Washington County property record for 231 S 1st Ave, Cornelius, OR 97113
| Property Type | Quadplex |
|---|---|
| Details | 8 bd · 4 ba · 3,284 sqft · built 1979 |
| Lot Size | 0.34 acres (14,810 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $239,000 (Nov 1997) |
| Tax Bill | $5,545 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1S304BB-04400 |
| Primary APN | 1S304BB-04400 |
|---|---|
| Alternative APN |
|
| Bedrooms | 8 Beds |
|---|---|
| Full Baths | 4 Baths |
| Plumbing Fixtures | 24 Plumbing Fixtures |
| Building Area | 3,284 sqft Living Area |
| 1st Floor Area | 1,642 sqft |
| Flooring | Wood |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Quadruplex |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 14,810 sqft (0.34 acres) |
| Garage Type | Carport |
| Garage Area | 722 sqft |
| Carport | Carport |
| Carport Area | 722 sqft |
| Parking Spaces | 3 Parking Spaces |
| Deck Area | 364 sqft |
| Patio Area | 332 sqft |
| Heating System | Baseboard |
|---|---|
| Heating Fuel | Electric |
| Street Address | 201 S 1ST AVE |
|---|---|
| City | CORNELIUS |
| State | OR |
| Zip | 97113-8017 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Local Zoning Code | A2 |
| Legal Description | TARRYBROOKE NO.3, LOT PT 89 |
| Legal Range | 03W |
| Legal Township | 01S |
| Legal Section | 04 |
| Legal Subdivision | TARRYBROOKE NO.3 |
| Legal Lot Number | 89 |
| Jurisdiction | WASHINGTON OR |
| Township / Civil Division | FOREST GROVE-CORNELIUS |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 32903 |
231 S 1st Ave, a quadplex, is owned and occupied by two individuals who bought it in November 1997.
Source: Washington County records, as of May 28, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 201 S 1ST AVE, CORNELIUS, OR 97113-8017 |
| 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 | Nov 25, 1997 · Amount on File |
| Deed Sale | Nov 25, 1997 · Amount on File |
| Deed Document Number | 1997111067 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 231 S 1st Ave was $5,545, 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 | $310,570 (+3%) | $693,550 (-0.42%) Land $373,130 Building $320,420 | |
| 2025 | $5,545.00 (+2.78%) | $301,530 (+3%) | $696,500 (-7.95%) Land $376,930 Building $319,570 |
| 2024 | $5,395.00 (+9.5%) | $292,750 (+3%) | $756,640 (+3.19%) Land $386,600 Building $370,040 |
| 2023 | $4,927.00 (+12.88%) | $284,230 (+3%) | $733,270 (+5.59%) Land $386,600 Building $346,670 |
| 2022 | $4,365.00 | $275,960 | $694,420 Land $297,660 Building $396,760 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 231 S 1st 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 | 2 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.
The area around 231 S 1st 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 | 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 445 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 |
May also be available: Hunter Communications, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures