New York-based Sky Harbour Group has proposed a new jet hangar facility at Hillsboro Airport (HIO) for 30 ultra-long-range private jets that would cause a significant increase in jet flights over Stafford, Tualatin, King City, Bull Mountain, Progress Ridge, Beaverton, Cooper Mountain, Aloha, Hillsboro, and North Plains, passing 2,300 feet above Bull Mountain, and 1,500 feet above Cooper Mountain.
Negative Impacts of Sky Harbour's Proposal:
- Frequent noise events under the flight path and near the airport
- Air Pollution: Ultra-fine particles, VOCs, black carbon, NOx, CO2
- No limitation on operating hours. No cap on jet flight activity
- Hangars would be located directly across the street from the library.
- Library and sidewalks would be hit with with jet blast and loud jet noise.
- Reduction in property values and quality of life
- Reduction of Washington County property tax revenue
The flight path could be right above your house:
Ways to Get Involved:
- Sign the Sky Harbour Petition
- Join our Sky Harbour Email List
- Talk to your neighbors
- Canvas your neighborhood
- Testify at your local City Council meeting
- Get an organization to Pass a Resolution
- Post Flyers at your local library or community center
- Submit Public Comment once the comment window opens
- Testify at the Appeal Hearing, on Zoom or in-person
Appeal Filed
On June 17, Aloha resident Sarah Richmond, Tualatin resident Brett Hamilton, and Tualatin City Council President Valerie Pratt filed a land-use appeal of the Hillsboro Planning Commission’s approval decision for the Sky Harbour Hangars. Assigned case number APPEAL-002-26, Hillsboro city staff will be reviewing the appeal documents and the Hillsboro City Council will be making a decision about hearing the appeal. Big Thank You to all who donated and to the Tualatin Riverkeepers for managing the donations!
Carbon Footprint
Private jet travel is the most carbon-intensive mode of passenger transport.
Fuel Consumption for a Private Jet: (Bombardier Global 7500)
- Burns 1000 gallons of fuel the first 30 minutes of flight (take-off and climb)
- Burns 500 gallons per hour at cruise speed. 700 gallons per hour at top speed
- 14X more pollution per-passenger-mile than a typical commercial jet
- Average fuel economy of 1 mile per gallon (1 MPG)
Hillsboro Planning Commisison Decision
On Wednesday May 27th 2026, at the Hillsboro Planning Commission hearing, City staff instructed the Commission that they were not allowed to consider air quality, noise pollution, or carbon impacts in their land use decision, because those issues are under federal jurisdiction. After a long hearing and a convoluted deliberation, the Commission voted to approve the Sky Harbour hangar proposal, with one abstention. The decision will include findings that the negative impacts of the development were not sufficiently minimized or mitigated. The Commission added a condition of approval that will require a 6’ solid wall to be built to protect the Brookwood Library from jet blast. We don’t think the commissioners understand just how big these ultra-long-range jets are. The centerline of the jet engines on a Bombardier Global 7500 are 14 feet above ground level.
One commissioner did remark that the public comments received were “almost overwhelming” so thank you to the community for making that happen. At 10am on the day of the hearing, the city had still not released the last 11 days of public comments, so we requested a continuance to give the commissioners more time to review. An hour later (at 11am) the city released a partial batch of public comments, but ultimately the commission did not grant the continuance. The hearing is closed and the next step is an appeal to the Hillsboro City Council.
Public Comments
The community has spoken out in opposition, and we need your participation to keep jet flight activity at current levels. Sample emails to the Hillsboro Planning Commission, Port of Portland, and Washington County are already written.
Realtime Flight Monitoring
If you want to know if the plane that just flew over your house is heading to Hillsboro, check the real-time tracking map on ADS-B Exchange. If you click on an airplane, it will show you their entire flight path.
in the Media
Sample Emails
Documents
- Sky Harbour Land Use Application (1/29/2026)
- FAA Categorical Exclusion Applicaiton (3/6/2026)
- FAA CATEX Decision Page (3/6/2026)
- City of Hillsboro Staff Report (5/1/2026)
- City of Hillsboro Staff Report (5/8/2026)
- Sky Harbour Presentation (5/8/2026)
- Hillsboro Supplemental Staff Report No. 4 (5/20/2026)
- Letter of Oppposition from Tualatin Councilors (5/20/2026)
- Resident Request for Continuance (5/27/2026)
- Hillsboro Supplemental Staff Report No. 5 (5/27/2026)
- Hillsboro Notice of Decision (6/02/2026)
Details of the Sky Harbour Proposal
Sky Harbour's proposal will impact property values, air quality, noise levels, and health across Washington County. A single private jet takeoff produces as much ultrafine particle pollution as hundreds of small planes.
No New Business Will Come Because of This Project
- The Port has provided no evidence that this project will attract new companies to Washington County. Companies choose locations based on: tax structure, cost of doing business and workforce availability
- Private jet convenience is not a site selection factor. Intel is a perfect example: They chose this region for tax benefits and workforce, not the airport.
- Landing private jets is a perk, not a driver of economic development. This project benefits wealthy private jet owners, not the local economy.
Don’t Blame Residents — They Bought Near a Non Commercial Airport
- The Hillsboro Airport is officially classified as a non commercial, non cargo, General Aviation airport. Homes near HIO are not discounted on Redfin, Zillow, or RMLS because the airport has historically had very low jet activity.
- Many residents have lived here 20–40+ years. They bought near a small plane airport, not a private jet hub. The sudden shift to 16–30 private jets per day is a major change in airport use that no one could have reasonably anticipated.
- This is not a case of “you should have known better.” It is a case of residents facing impacts they were never warned about.
Impacted Neighborhoods
- Affected areas include: Forest Grove, Cornelius, Rood Bridge, South Hillsboro, Reedville, Aloha, Unincorporated Beaverton (170th–198th), Cedar Hills, Cooper Mountain (east side), Elmonica, Quatama, Orenco, Tanasbourne, Tualatin, Stafford, Wilsonville, King City, Bull Mountain, Tigard, Canby, Oak Hills, Rock Creek, Bethany, Downtown Hillsboro, Jackson School, North Plains, and more.
Why This Matters
- Property values projected to drop 3%–5%
- Ultrafine particles, NOx, VOCs, black carbon will increase
- Noise events will be frequent and intense
- No environmental assessment is planned
- No cap on private jet operations
- Notice was not sent to impacted residents
- Once the infrastructure is built, additional phases become much easier to approve