1. Site Related - Exterior WORK PROPOSED PERMIT NEEDED? WHAT TYPE OF PERMIT? Grading and clearing Site Development Permit (SD) if there is no structure Build a private street Site Development Permit (SD) Tree cutting on my property Visit Development Services Center staff to determine if the site needs a Zoning Permit (ZP) and Site Development Permit (SD). Trees 12 inches and greater in diameter may require an Urban Forestry Permit. Please call (503) 823-4489. Retaining walls taller than 4’ or any wall with sloping backfill or surcharged Building Permit (RS) ; Site Development Permit (SD) for walls in new subdivision Add a driveway with new or replacement curb cut Zoning Permit (ZP) Add paving for driveway with existing, unaltered curb cut Zoning Permit (ZP) Add a concrete patio on grade (private property) Visit Planning & Zoning staff at the Development Services Center or call (503) 823-7526 to determine if a Zoning Permit (ZP) is needed. Water Heater:   New electric water heater Electrical Permit (ET), Plumbing Permit (PT) New gas water heater Mechanical Permit (MT), Plumbing Permit (PT) Replace electric to gas Mechanical Permit (MT), Plumbing Permit (PT) Replace gas to electric Electrical Permit (ET), Plumbing Permit (PT) In kind (ie. gas to gas, etc.) Plumbing Permit (PT) Sewer Connection:   Connection on property Plumbing Permit (PT) Connection in right of way Utility Connection (UC) Repair in right of way Utility Repair (UR)