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Single Family ResidenceResidential
$437,055$272 / 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 92How 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

18 KEY HARBOR DR

MONTGOMERY, TX 77356
3 / 1
Baths
1,608 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.
2,822 ft²
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

$437K
$402K low$472K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,267 (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.$409,430 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$55,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$354,430
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$453,582
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$409,430

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.9 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.0.07
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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.Metal
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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 · 334 ft²

Transaction History(3)

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
Lake Creek High SchoolB
High · Grades 9–12 · 4.5 mi
E
Stewart Creek Elementary SchoolA
Elementary · Grades PK–5 · 4.6 mi
M
Oak Hills Junior High SchoolA+
Middle · Grades 6–8 · 4.8 mi

District: Montgomery Independent School District

Neighborhood · ZIP 77356These 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.144
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.18

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.38,195
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.254 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$111,744
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,046
Average tempThe average temperature here across a full year.68°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

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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

18 Key Harbor Dr 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.

  • Costs more per square foot than 89% of homes in Montgomery County
  • Smaller than 74% of homes in Montgomery 77356
  • Has a smaller lot than 98% of homes in Montgomery County

What homes are worth in Montgomery 77356

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

This home
$120K$1.7M

This home is worth more than 57% of homes in Montgomery 77356.

How it measures up in Montgomery 77356

The dot is this home. The mark in the middle is the typical home in Montgomery 77356.

Estimated value$437,055
CheaperTypical $384,927Pricier

Pricier than 57% of homes nearby

Price per ft²$272
CheaperTypical $182Pricier

Pricier than 84% of homes nearby

Living area1,608 ft²
SmallerTypical 2,164 ft²Bigger

Bigger than 26% of homes nearby

Lot size2,822 ft²
SmallerTypical 0.23 acBigger

Bigger than 4% of homes nearby

Year built1998
OlderTypical 2001Newer

Newer than 43% of homes nearby

How 18 Key Harbor Dr ranks against every home in each area.
MeasureThis homeLake ConroeMontgomery 77356Montgomery County
Estimated valuepricier than$437,05564% of homes57% of homes61% of homes
Price per ft²pricier than$27287% of homes84% of homes89% of homes
Living areabigger than1,608 ft²28% of homes26% of homes29% of homes
Lot sizebigger than2,822 ft²9% of homes4% of homes2% of homes
Year builtnewer than199839% of homes43% of homes36% of homes

About 18 Key Harbor Dr

How much is 18 Key Harbor Dr, Montgomery, TX worth?

The TopHap Estimate for 18 Key Harbor Dr, Montgomery, TX is $437,055 as of Aug 30, 2026. The likely range is $401,911 to $472,199. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Key Harbor Dr, Montgomery, TX last sell?

18 Key Harbor Dr, Montgomery, TX last sold on Jul 24, 2017, according to the county's recorded deed.

How big is 18 Key Harbor Dr, Montgomery, TX?

18 Key Harbor Dr, Montgomery, TX has 3 bathrooms, 1,608 square feet of living space and a 0.07-acre lot.

When was 18 Key Harbor Dr, Montgomery, TX built?

18 Key Harbor Dr, Montgomery, TX was built in 1998, making it 28 years old. The building has 2 stories.

What schools serve 18 Key Harbor Dr, Montgomery, TX?

18 Key Harbor Dr, Montgomery, TX is assigned to Lake Creek High School (high), rated B; Stewart Creek Elementary School (elementary), rated A; Oak Hills Junior High School (middle), rated A+. All sit in Montgomery Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Key Harbor Dr, Montgomery, TX compare to other homes in Montgomery 77356?

Among the 16,745 homes in Montgomery 77356, it is worth more than 57% of them ($437,055 against a typical $384,927), its price per square foot is higher than 84% of them ($272 against a typical $182), it is bigger than 26% of them (1,608 ft² against a typical 2,164 ft²), its lot is bigger than 4% of them (2,822 ft² against a typical 0.23 ac) and it is newer than 43% of them (1998 against a typical 2001). Measured against all of Montgomery County, it is worth more than 61% 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 18 Key Harbor Dr, Montgomery, TX?

The 2024 property tax bill for 18 Key Harbor Dr, Montgomery, TX was $9,267. The county assessed it at $409,430.

More homes on Key Harbor Dr

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Assigned schools

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