Sky Harbour Group Withdraws Hillsboro Airport Hangar Application, Plans to Resubmit

Sky Harbour Group formally withdrew its development review application to build private aircraft hangars at Hillsboro Airport in Hillsboro, Oregon on Sept. 9, ending the city's current review process. The company said it needed additional time to investigate and address concerns raised by residents and Hillsboro City Council members during an Aug. 18 appeals hearing.

In a Sept. 9 letter to the city, Sky Harbour said it "heard and takes seriously" the community's comments, adding that the time remaining in the existing review process was insufficient to gather the necessary information. David Annin wrote on behalf of Sky Harbour Group that the company decided to withdraw and resubmit the application. No new application has been filed, and Sky Harbour has not identified a resubmission date.

The Port of Portland, which owns the proposed development property at 2315 N.E. Brookwood Parkway, consented to the withdrawal. Port Chief Aviation Officer Dan Pippenger formally confirmed the consent in a Sept. 3 letter. Port of Portland Aviation Communications and Media Relations Manager Molly Prescott confirmed the withdrawal, stating Sky Harbour "intends to resubmit" the application.

The withdrawal terminates the two pending appeals before the Hillsboro City Council, since there is no longer an active development application for the council to review. The city's previous 120-day review deadline of Oct. 7 no longer applies, and an Oct. 6 City Council agenda item related to the project has been removed. The project had previously received approval from the Hillsboro Planning Commission before being appealed to the City Council; during the appeal, residents raised concerns about airport operations, while city staff noted that authority over aircraft operations and emissions largely rests with the Federal Aviation Administration, with federal law limiting what cities can regulate.

If Sky Harbour resubmits, the proposal will be treated as an entirely new application with a new case number, a completeness review, and a public notice process. Depending on whether Sky Harbour seeks major adjustments to city code requirements, the new application would undergo either a Type II administrative review or a Type III review before the Planning Commission, which includes a public hearing.

Private hangar development near existing general aviation airports routinely runs into local land-use processes that sit alongside, and sometimes in tension with, federal authority over aircraft operations. Here, city staff pointed out that noise and emissions concerns raised by residents largely fall under FAA jurisdiction, even though the underlying land-use approval remains a municipal decision subject to appeal.

Starting the review over resets the clock: a new case number, a fresh completeness review, and a new public notice period, with the review track (Type II or Type III) depending on how much of the city code Sky Harbour asks to adjust. That procedural restart is itself the practical cost of the withdrawal, regardless of how the underlying merits are eventually decided.

The next dated marker will be whichever filing Sky Harbour submits and the case number the city assigns to it; until that happens, the Oct. 7 deadline and the removed Oct. 6 agenda item mark the point at which the prior process ended rather than any resolution of the residents' concerns.