King County property record for 31527 3rd Ave, Black Diamond, WA 98010
| Property Type | Medical Building |
|---|---|
| Details | 1,176 sqft · built 1975 |
| Lot Size | 0.062 acres (2,700 sqft) |
| Owner | Company Name on Record |
| Last Sale | $375,000 (Aug 2022) |
| Tax Bill | $3,143 (2026) |
| Deeds & Mortgages | Aug 2022 Sale & Mortgage Jan 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 112106-9071 |
| Primary APN | 112106-9071 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,176 sqft Gross Area |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 2010 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 2,700 sqft (0.062 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 112106907101 |
|---|---|
| Street Address | 31527 3RD AVE |
| City | BLACK DIAMOND |
| State | WA |
| Zip | 98010-9731 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Medical Building |
| Local Zoning Code | CC |
| Legal Description | POR OF SE 1/4 BEG 1309.55 FT S & 179.81 FT E OF CTR OF SEC TH S 17-32-50 E 60 FT TH N 72-27-10 E 45 FT TH N 17-32-50 W 60 FT TH S 72-27-10 W 45 FT TO BEG LESS C/M RGTS |
| Legal Range | 06 |
| Legal Township | 21 |
| Legal Section | 11 |
| Legal Block | 71 |
| Legal Lot Number | 112106 |
| Jurisdiction | KING WA |
| Township / Civil Division | ENUMCLAW PLATEAU |
| Census Block Group | 3 |
| Census Block | 3017 |
| 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 | Company Name on Record |
|---|---|
| Mailing Address | 30419 234TH AVE SE, BLACK DIAMOND, WA 98010-1241 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Date | Document |
|---|---|
| Aug 16, 2022 | Warranty Deed, Transfer · Stand-Alone First Mortgage COLUMBIA STATE BANK |
| Jan 24, 2017 | Warranty Deed, Transfer FIRST AMERICAN |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 16, 2022 · Amount on Record |
| Deed Sale | Aug 16, 2022 · Amount on Record |
| Prior Sale | Jan 24, 2017 · Amount on Record |
| Deed Document Number | 202222 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Aug 16, 2022 |
| Property Address | 31527 3RD AVE, BLACK DIAMOND, WA 98010-9731 |
| Document Number | 0000000022 |
| Instrument Date | Aug 12, 2022 |
| Instrument | 20220816000022 |
| Transaction Type | Transfer |
| Record Updated | Aug 25, 2022 |
| Title Company | FIRST AMERICAN |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $6,005.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 30419 234TH AVE SE, BLACK DIAMOND, WA 98010-1241 |
| Document Number | 0000000023 |
|---|---|
| Date | Aug 16, 2022 |
| Instrument | 20220816000023 |
| Name | COLUMBIA STATE BANK |
|---|---|
| Type | Bank |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Jan 24, 2017 |
| Property Address | 31527 3RD AVE, BLACK DIAMOND, WA 98010-9731 |
| Document Number | 0000000276 |
| Instrument Date | Jan 20, 2017 |
| Instrument | 20170124000276 |
| Transaction Type | Transfer |
| Record Updated | Jul 30, 2021 |
| Title Company | FIRST AMERICAN |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 24006 SE 187TH ST, MAPLE VALLEY, WA 98038-7228 |
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 | $3,143.00 (+0.42%) | ||
| 2025 | $374,000 (-) Land $80,000 Building $294,000 | $374,000 (-) Land $80,000 Building $294,000 | |
| 2024 | $3,130.00 (+59.61%) | $374,000 (+54.23%) Land $80,000 Building $294,000 | $374,000 (+54.23%) Land $80,000 Building $294,000 |
| 2022 | $1,961.00 | $242,500 Land $80,000 Building $162,500 | $242,500 Land $80,000 Building $162,500 |
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 | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 65 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Starlink Satellite | 280 / 30 |
May also be available: Skynet Broadband.
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