Oregon Zoning

Oregon: 3 cities profiled, 3 interactive explorers.

HB 2001 — Middle Housing Statewide (2019)
Cities >25k must allow duplexes, triplexes, fourplexes, and cottage clusters in all residential zones. Cities >10k must allow duplexes. No rezoning required.
SB 458 — Middle Housing Land Divisions (2022)
Each unit in a duplex, triplex, fourplex, or cottage cluster can be on its own lot for separate ownership. No minimum lot size for the new lots.
Statewide Building Codes
IBC2021
IRC2021
NEC2023
IFC2021
IECC‑RASHRAE 90.1-2022
IECC‑CASHRAE 90.1-2022
2024 codes eff. April 2026
Interactive Explorers
Eugene Eugene Land Use and Development Code, Title 11, Eugene City Code · 10 districts
Explorer
Portland Title 33 — Planning and Zoning, City of Portland Municipal Code · 18 districts
Explorer
Salem Salem Revised Code (SRC), Chapter 67 (Land Use Code) · 9 districts
Explorer
Coming Soon