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Single Family ResidenceResidential
$2,676,916$1,442 / 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 Jun 23, 2026
Last sold for $498,750 on Jun 23, 2022

647 N NASSAU RD

ROUND TOP, TX 78954
0
Baths
1,856 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.
8.64 ac
Lot SizeThe size of the land the home sits on, from county records.
2023
Year BuiltThe year the home was originally built, according to county records.

Valuation

$2.7M
$2.4M low$2.9M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$498,750 · Jun 23, 2022
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.$401,326
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$321,061
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.85%
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.$1,273,400
BANK OF HOUSTON · recorded Aug 31, 2022
2nd 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.$903,350
BANK OF HOUSTON
3rd 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.$98,840

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,588 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$744,264 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,473,290
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$294,740
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$620,220
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,768,030

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.53
38
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
47
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
99
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.
30
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.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.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
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyFAYETTE
Lot (acres)The size of the land the home sits on, from county records.8.64
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

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
Round Top-Carmine Elementary SchoolA
Elementary · Grades PK–6 · 3.9 mi
M
Round Top-Carmine High SchoolA+
Middle · Grades 7–12 · 7.8 mi

District: Round Top-Carmine Independent School District

Neighborhood · ZIP 78954These 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.133
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
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.66%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
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.0.9%
PopulationHow many people live in this area.1,213
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.16 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,543
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,620
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.60%

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

647 N Nassau Rd 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.

  • Among the most valuable homes in Fayette County
  • Among the highest price per square foot in Fayette County
  • Has a bigger lot than 72% of homes in Fayette County
  • Among the newest homes in Round Top 78954

What homes are worth in Round Top 78954

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

This home
$256K$3.4M

This home is worth more than 90% of homes in Round Top 78954.

How it measures up in Round Top 78954

The dot is this home. The mark in the middle is the typical home in Round Top 78954.

Estimated value$2,676,916
CheaperTypical $1,055,598Pricier

Pricier than 90% of homes nearby

Price per ft²$1442
CheaperTypical $490Pricier

Pricier than 96% of homes nearby

Living area1,856 ft²
SmallerTypical 2,047 ft²Bigger

Bigger than 40% of homes nearby

Lot size8.64 ac
SmallerTypical 5.08 acBigger

Bigger than 59% of homes nearby

Year built2023
OlderTypical 2005Newer

Newer than almost all homes nearby

How 647 N Nassau Rd ranks against every home in each area.
MeasureThis homeRound Top 78954Fayette County
Estimated valuepricier than$2,676,91690% of homesalmost all homes
Price per ft²pricier than$144296% of homesalmost all homes
Living areabigger than1,856 ft²40% of homes60% of homes
Lot sizebigger than8.64 ac59% of homes72% of homes
Year builtnewer than2023almost all homesalmost all homes

About 647 N Nassau Rd

How much is 647 N Nassau Rd, Round Top, TX worth?

The TopHap Estimate for 647 N Nassau Rd, Round Top, TX is $2,676,916 as of Jun 23, 2026. The likely range is $2,409,224 to $2,944,607. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 647 N Nassau Rd, Round Top, TX last sell?

647 N Nassau Rd, Round Top, TX last sold on Jun 23, 2022 for $498,750, according to the county's recorded deed.

How big is 647 N Nassau Rd, Round Top, TX?

647 N Nassau Rd, Round Top, TX has 1,856 square feet of living space and a 8.64-acre lot.

When was 647 N Nassau Rd, Round Top, TX built?

647 N Nassau Rd, Round Top, TX was built in 2023, making it 3 years old. It is a mobile home home.

What schools serve 647 N Nassau Rd, Round Top, TX?

647 N Nassau Rd, Round Top, TX is assigned to Round Top-Carmine Elementary School (elementary), rated A; Round Top-Carmine High School (middle), rated A+. All sit in Round Top-Carmine Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 647 N Nassau Rd, Round Top, TX compare to other homes in Round Top 78954?

Among the 613 homes in Round Top 78954, it is worth more than 90% of them ($2,676,916 against a typical $1,055,598), its price per square foot is higher than 96% of them ($1442 against a typical $490), it is bigger than 40% of them (1,856 ft² against a typical 2,047 ft²), its lot is bigger than 59% of them (8.64 ac against a typical 5.08 ac) and it is newer than almost all of them (2023 against a typical 2005). Measured against all of Fayette County, it is worth more than almost all 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 647 N Nassau Rd, Round Top, TX?

The 2026 property tax bill for 647 N Nassau Rd, Round Top, TX was $19,588. The county assessed it at $744,264.

Closest homes

More homes in Round Top 78954

Assigned schools

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