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Single Family ResidenceResidential
$655,272$376 / 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 87How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

23123 DECKER PRAIRIE ROSEHILL RD

MAGNOLIA, TX 77355
2
Baths
1,743 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.
28.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1982
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

$655K
$573K low$738K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,624 (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.$159,919 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$159,919
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$129,757
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$159,919

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.70
95
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
44
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
98
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
59
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
54
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.163 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.1 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
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.28.21
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 106 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.

E
Decker Prairie Elementary SchoolA-
Elementary · Grades KG–4 · 3.2 mi
M
Tomball Junior High SchoolB-
Middle · Grades 7–8 · 4.4 mi
H
Tomball High SchoolB+
High · Grades 9–12 · 4.5 mi

District: Tomball Independent School District

Neighborhood · ZIP 77355These 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.63
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.2%
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.35,817
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.637 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,874
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,017
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

23123 Decker Prairie Rosehill 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 more than 82% of homes in Montgomery County
  • Costs more per square foot than 98% of homes in Magnolia 77355
  • Among the largest lots in Magnolia 77355
  • Older than 86% of homes in Magnolia 77355

What homes are worth in Magnolia 77355

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

This home
$193K$1.4M

This home is worth more than 77% of homes in Magnolia 77355.

How it measures up in Magnolia 77355

The dot is this home. The mark in the middle is the typical home in Magnolia 77355.

Estimated value$655,272
CheaperTypical $403,332Pricier

Pricier than 77% of homes nearby

Price per ft²$376
CheaperTypical $202Pricier

Pricier than 98% of homes nearby

Living area1,743 ft²
SmallerTypical 1,997 ft²Bigger

Bigger than 38% of homes nearby

Lot size28.21 ac
SmallerTypical 0.96 acBigger

Bigger than almost all homes nearby

Year built1982
OlderTypical 2003Newer

Newer than 14% of homes nearby

How 23123 Decker Prairie Rosehill Rd ranks against every home in each area.
MeasureThis homeMagnolia 77355Montgomery County
Estimated valuepricier than$655,27277% of homes82% of homes
Price per ft²pricier than$37698% of homes98% of homes
Living areabigger than1,743 ft²38% of homes36% of homes
Lot sizebigger than28.21 acalmost all homesalmost all homes
Year builtnewer than198214% of homes18% of homes

About 23123 Decker Prairie Rosehill Rd

How much is 23123 Decker Prairie Rosehill Rd, Magnolia, TX worth?

The TopHap Estimate for 23123 Decker Prairie Rosehill Rd, Magnolia, TX is $655,272 as of Aug 30, 2026. The likely range is $572,561 to $737,983. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 23123 Decker Prairie Rosehill Rd, Magnolia, TX last sell?

23123 Decker Prairie Rosehill Rd, Magnolia, TX last sold on May 31, 2023, according to the county's recorded deed.

How big is 23123 Decker Prairie Rosehill Rd, Magnolia, TX?

23123 Decker Prairie Rosehill Rd, Magnolia, TX has 2 bathrooms, 1,743 square feet of living space and a 28.21-acre lot.

When was 23123 Decker Prairie Rosehill Rd, Magnolia, TX built?

23123 Decker Prairie Rosehill Rd, Magnolia, TX was built in 1982, making it 44 years old. The building has 1 story.

What schools serve 23123 Decker Prairie Rosehill Rd, Magnolia, TX?

23123 Decker Prairie Rosehill Rd, Magnolia, TX is assigned to Decker Prairie Elementary School (elementary), rated A-; Tomball Junior High School (middle), rated B-; Tomball High School (high), rated B+. All sit in Tomball Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 23123 Decker Prairie Rosehill Rd, Magnolia, TX compare to other homes in Magnolia 77355?

Among the 12,692 homes in Magnolia 77355, it is worth more than 77% of them ($655,272 against a typical $403,332), its price per square foot is higher than 98% of them ($376 against a typical $202), it is bigger than 38% of them (1,743 ft² against a typical 1,997 ft²), its lot is bigger than almost all of them (28.21 ac against a typical 0.96 ac) and it is newer than 14% of them (1982 against a typical 2003). Measured against all of Montgomery County, it is worth more than 82% 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 23123 Decker Prairie Rosehill Rd, Magnolia, TX?

The 2025 property tax bill for 23123 Decker Prairie Rosehill Rd, Magnolia, TX was $2,624. The county assessed it at $159,919.

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