Weld County handles building permits for all unincorporated areas, while incorporated municipalities like Greeley, Longmont, and Windsor maintain their own independent building departments and permit processes. The county requires additional review for properties located within designated floodplains or areas subject to specific oil and gas development setbacks.
How this fits with the state
The state authority here is Colorado DORA - State Electrical Board and State Plumbing Board. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.