Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$493,277$131 / 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 95How 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
Last sold for $261,400 on Dec 18, 2002

21 MONTICELLO CT

SAINT CHARLES, MO 63303
4
Beds
3.5
Baths
3,777 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1989
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$493K
$470K low$517K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$261,400 · Dec 18, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,122 (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.$85,440 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$79,064
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$449,686

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.Bi-Level
CountyST. CHARLES
Lot (acres)The size of the land the home sits on, from county records.0.41
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.DeckPatio · 224 ft²Porch · 91 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.

E
Becky-David Elementary SchoolA+
Elementary · Grades PK–5 · 1.5 mi
M
Barnwell Middle SchoolA+
Middle · Grades 6–8 · 1.5 mi
H
Francis Howell North High SchoolA
High · Grades 9–12 · 2.0 mi

District: Francis Howell R-Iii School District

Neighborhood · ZIP 63303These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.120

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.1%
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.49,298
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,208 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,943
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,979
Average tempThe average temperature here across a full year.55°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.57%

Owner Tools

Do you own this home?
Claim this home

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

21 Monticello Ct 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 86% of homes in Saint Charles 63303
  • Costs less per square foot than 93% of homes in St. Charles County
  • Bigger than 94% of homes in Saint Charles 63303
  • Has a bigger lot than 86% of homes in Saint Charles 63303

What homes are worth in Saint Charles 63303

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

This home
$131K$740K

This home is worth more than 86% of homes in Saint Charles 63303.

How it measures up in Saint Charles 63303

The dot is this home. The mark in the middle is the typical home in Saint Charles 63303.

Estimated value$493,277
CheaperTypical $354,174Pricier

Pricier than 86% of homes nearby

Price per ft²$131
CheaperTypical $172Pricier

Pricier than 10% of homes nearby

Living area3,777 ft²
SmallerTypical 2,004 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.41 ac
SmallerTypical 0.22 acBigger

Bigger than 86% of homes nearby

Year built1989
OlderTypical 1988Newer

Newer than 53% of homes nearby

How 21 Monticello Ct ranks against every home in each area.
MeasureThis homeSaint Charles 63303St. Charles County
Estimated valuepricier than$493,27786% of homes80% of homes
Price per ft²pricier than$13110% of homes7% of homes
Living areabigger than3,777 ft²94% of homes93% of homes
Lot sizebigger than0.41 ac86% of homes85% of homes
Year builtnewer than198953% of homes40% of homes

About 21 Monticello Ct

How much is 21 Monticello Ct, Saint Charles, MO worth?

The TopHap Estimate for 21 Monticello Ct, Saint Charles, MO is $493,277 as of Sep 24, 2026. The likely range is $469,941 to $516,613. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Monticello Ct, Saint Charles, MO last sell?

21 Monticello Ct, Saint Charles, MO last sold on Dec 18, 2002 for $261,400, according to the county's recorded deed.

How big is 21 Monticello Ct, Saint Charles, MO?

21 Monticello Ct, Saint Charles, MO has 4 bedrooms, 3.5 bathrooms, 3,777 square feet of living space and a 0.41-acre lot.

When was 21 Monticello Ct, Saint Charles, MO built?

21 Monticello Ct, Saint Charles, MO was built in 1989, making it 37 years old. It is a bi-level home. The building has 2 stories.

What schools serve 21 Monticello Ct, Saint Charles, MO?

21 Monticello Ct, Saint Charles, MO is assigned to Becky-David Elementary School (elementary), rated A+; Barnwell Middle School (middle), rated A+; Francis Howell North High School (high), rated A. All sit in Francis Howell R-Iii School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Monticello Ct, Saint Charles, MO compare to other homes in Saint Charles 63303?

Among the 16,151 homes in Saint Charles 63303, it is worth more than 86% of them ($493,277 against a typical $354,174), its price per square foot is higher than 10% of them ($131 against a typical $172), it is bigger than 94% of them (3,777 ft² against a typical 2,004 ft²), its lot is bigger than 86% of them (0.41 ac against a typical 0.22 ac) and it is newer than 53% of them (1989 against a typical 1988). Measured against all of St. Charles County, it is worth more than 80% 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 21 Monticello Ct, Saint Charles, MO?

The 2025 property tax bill for 21 Monticello Ct, Saint Charles, MO was $5,122. The county assessed it at $85,440.

More homes on Monticello Ct

Closest homes

More homes in Saint Charles 63303

Assigned schools

Explore the area

See this home in context

Open 21 Monticello Ct on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map