in Lavon 75166.

How it measures up in Lavon 75166

The dot is this home. The mark in the middle is the typical home in Lavon 75166.

Estimated value$412,800
CheaperTypical $364,880Pricier

Pricier than 68% of homes nearby

Price per ft²$133
CheaperTypical $171Pricier

Pricier than 5% of homes nearby

Living area3,102 ft²
SmallerTypical 2,154 ft²Bigger

Bigger than 90% of homes nearby

Lot size0.18 ac
SmallerTypical 0.15 acBigger

Bigger than 67% of homes nearby

Year built2024
OlderTypical 2022Newer

Newer than 92% of homes nearby

How 638 River Ln ranks against every home in each area.
MeasureThis homeLavon 75166Collin County
Estimated valuepricier than$412,80068% of homes30% of homes
Price per ft²pricier than$1335% of homesalmost no homes
Living areabigger than3,102 ft²90% of homes71% of homes
Lot sizebigger than0.18 ac67% of homes44% of homes
Year builtnewer than202492% of homes98% of homes

About 638 River Ln

How much is 638 River Ln, Lavon, TX worth?

The TopHap Estimate for 638 River Ln, Lavon, TX is $412,800 as of Jul 14, 2026. The likely range is $388,244 to $437,356. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 638 River Ln, Lavon, TX last sell?

638 River Ln, Lavon, TX last sold on Dec 4, 2024, according to the county's recorded deed.

How big is 638 River Ln, Lavon, TX?

638 River Ln, Lavon, TX has 4 bedrooms, 4 bathrooms, 3,102 square feet of living space and a 0.18-acre lot.

When was 638 River Ln, Lavon, TX built?

638 River Ln, Lavon, TX was built in 2024, making it 2 years old. The building has 2 stories.

What schools serve 638 River Ln, Lavon, TX?

638 River Ln, Lavon, TX is assigned to Phyliss NeSmith Elementary School (elementary), rated C+; Community Trails Middle School (middle); Community High School (high), rated C. All sit in Community Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 638 River Ln, Lavon, TX compare to other homes in Lavon 75166?

Among the 5,464 homes in Lavon 75166, it is worth more than 68% of them ($412,800 against a typical $364,880), its price per square foot is higher than 5% of them ($133 against a typical $171), it is bigger than 90% of them (3,102 ft² against a typical 2,154 ft²), its lot is bigger than 67% of them (0.18 ac against a typical 0.15 ac) and it is newer than 92% of them (2024 against a typical 2022). Measured against all of Collin County, it is worth more than 30% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on River Ln

More homes in Lavon 75166

Assigned schools

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