Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 24, 2026 and October 4, 2026.
Cornelius, Oregon, in Washington County, has about 15,000 residents (2024 Census Bureau estimate). The title to a parcel in Cornelius is in the deed records of the County Clerk and its taxable value is set by the County Assessor; what is built on it is a matter for the city. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, city permits and records, evictions and court cases, records requests, directory links and common questions.
Related guides: Cornelius public records, Washington County property records, Cornelius arrest records, Cornelius warrants, Cornelius inmate search, Cornelius criminal records, Oregon arrest records and Oregon inmate search.
Deeds, Mortgages and Liens in Cornelius
Who owns a parcel in Cornelius and what it sold for are in the deed records of the County Clerk, with every lien or mortgage against the land.
SearchSystems opened and checked the County Clerk's page at washingtoncountyor.gov/at/recording (page title: Recording | Washington County, OR), phone 503-846-8752, which answered when SearchSystems opened it on September 24, 2026.
Assessed Values and the Tax Roll in Cornelius
What a parcel in Cornelius is taxed on is the business of the County Assessor, which also keeps the parcel maps. Under Measure 50 a property's maximum assessed value can rise no more than 3 percent a year, so the assessed value is usually far below the real market value the assessor also lists.
SearchSystems opened and checked the County Assessor's page at washingtoncountyor.gov/at (page title: Assessment and Taxation | Washington County, OR), phone 503-846-8752, which answered when SearchSystems opened it on September 24, 2026.
Permits and City Records in Cornelius
Building permits, zoning and code cases are the city's own. For Cornelius, SearchSystems opened and checked the city hall page at corneliusor.gov/m/directory/department?did=16 (page title: Staff Directory, Finance), phone 503-357-9112, 1355 N Barlow Street City Hall Cornelius, OR 97113, Monday through Friday 9 am to 5 pm, which answered when SearchSystems opened it on September 26, 2026.
The city clerk's page SearchSystems verified is at corneliusor.gov/220/City-Recorder (page title: City Recorder | Cornelius, OR), phone 503-357-9112, 1355 N Barlow Street Cornelius, OR 97113, Monday through Friday 9 am to 5 pm, which answered when SearchSystems opened it on September 26, 2026.
Evictions and Court Cases About Land in Cornelius
An eviction, a foreclosure, a lien dispute or a quiet title suit is a court case in the Washington County Circuit Court, and the file is public unless sealed.
The court records page SearchSystems verified for the county is at courts.oregon.gov/courts/washington/records/pages/default.aspx.
Asking a County Office for a Record
Under the Oregon Public Records Law a county office must answer a request within 15 business days where practicable, after acknowledging the request within 5, and it may charge the actual cost of making the record available.
More Official Property and Land Records Pages for Washington County
The SearchSystems directory, online since 1997, lists the official pages for Washington County and Oregon. These property pages from its Washington County listing were opened again on October 2, 2026 and each one still answers:
- MetroMap, Oregon Metro (gis.oregonmetro.gov)
Frequently Asked Questions
Who records deeds in Cornelius?
The County Clerk, at washingtoncountyor.gov/at/recording, phone 503-846-8752. Deeds, mortgages and liens on land in Cornelius are filed there, and the County Assessor (washingtoncountyor.gov/at) has the assessment records.
Who sets the assessed value of a property in Cornelius?
The County Assessor, whose page SearchSystems verified is at washingtoncountyor.gov/at.
Where are evictions from Cornelius filed?
In the Washington County Circuit Court. The file is public unless the court seals it.
How is property assessed in Oregon?
Under Measure 50 a property's maximum assessed value can rise no more than 3 percent a year, so the assessed value is usually far below the real market value the assessor also lists.
Is this the official Cornelius website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.