Washington County commissioners voted 5-0 on July 28, to annex roughly 12.3 acres into the Tualatin Hills Park & Recreation District, the largest single THPRD annexation the board has approved this year, according to county records.

The land includes two full tax lots, portions of six others, and adjacent right-of-way within THPRD's long-term service boundary.

No one testified at the public hearing. Chair Kathryn Harrington opened the hearing, Clerk Kevin Moss confirmed no speakers had signed up, and the board moved straight to a vote. Commissioner Nafisa Fai made the motion; Commissioner Pam Treece seconded.

The annexation took effect immediately.

What it means for property owners

Under Washington County's Community Development Code Section 501-8.3B, parcels inside THPRD's service boundary must annex to the district before any new development can receive final approval.

That means the 12.3 acres are now cleared for development review, and the property owners will begin paying into THPRD's tax base.

THPRD voters approved a $280 million replacement bond in May, passing with about 54.4% support. The bond costs homeowners roughly $120 per year on a home assessed at $325,421. Newly annexed properties will carry that same obligation.

For comparison, the board approved a separate three-acre THPRD annexation on July 7, and a 4.75-acre annexation on NW Thompson Road in the Bethany Community Plan area went through in March 2025. The July 28 action is more than triple the size of either.

$2 million for homeless services also approved

On the same evening's consent agenda, commissioners approved $2 million in one-time Supportive Housing Services funds for construction of the Hillsboro Access Center, operated by Project Homeless Connect. That item, MO 26-191, also passed 5-0 without discussion.

Public comment: residents oppose Century Boulevard Extension

Three residents — Leif Eccles, Talon Bevan, and Pam Code — testified during public comment against the Century Boulevard Extension project. Jennifer Hagen of Hillsboro submitted written testimony opposing data centers and battery storage facilities in her neighborhood.

Carol Johnson, manager of Planning and Development Services, and Associate Planner Tricia Guarisco presented the annexation to the board via PowerPoint at the July 28 meeting, according to draft minutes published by the county. The meeting adjourned at 7:17 p.m., and the annexed parcels can now proceed through THPRD's development review process.