Pierce County property record for 503 Union Ave, Steilacoom, WA 98388
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 3,627 sqft · built 1979 |
| Lot Size | 0.636 acres (27,682 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $430,457 (Dec 1998) |
| Tax Bill | $7,904 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 230500-0-751 |
| Primary APN | 230500-0-751 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Plumbing Fixtures | 13 Plumbing Fixtures |
| Stories | 2 Stories |
| Building Area | 3,627 sqft Living Area |
| Gross Area | 4,538 sqft |
| 1st Floor Area | 1,445 sqft |
| Upper Floors Area | 1,508 sqft |
| Basement Area | 1,449 sqft |
| Laundry Room | Laundry Room |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1994 |
| Architectural Style | Bi-Level |
| Exterior Material | Frame Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 27,682 sqft (0.636 acres) |
| Garage Type | Attached |
| Garage Area | 1 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Slab |
|---|---|
| Porch Area | 300 sqft |
| Deck Area | 171 sqft |
| Patio Area | 357 sqft |
| Shed | 1 Shed |
| Shed Area | 687 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Heat Pump |
| Sewer | Connected |
| Street Address | 503 UNION AVE |
|---|---|
| City | STEILACOOM |
| State | WA |
| Zip | 98388-2311 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-7.2 |
| Legal Description | SECTION 06 TOWNSHIP 19 RANGE 02 QUARTER 21 BALCHS: BALCHS L 1 B 23 & L 4 B 24 BALCHS TOG/W NWLY 1/2 OF VAC ALLEY ABUTT SD L 1 & 4 ALSO TOG/W THAT POR VAC SHORT ST ABUTT SD L 1 & 4 ABUTT SD POR OF VAC ALLEY TOG/W THAT PART L 2 & 3 B 24 BALCHS DESC AS |
| Legal Range | 02 |
| Legal Township | 19 |
| Legal Section | 06 |
| Legal Subdivision | BALCHS |
| Legal Block | 23 |
| Legal Lot Number | 1,4 |
| Jurisdiction | PIERCE WA |
| Township / Civil Division | TACOMA |
| Census Block Group | 2 |
| Census Block | 2030 |
| Census Tract | 72109 |
503 Union Ave is owned and occupied by two individuals who bought it in December 1998.
Source: Pierce County records, as of October 19, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 503 UNION AVE, STEILACOOM, WA 98388-2311 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 31, 1998 · Amount on File |
| Deed Sale | Dec 31, 1998 · Amount on File |
| Deed Document Number | 1998604 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 503 Union Ave was $7,904, up 2.6% from the year before.
Source: Pierce County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | Washington |
| County | Pierce County |
| Municipality | Steilacoom Town |
| Unified School District | Steilacoom Historical School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $7,904.00 (+2.61%) | $988,700 Land $359,500 Building $629,200 | $988,700 Land $359,500 Building $629,200 |
| 2025 | $7,703.00 (-5.24%) | ||
| 2024 | $8,129.00 (-4.81%) | $944,300 (-5.54%) Land $323,300 Building $621,000 | $944,300 (-5.54%) Land $323,300 Building $621,000 |
| 2023 | $8,540.00 | $999,700 Land $332,800 Building $666,900 | $999,700 Land $332,800 Building $666,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 503 Union Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective February 27, 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 | 8 in force |
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.
Wildfire risk around 503 Union Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 84% of Washington |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | TOWN OF STEILACOOM serves 8,545 people · EPA ID WA5384000 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Dec 2021 |
| Lead | 3 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 309 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL | 140 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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