King County property record for 30404 Kummer Ave, Black Diamond, WA 98010
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.25 ba · 1,510 sqft · built 1990 |
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $155,500 (Jan 2012) |
| Tax Bill | $4,655 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 202560-0200 |
| Primary APN | 202560-0200 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.25 Baths |
| Half Baths | 2 Half Baths |
| Stories | 2 Stories |
| Building Area | 1,510 sqft Living Area |
| Gross Area | 1,950 sqft |
| 1st Floor Area | 890 sqft |
| 2nd Floor Area | 620 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Lot Area | 7,200 sqft (0.165 acres) |
| Garage Type | Attached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 202560020002 |
|---|---|
| Street Address | 30404 KUMMER AVE |
| City | BLACK DIAMOND |
| State | WA |
| Zip | 98010-9403 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | DIAMOND GLEN |
| Legal Range | 06 |
| Legal Township | 21 |
| Legal Section | 11 |
| Legal Subdivision | DIAMOND GLEN |
| Legal Lot Number | 20 |
| Jurisdiction | KING WA |
| Township / Civil Division | ENUMCLAW PLATEAU |
| Census Block Group | 3 |
| Census Block | 3012 |
| Census Tract | 31605 |
Source: King County records, as of July 7, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 30404 KUMMER AVE, BLACK DIAMOND, WA 98010-9403 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 20, 2012 · Amount on Record |
| Deed Sale | Jan 20, 2012 · Amount on Record |
| Prior Sale | Dec 28, 2006 · Amount on Record |
| Deed Document Number | 20121134 |
| Record Updated | Sep 20, 2026 |
Source: King County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | Washington |
| County | King County |
| Municipality | Black Diamond City |
| Unified School District | Enumclaw School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $4,655.00 (-1.04%) | ||
| 2025 | $527,000 (-1.5%) Land $308,000 Building $219,000 | $527,000 (-1.5%) Land $308,000 Building $219,000 | |
| 2024 | $4,704.00 (+13.9%) | $535,000 (+10.54%) Land $277,000 Building $258,000 | $535,000 (+10.54%) Land $277,000 Building $258,000 |
| 2022 | $4,130.00 | $484,000 Land $139,000 Building $345,000 | $484,000 Land $139,000 Building $345,000 |
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 September 23, 2026 · 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 |
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 80% of the US · lower than 84% of Washington |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | BLACK DIAMOND WATER DEPT serves 6,407 people · EPA ID WA5307220 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2023 |
| Lead | 2 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 45 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Skynet Broadband Fixed Wireless | 100 / 100 |
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