Columbia County property record for 309 E Main St, Dayton, WA 99328
| Property Type | Retail Stores (Personal Services, Photography, Travel) |
|---|---|
| Details | 3 ba · 4,752 sqft · built 1910 |
| Lot Size | 0.096 acres (4,199 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $4,355 (2025) |
| APN | 1-030-31-012-0001 |
| Primary APN | 1-030-31-012-0001 |
|---|---|
| Alternative APN |
|
| Full Baths | 3 Baths |
|---|---|
| Building Area | 4,752 sqft Living Area |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Roof Material | Other |
| Lot Area | 4,199 sqft (0.096 acres) |
| Total Buildings | 2 Buildings |
| Account Number | 263635 |
|---|---|
| Street Address | 309 E MAIN ST |
| City | DAYTON |
| State | WA |
| Zip | 99328-1354 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Retail Stores (Personal Services, Photography, Travel) |
| Local Zoning Code | DC2 |
| Legal Description | DAY & MUSTARD, WLY 35 LOT 11, LOT 12, BLK 31; 4200 SQ. FT. |
| Legal Subdivision | DAY & MUSTARD |
| Legal Block | 31 |
| Legal Lot Number | 11,12 |
| Jurisdiction | COLUMBIA WA |
| Township / Civil Division | DAYTON |
| Census Block Group | 2 |
| Census Block | 2045 |
| Census Tract | 960200 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Downtown Dayton Historic District listed 1999 · 29 contributing resources · NRIS 99000567 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Columbia County records, as of June 11, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 1828 W RIVERSIDE AVE, 201, SPOKANE, WA 99201-5025 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Columbia County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Washington |
| County | Columbia County |
| Municipality | Dayton City |
| Unified School District | Dayton School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,355.00 (+22.88%) | $399,990 (+22.55%) Land $41,550 Building $358,440 | $399,990 (+22.55%) Land $41,550 Building $358,440 |
| 2023 | $3,544.00 | $326,380 Land $38,800 Building $287,580 | $326,380 Land $38,800 Building $287,580 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Flood Insurance Cost | Premium on Record median of 17 policies |
| Nearby Flood Policies | 17 in force |
| Nearby Flood Claims | 43 (1978–2026) |
| Claims Outside the SFHA | 4 of 43 |
| Most Recent Claim | Mar 2026 · river or lake flooding |
| Claims by Event |
|
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 | DAYTON WATER DEPARTMENT serves 3,374 people · EPA ID WA5318250 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2021 |
| Lead | Under 1 ppb (2022–2024) 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 338 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| PocketiNet Fiber | 2,000 / 2,000 |
| Columbia iConnect Fiber · Fixed Wireless | 1,000 / 1,000 |
| Spectrum Fiber · Cable in parts of the area | 1,000 / 1,000 |
| Inland Cellular Fiber | 1,000 / 1,000 |
May also be available: Verizon.
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