The owner of the building is ultimately responsible for obtaining a building permit. However any agent who has the owners' authorization, and is acting on behalf of the owner may apply for the building permit.
Building permits are required by California law to ensure public health, safety and general welfare and to protect life and property. A permit is required to construct, enlarge, alter, convert (including change of occupancy, use, or character), repair, move, or demolish a structure.
Home or property owners of single-family homes, townhomes or duplexes in the City of San Diego must obtain a permit before constructing, expanding, altering, renovating, relocating, demolishing or changing the use of a building or structure.
A Coastal Development Permit (CDP) is required for the creation of all ADUs and JADUs that are not completely contained in the existing primary structure or include increases in habitable area, or include conversion of non-habitable space within the Coastal Overlay Zone.
Before you can start building your ADU, you will need permission from your local planning department. These permissions are called permits, and their costs vary depending on your location. Building permits range from $2,000 to $10,000, whereas city fees can range from $3,000 to $11,000.
A Building permit is required to construct any new structure or improve existing buildings and other structures. The more common building permit applications are for new or remodels to single dwelling units, multi-dwelling units, commercial and industrial buildings and accessory structures.
Storage sheds that are less than 120 square feet and eight feet in height do not require a building permit, but still require Planning Division approval through an over-the-counter application called a Zoning Clearance.
San Diego may not require a building permit for sheds that are 120 square feet or less that don't have any utilities. However, they still require a planning permit for sheds that are under 120 square feet. Learn more about this or obtain one of the aforementioned permits through the San Diego County Building Division.