Washington County property record for 4510 SW 99th Ave, Beaverton, OR 97005
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 9 bd · 6 ba · 9,920 sqft · built 1970 |
| Lot Size | 0.43 acres (18,731 sqft) |
| Owner | Company Name on File |
| Last Sale | $375,000 (Sep 2004) |
| Tax Bill | $12,920 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1S114BA-07000 |
| Primary APN | 1S114BA-07000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 9 Beds |
|---|---|
| Full Baths | 6 Baths |
| Plumbing Fixtures | 30 Plumbing Fixtures |
| Building Area | 9,920 sqft Living Area |
| 1st Floor Area | 9,920 sqft |
| Basement Area | 3,900 sqft |
| Flooring | Wood |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Exterior Material | Wood |
| Construction Type | Wood |
| Foundation Type | Footing |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 18,731 sqft (0.43 acres) |
| Garage Type | Open |
| Garage Area | 7,000 sqft |
| Deck Area | 400 sqft |
| Patio Area | 1,486 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 4510 SW 99TH AVE |
|---|---|
| City | BEAVERTON |
| State | OR |
| Zip | 97005-3316 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | R2 |
| Legal Description | 1992-090 PARTITION PLAT, LOT 2, ACRES 0.43 |
| Legal Range | 01W |
| Legal Township | 01S |
| Legal Section | 14 |
| Legal Subdivision | 1992-090 PARTITION PLAT |
| Legal Lot Number | 2 |
| Jurisdiction | WASHINGTON OR |
| Township / Civil Division | BEAVERTON-HILLSBORO |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 31301 |
4510 SW 99th Ave, a residential property, is owned by a company that bought it in September 2004.
Source: Washington County records, as of May 28, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 25534, PORTLAND, OR 97298-0534 |
| Owner Type | Company |
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 | Name on Deed |
|---|---|
| Last Sale | Sep 9, 2004 · Amount on File |
| Deed Sale | Sep 9, 2004 · Amount on File |
| Prior Sale | Jun 19, 1995 · Amount on File |
| Deed Document Number | 2004104727 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4510 SW 99th Ave was $12,920, up 4.1% from the year before.
Source: Washington County assessment roll, as of May 28, 2026
| Type | Name |
|---|---|
| State | Oregon |
| County | Washington County |
| Unified School District | Beaverton School District 48J (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $605,740 (+3%) | $1,469,500 (-) Land $198,000 Building $1,271,500 | |
| 2025 | $12,920.00 (+4.13%) | $588,100 (+3%) | $1,469,500 (-3.66%) Land $198,000 Building $1,271,500 |
| 2024 | $12,408.00 (+5.92%) | $570,980 (+3%) | $1,525,360 (-7.13%) Land $198,000 Building $1,327,360 |
| 2023 | $11,714.00 (+4.48%) | $554,350 (+3%) | $1,642,450 (+7.06%) Land $198,000 Building $1,444,450 |
| 2022 | $11,212.00 | $538,210 | $1,534,120 Land $186,000 Building $1,348,120 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4510 SW 99th Ave in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective April 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 24 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 24 in force |
| Nearby Flood Claims | 1 (2015) |
| Most Recent Claim | Dec 2015 · Severe Winter Storms, Straight-line Winds, Flooding, Landslides, And Mudslides |
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.
The area around 4510 SW 99th Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 | WEST SLOPE WATER DISTRICT serves 11,000 people · EPA ID OR4100660 |
|---|---|
| Water Source | Purchased surface water from PORTLAND WATER BUREAU |
| Last State Inspection | May 2021 |
| Lead | 5 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead public education Mar 2018 |
| Monitoring and Reporting | 2 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 344 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ziply Fiber Fiber | 6,000 / 6,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T, CenturyLink, T-Mobile.
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