St. Louis County property record for 510 Big Bend Rd, Ballwin, MO 63021 · Last verified February 2026
| Property Type | Parochial School, Private School |
|---|---|
| Lot Size | 20.7 acres (901,692 sqft) |
| Owner | Company Name on File |
| Flood Zone | Zone X (minimal risk) |
| APN | 25R-4-3-290-2 |
| Primary APN | 25R-4-3-290-2 |
|---|---|
| Alternative APN |
|
| Elevator | Elevator |
|---|
| Lot Area | 901,692 sqft (20.7 acres) |
|---|---|
| Lot Width | 503 ft Width |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Old Parcel Number | 25R440082 |
|---|---|
| Street Address | 510 BIG BEND RD |
| City | BALLWIN |
| State | MO |
| Zip | 63021-6587 |
| Property Category | Other |
| Property Type | Other > Parochial School, Private School |
| Legal Description | TUMULTY ESTATE LOT PT 2 BDY ADJ PARCEL PT A |
| Legal Subdivision | TUMULTY ESTATE LOT PT 2 BDY ADJ |
| Legal Lot Number | 2 |
| Jurisdiction | ST LOUIS MO |
| Township / Civil Division | QUEENY |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 217932 |
Source: St. Louis County records · APN 25R-4-3-290-2
Assessment roll updated May 31, 2025 · Last verified February 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 510 BIG BEND RD, BALLWIN, MO 63021-6587 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 19, 1989 |
| Deed Sale | May 19, 1989 |
| Deed Document Number | 1989051900520 |
| Record Updated | Jun 08, 2026 |
Source: St. Louis County records · Assessment roll updated May 31, 2025 · Last verified February 2026
| Type | Name |
|---|---|
| State | Missouri |
| County | St. Louis County |
| Unified School District | Parkway C-2 School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,991,070 (+7.76%) Land $657,090 Building $2,333,980 | $9,347,100 (+7.76%) Land $2,053,400 Building $7,293,700 | |
| 2023 | Additional exemption filed | $2,775,580 Land $460,000 Building $2,315,580 | $8,673,700 Land $1,437,500 Building $7,236,200 |
Source: FEMA National Flood Hazard Layer, St. Louis County (29189C), updated August 10, 2025 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Low above 20% of the US · above 15% of Missouri |
|---|---|
| Wildfire Likelihood | About 1 in 9,091 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 399 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Spectrum | Cable | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: WH i3B Bidco LLC/WH i3B Topco, AT&T, Wisper ISP. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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