ADU rules in St. Augustine Beach, FL — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
St. Johns County allows an Accessory Family Unit on a single-family lot. It may not exceed the lesser of 35% of the main home or 2,000 square feet, though it may be at least 800 square feet, and it meets the main home's required yards.
The St. Johns County Land Development Code permits an Accessory Family Unit as second living quarters on a single-family parcel. Its size is capped at the lesser of 35 percent of the main structure's square footage or 2,000 square feet, while the code guarantees a minimum of 800 square feet. The accessory unit must observe the same front, side, and rear yards as the main house. A separate guest house with only limited kitchen facilities, occupied under 30 days a year by a non-paying guest and never rented, is not counted as a separate dwelling unit. Any accessory unit is permitted and inspected under the Florida Building Code.
An accessory unit over the 35 percent or 2,000-square-foot cap, or one built without a permit, is denied approval. Renting a guest house converts it into a regulated dwelling unit.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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