Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential
$580,765$149 / 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 Jul 14, 2026

126 RATHFARNUM DR

WELDON SPRING, MO 63304
3
Beds
3
Baths
3,910 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.
2,614 ft²
Lot SizeThe size of the land the home sits on, from county records.
1995
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
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

$581K
$550K low$611K high
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.$580,765
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$464,612

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$99,523 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$93,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$523,803

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyST. CHARLES
Lot (acres)The size of the land the home sits on, from county records.0.06
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.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 · 54 ft²Porch · 231 ft²

Transaction History(2)

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.

M
Bryan Middle SchoolA
Middle · Grades 6–8 · 2.2 mi
E
Independence Elementary SchoolA+
Elementary · Grades KG–5 · 2.2 mi
H
Francis Howell High SchoolA+
High · Grades 9–12 · 4.9 mi

District: Francis Howell R-Iii School District

Neighborhood · ZIP 63304These 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.61
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 100.111

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.0%
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.46,402
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,137 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,292
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$146,266
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
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

126 Rathfarnum 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.

  • Worth more than 89% of homes in St. Charles County
  • Among the lowest price per square foot in Whitmoor Country Club
  • Bigger than 94% of homes in St. Charles County
  • Has a smaller lot than 95% of homes in Saint Charles 63304
  • Newer than 81% of homes in Whitmoor Country Club

What homes are worth in Saint Charles 63304

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

This home
$174K$1.1M

This home is worth more than 82% of homes in Saint Charles 63304.

How it measures up in Saint Charles 63304

The dot is this home. The mark in the middle is the typical home in Saint Charles 63304.

Estimated value$580,765
CheaperTypical $389,733Pricier

Pricier than 82% of homes nearby

Price per ft²$149
CheaperTypical $190Pricier

Pricier than 14% of homes nearby

Living area3,910 ft²
SmallerTypical 2,169 ft²Bigger

Bigger than 92% of homes nearby

Lot size2,614 ft²
SmallerTypical 0.25 acBigger

Bigger than 5% of homes nearby

Year built1995
OlderTypical 1991Newer

Newer than 66% of homes nearby

How 126 Rathfarnum Dr ranks against every home in each area.
MeasureThis homeWhitmoor Country ClubSaint Charles 63304St. Charles County
Estimated valuepricier than$580,76520% of homes82% of homes89% of homes
Price per ft²pricier than$149almost no homes14% of homes22% of homes
Living areabigger than3,910 ft²50% of homes92% of homes94% of homes
Lot sizebigger than2,614 ft²15% of homes5% of homes7% of homes
Year builtnewer than199581% of homes66% of homes51% of homes

About 126 Rathfarnum Dr

How much is 126 Rathfarnum Dr, Weldon Spring, MO worth?

The TopHap Estimate for 126 Rathfarnum Dr, Weldon Spring, MO is $580,765 as of Jul 14, 2026. The likely range is $550,238 to $611,292. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 126 Rathfarnum Dr, Weldon Spring, MO last sell?

126 Rathfarnum Dr, Weldon Spring, MO last sold on Oct 1, 2021, according to the county's recorded deed.

How big is 126 Rathfarnum Dr, Weldon Spring, MO?

126 Rathfarnum Dr, Weldon Spring, MO has 3 bedrooms, 3 bathrooms, 3,910 square feet of living space and a 0.06-acre lot.

When was 126 Rathfarnum Dr, Weldon Spring, MO built?

126 Rathfarnum Dr, Weldon Spring, MO was built in 1995, making it 31 years old. It is a ranch home. The building has 1 story.

What schools serve 126 Rathfarnum Dr, Weldon Spring, MO?

126 Rathfarnum Dr, Weldon Spring, MO is assigned to Bryan Middle School (middle), rated A; Independence Elementary School (elementary), rated A+; Francis Howell 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 126 Rathfarnum Dr, Weldon Spring, MO compare to other homes in Saint Charles 63304?

Among the 15,714 homes in Saint Charles 63304, it is worth more than 82% of them ($580,765 against a typical $389,733), its price per square foot is higher than 14% of them ($149 against a typical $190), it is bigger than 92% of them (3,910 ft² against a typical 2,169 ft²), its lot is bigger than 5% of them (2,614 ft² against a typical 0.25 ac) and it is newer than 66% of them (1995 against a typical 1991). Measured against all of St. Charles County, it is worth more than 89% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

Closest homes

More homes in Weldon Spring 63304

Assigned schools

Explore the area

See this home in context

Open 126 Rathfarnum Dr 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