The City of Dallas strives to provide excellent customer service for permit holders and others in need of building division services.
Our office hours are Monday through Thursday, 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 5:00 p.m.; and Friday 8:00 a.m. to 12:00 p.m.
During the week, Building staff are occasionally away from the office responding to inspection requests. The Permit Technician is generally available during office hours and can make 15 minute appointments as requested.
To talk to staff during business hours please call the Building Division at 503.831.3574.
If Building staff are unavailable, you may leave a detailed message and they will return your call as soon as possible.
Design Standards
Current design standards are as follows:
- Basic Design Wind Speed: 97 mph (Risk Category II), Exposure B
- Seismic Design Category: D1
- Snow Load: 25 psf roof, 36 psf ground
- Frost Depth 12 inches
- Soil Classification: Geotechnical Report is required to determine soil conditions
Click the link here for the Oregon Design Criteria Hub, an interactive mapping tool that provides site-specific climatic and geographic design criteria for construction projects governed by the Oregon Residential Specialty Code (ORSC).
Adopted Codes
Current adopted codes are as follows:
- Residential Code: 2023 Oregon Residential Specialty Code (ORSC)
- Building Code: 2025 Oregon Structural Specialty Code (OSSC)
- Energy Code: 2025 Oregon Energy Efficiency Specialty Code (OEESC)
- Mechanical Code: 2025 Oregon Mechanical Specialty Code (OMSC)
- Plumbing Code: 2023 State of Oregon Plumbing Specialty Code (OPSC)
- Man. Dwelling Code: 2010 Oregon Manufactured Dwelling Installation Specialty Code (OMDISC)
- Electric Code: Provided by Polk County Building Department 503.623.9237
More helpful information is available through the "Using Oregon ePermitting" website.
A list of Participating Jurisdictions using the ePermitting system is provided.