ADUs for Single-Family Homes [Learn More]
If you have a Single-Family home, you can add an ADU in one of three ways:
✔ Junior ADU (JADU) – Converts existing space inside your home (like a bedroom or garage) into a small unit (500 sq. ft. max). Requires the owner to live on the property.
✔ Category One ADU – Converts or rebuilds an existing space (like a garage or basement). No expansions are allowed, except for a small entrance (up to 150 sq. ft.).
✔ Category Two ADU – Builds a new attached or detached structure on the property.
ADUs for Multi-Family Homes [Learn More]
If you own a Multi-Family building (duplex, apartment, etc.), you may be able to add ADUs in different ways:
✔ Category One ADU – Converts non-living spaces (such as storage rooms, attics, or garages) into housing.
✔ Category Two ADU – Builds new detached ADUs or converts existing detached structures into ADUs.
✔ Category Three ADU – Creates one new ADU by converting or attaching an ADU to the primary building. No other ADUs are allowed on the lot if this option is chosen.
Pre-Approved ADU Plans [Learn More]
Oakland offers pre-approved ADU building plans for easier and faster approval. These plans meet the latest building codes and are available for Studio, One Bedroom, or Two-Bedroom dwellings.
Benefits of Pre-Approved Plans:
· Faster approval process
· Lower permit fees
· Potential cost savings