Boone County property record for 509 Thilly Ave, Columbia, MO 65203
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 3,037 sqft · built 1905 |
| Lot Size | 0.413 acres (18,000 sqft) |
| Owner | Owner Name on File |
| Tax Bill | $5,592 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-607-00-01-034-00 |
| Primary APN | 16-607-00-01-034-00 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 3,037 sqft Living Area |
| 1st Floor Area | 1,020 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1905 |
|---|---|
| Architectural Style | Other |
| Exterior Material | Brick |
| Lot Area | 18,000 sqft (0.413 acres) |
| Lot Dimensions | 200 ft deep x 90 ft wide |
| Garage Type | Detached |
| Garage Area | 828 sqft |
| Parking Spaces | 3 Parking Spaces |
| Patio Area | 270 sqft |
| Balcony | Balcony |
| Balcony Area | 828 sqft |
| Cooling System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Street Address | 509 THILLY AVE |
|---|---|
| City | COLUMBIA |
| State | MO |
| Zip | 65203-3460 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | WESTMOUNT ADD LOT 33 |
| Legal Range | 13 |
| Legal Township | 48 |
| Legal Section | 13 |
| Legal Subdivision | WESTMOUNT ADD |
| Legal Lot Number | 33 |
| Jurisdiction | BOONE MO |
| Township / Civil Division | MISSOURI |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 600 |
Source: Boone County assessment roll, as of August 1, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 509 THILLY AVE, COLUMBIA, MO 65203-3460 |
| Occupancy | Owner Occupied |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jun 30, 2008 |
| Transfer Doc | 0000015045 |
| Record Updated | Jun 8, 2026 |
Source: Boone County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | Missouri |
| County | Boone County |
| Municipality | Columbia City |
| Unified School District | Columbia 93 School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,592.00 (+0.9%) | $94,848 (+14.5%) Land $6,308 Building $88,540 | $499,200 (+14.5%) Land $33,200 Building $466,000 |
| 2023 | $5,542.00 (+12.12%) | $82,840 Land $6,308 Building $76,532 | $436,000 Land $33,200 Building $402,800 |
| 2022 | $4,943.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective January 30, 2022 · 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 | 1 in force |
| Nearby Flood Claims | 9 (1980–1990) |
| Claims Outside the SFHA | 3 of 9 |
| Most Recent Claim | Jun 1990 · tidal / storm surge |
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 | Low lower than 98% of the US · lower than 96% of Missouri |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF COLUMBIA UTILITIES serves 126,254 people · EPA ID MO3010181 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Dec 2025 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 195 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Socket Telecom Fiber | 2,500 / 2,500 |
| Brightspeed Fiber | 1,000 / 1,000 |
| Mediacom Communications Cable · Fiber in parts of the area | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Spectrum.
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