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Single Family ResidenceResidential
$332,640$164 / 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 96How 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 $218,500 on Dec 29, 2020

840 ROCK SPRINGS RD

CASTALIAN SPRINGS, TN 37031
3
Baths
2,024 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.
1.1 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$333K
$318K low$347K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$218,500 · Dec 29, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,056 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$74,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,050
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$57,250
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$74,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$297,200

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
39
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
89
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
21
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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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.Modular
CountySumner
Lot (acres)The size of the land the home sits on, from county records.1.10
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Footing
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
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.Deck · 216 ft²Patio · 216 ft²Porch · 88 ft²

Transaction History(6)

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
Bethpage Elementary SchoolA
Elementary · Grades PK–5 · 2.6 mi
M
Joe Shafer Middle SchoolC-
Middle · Grades 6–8 · 7.3 mi
H
Gallatin High SchoolB-
High · Grades 9–12 · 9.5 mi

District: Sumner County School District

Neighborhood · ZIP 37031These 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.80
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.4,596
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.108 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,333
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,448
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.54 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

840 Rock Springs 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.

  • Worth less than 80% of homes in Castalian Springs 37031
  • Costs less per square foot than 96% of homes in Sumner County
  • Bigger than 69% of homes in Castalian Springs 37031
  • Has a bigger lot than 72% of homes in Sumner County
  • Newer than 74% of homes in Castalian Springs 37031

What homes are worth in Castalian Springs 37031

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

This home
$160K$977K

This home is worth more than 20% of homes in Castalian Springs 37031.

How it measures up in Castalian Springs 37031

The dot is this home. The mark in the middle is the typical home in Castalian Springs 37031.

Estimated value$332,640
CheaperTypical $429,507Pricier

Pricier than 20% of homes nearby

Price per ft²$164
CheaperTypical $249Pricier

Pricier than 5% of homes nearby

Living area2,024 ft²
SmallerTypical 1,708 ft²Bigger

Bigger than 69% of homes nearby

Lot size1.1 ac
SmallerTypical 1.6 acBigger

Bigger than 35% of homes nearby

Year built2007
OlderTypical 2000Newer

Newer than 74% of homes nearby

How 840 Rock Springs Rd ranks against every home in each area.
MeasureThis homeCastalian Springs 37031Sumner County
Estimated valuepricier than$332,64020% of homes24% of homes
Price per ft²pricier than$1645% of homes4% of homes
Living areabigger than2,024 ft²69% of homes60% of homes
Lot sizebigger than1.1 ac35% of homes72% of homes
Year builtnewer than200774% of homes72% of homes

About 840 Rock Springs Rd

How much is 840 Rock Springs Rd, Castalian Springs, TN worth?

The TopHap Estimate for 840 Rock Springs Rd, Castalian Springs, TN is $332,640 as of Jul 14, 2026. The likely range is $318,407 to $346,873. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 840 Rock Springs Rd, Castalian Springs, TN last sell?

840 Rock Springs Rd, Castalian Springs, TN last sold on Dec 29, 2020 for $218,500, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 840 Rock Springs Rd, Castalian Springs, TN?

840 Rock Springs Rd, Castalian Springs, TN has 3 bathrooms, 2,024 square feet of living space and a 1.10-acre lot.

When was 840 Rock Springs Rd, Castalian Springs, TN built?

840 Rock Springs Rd, Castalian Springs, TN was built in 2007, making it 19 years old. It is a modular home. The building has 2 stories.

What schools serve 840 Rock Springs Rd, Castalian Springs, TN?

840 Rock Springs Rd, Castalian Springs, TN is assigned to Bethpage Elementary School (elementary), rated A; Joe Shafer Middle School (middle), rated C-; Gallatin High School (high), rated B-. All sit in Sumner County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 840 Rock Springs Rd, Castalian Springs, TN compare to other homes in Castalian Springs 37031?

Among the 1,975 homes in Castalian Springs 37031, it is worth more than 20% of them ($332,640 against a typical $429,507), its price per square foot is higher than 5% of them ($164 against a typical $249), it is bigger than 69% of them (2,024 ft² against a typical 1,708 ft²), its lot is bigger than 35% of them (1.1 ac against a typical 1.6 ac) and it is newer than 74% of them (2007 against a typical 2000). Measured against all of Sumner County, it is worth more than 24% 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 840 Rock Springs Rd, Castalian Springs, TN?

The 2025 property tax bill for 840 Rock Springs Rd, Castalian Springs, TN was $1,056. The county assessed it at $74,300.

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