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Single Family ResidenceResidential
$644,994$209 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

3700 CONGRESS AVE

LAGO VISTA, TX 78645
3
Baths
3,092 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.
0.67 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$645K
$575K low$715K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,580 (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.$483,448 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$85,201
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$398,247
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$504,230
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$483,448

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyTravis
Lot (acres)The size of the land the home sits on, from county records.0.67
ConstructionThe main material the home's frame and walls are built from.Wood Frame
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.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
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 · 36 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.

H
Lago Vista High SchoolB
High · Grades 9–12 · 1.3 mi
E
Lago Vista Elementary SchoolB
Elementary · Grades EE–3 · 1.8 mi
M
Lago Vista Middle SchoolB+
Middle · Grades 6–8 · 3.6 mi

District: Lago Vista Independent School District

Neighborhood · ZIP 78645These 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.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.82%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.13,761
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.361 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,211
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,125
Average tempThe average temperature here across a full year.67°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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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

3700 Congress 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 more than 92% of homes in Highland Lake Estates
  • Costs less per square foot than 73% of homes in Travis County
  • Bigger than 96% of homes in Highland Lake Estates
  • Has a bigger lot than 94% of homes in Highland Lake Estates

What homes are worth in Leander 78645

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

This home
$147K$1.8M

This home is worth more than 77% of homes in Leander 78645.

How it measures up in Leander 78645

The dot is this home. The mark in the middle is the typical home in Leander 78645.

Estimated value$644,994
CheaperTypical $436,721Pricier

Pricier than 77% of homes nearby

Price per ft²$209
CheaperTypical $228Pricier

Pricier than 34% of homes nearby

Living area3,092 ft²
SmallerTypical 1,891 ft²Bigger

Bigger than 88% of homes nearby

Lot size0.67 ac
SmallerTypical 0.28 acBigger

Bigger than 79% of homes nearby

Year built1998
OlderTypical 2004Newer

Newer than 37% of homes nearby

How 3700 Congress Ave ranks against every home in each area.
MeasureThis homeHighland Lake EstatesLeander 78645Travis County
Estimated valuepricier than$644,99492% of homes77% of homes68% of homes
Price per ft²pricier than$20943% of homes34% of homes27% of homes
Living areabigger than3,092 ft²96% of homes88% of homes86% of homes
Lot sizebigger than0.67 ac94% of homes79% of homes90% of homes
Year builtnewer than199837% of homes37% of homes50% of homes

About 3700 Congress Ave

How much is 3700 Congress Ave, Lago Vista, TX worth?

The TopHap Estimate for 3700 Congress Ave, Lago Vista, TX is $644,994 as of Sep 24, 2026. The likely range is $574,559 to $715,429. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 3700 Congress Ave, Lago Vista, TX?

3700 Congress Ave, Lago Vista, TX has 3 bathrooms, 3,092 square feet of living space and a 0.67-acre lot.

When was 3700 Congress Ave, Lago Vista, TX built?

3700 Congress Ave, Lago Vista, TX was built in 1998, making it 28 years old. The building has 2 stories.

What schools serve 3700 Congress Ave, Lago Vista, TX?

3700 Congress Ave, Lago Vista, TX is assigned to Lago Vista High School (high), rated B; Lago Vista Elementary School (elementary), rated B; Lago Vista Middle School (middle), rated B+. All sit in Lago Vista Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3700 Congress Ave, Lago Vista, TX compare to other homes in Leander 78645?

Among the 9,881 homes in Leander 78645, it is worth more than 77% of them ($644,994 against a typical $436,721), its price per square foot is higher than 34% of them ($209 against a typical $228), it is bigger than 88% of them (3,092 ft² against a typical 1,891 ft²), its lot is bigger than 79% of them (0.67 ac against a typical 0.28 ac) and it is newer than 37% of them (1998 against a typical 2004). Measured against all of Travis County, it is worth more than 68% 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 3700 Congress Ave, Lago Vista, TX?

The 2024 property tax bill for 3700 Congress Ave, Lago Vista, TX was $7,580. The county assessed it at $483,448.

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Assigned schools

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