Washington County property record for 551 S 20th Ave, Cornelius, OR 97113
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,502 sqft · built 1978 |
| Lot Size | 0.17 acres (7,405 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $4,103 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1S303BC-07000 |
| Primary APN | 1S303BC-07000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 8 Plumbing Fixtures |
| Building Area | 1,502 sqft Living Area |
| Gross Area | 1,943 sqft |
| 1st Floor Area | 1,502 sqft |
| Flooring | Wood |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1993 |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Type | Gable/Hip |
| Roof Material | Composition Shingle |
| Lot Area | 7,405 sqft (0.17 acres) |
| Garage Type | Attached |
| Garage Area | 441 sqft |
| Driveway | Concrete Driveway |
| Driveway Area | 540 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 120 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 551 S 20TH AVE |
|---|---|
| City | CORNELIUS |
| State | OR |
| Zip | 97113-6642 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 |
| Legal Description | RANCHO VERDE, LOT 82, ACRES 0.17 |
| Legal Range | 03W |
| Legal Township | 01S |
| Legal Section | 03 |
| Legal Subdivision | RANCHO VERDE |
| Legal Lot Number | 82 |
| Jurisdiction | WASHINGTON OR |
| Township / Civil Division | FOREST GROVE-CORNELIUS |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 32904 |
551 S 20th Ave is owned and occupied by two individuals.
Source: Washington County records, as of May 28, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 551 S 20TH AVE, CORNELIUS, OR 97113-6642 |
| 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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 551 S 20th Ave was $4,103, up 2.8% from the year before.
Source: Washington County assessment roll, as of May 28, 2026
| Type | Name |
|---|---|
| State | Oregon |
| County | Washington County |
| Municipality | Cornelius City |
| Unified School District | Forest Grove School District 15 (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $229,830 (+3%) | $472,170 (-6.52%) Land $229,900 Building $242,270 | |
| 2025 | $4,103.00 (+2.75%) | $223,140 (+3%) | $505,080 (+3.29%) Land $228,000 Building $277,080 |
| 2024 | $3,993.00 (+9.52%) | $216,650 (+3%) | $488,980 (+5.22%) Land $185,820 Building $303,160 |
| 2023 | $3,646.00 (+12.84%) | $210,340 (+3%) | $464,700 (-2.2%) Land $181,690 Building $283,010 |
| 2022 | $3,231.00 | $204,220 | $475,150 Land $157,990 Building $317,160 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 551 S 20th Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective April 14, 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 | 6 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 551 S 20th Ave is low, with less than 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 98% of the US · lower than 99.5% of Oregon |
|---|---|
| Wildfire Likelihood | Under 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 | CITY OF CORNELIUS serves 14,490 people · EPA ID OR4100218 |
|---|---|
| Water Source | Purchased surface water from CITY OF HILLSBORO |
| Last State Inspection | Sep 2025 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 540 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Hunter Communications.
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