Permits and inspections for residential replacements and installs of mechanical and plumbing appliances (i.e. water heater, furnace, air conditioner, etc.) are required to be approved and issued before work can be started.
Permits are required to install replacement windows and siding on residential homes. If there are structural changes or egress windows being installed, you will need to apply for an Interior Remodel permit.
An Accessory Dwelling Unit (ADU), sometimes called an "in-law apartment" or "carriage house," is typically an additional housing unit within, or on the same lot as, a single-family home with entries and amenities that are separate from the primary residence.