St. Louis County property record for 45 Mason Ave, Saint Louis, MO 63119
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,103 sqft · built 1910 |
| Lot Size | 0.367 acres (16,000 sqft) |
| Owner | Owner Name on Record |
| Last Sale | $294,000 (Jan 1999) |
| Tax Bill | $10,929 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 23K-5-3-067-2 |
| Primary APN | 23K-5-3-067-2 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Plumbing Fixtures | 10 Plumbing Fixtures |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,103 sqft Living Area |
| 1st Floor Area | 1,386 sqft |
| Family Room | Family Room |
| Fireplaces | 2 Fireplaces |
| Fireplace | Fireplace |
| Year Built | Built 1910 |
|---|---|
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Foundation Type | Raised |
| Lot Area | 16,000 sqft (0.367 acres) |
| Lot Dimensions | 160 ft deep x 100 ft wide |
| Garage Type | Detached |
| Garage Area | 676 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Area | 648 sqft |
|---|---|
| Porch | Porch |
| Porch Area | 21 sqft |
| Deck Area | 25 sqft |
| Patio Area | 339 sqft |
| Balcony | Balcony |
| Balcony Area | 54 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 45 MASON AVE |
|---|---|
| City | SAINT LOUIS |
| State | MO |
| Zip | 63119-2505 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 64A1 |
| Legal Description | WEBSTER PARK BLKS A-C & L-N & BLK PT K AMENDED BLK N LOT 6 |
| Legal Subdivision | WEBSTER PARK BLKS A-C & L-N & BLK PT K |
| Legal Block | N |
| Legal Lot Number | 6 |
| Jurisdiction | ST LOUIS MO |
| Township / Civil Division | JEFFERSON |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 219200 |
Source: St. Louis County records, as of February 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on Record |
|---|---|
| Mailing Address | 45 MASON AVE, SAINT LOUIS, MO 63119-2505 |
| Occupancy | Owner Occupied |
| Last Sale | Jan 26, 1999 · Amount on Record |
|---|---|
| Deed Sale | Jan 26, 1999 · Amount on Record |
| Deed Document Number | 0660 |
| Deed Book / Page | 11957 / 133 |
| Record Updated | Jun 8, 2026 |
Source: St. Louis County assessment roll, as of May 31, 2025
| Type | Name |
|---|---|
| State | Missouri |
| County | St. Louis County |
| Municipality | Webster Groves City |
| Unified School District | Webster Groves School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $191,080 (+21.07%) Land $98,970 Building $92,110 | $1,005,700 (+21.07%) Land $520,900 Building $484,800 | |
| 2024 | $10,929.00 (+0.49%) | ||
| 2023 | $10,876.00 (+0.25%) | $157,830 (+7.43%) Land $70,110 Building $87,720 | $830,700 (+7.44%) Land $369,000 Building $461,700 |
| 2022 | $10,849.00 | $146,910 Land $70,110 Building $76,800 | |
| 2021 | $773,200 Land $369,000 Building $404,200 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective August 10, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 3 (1979–2022) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Jul 2022 · river or lake flooding |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | MO AMERICAN ST LOUIS ST CHARLES COUNTIES private · serves 1,111,000 people · EPA ID MO6010716 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2024 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 367 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: ClearWave, Wisper ISP.
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