Daytona Beach, FL Accessory Structures: ADU Rules (2026)

32 of the Land Development Code defines an Accessory Dwelling Unit (ADU) as a bonus residential unit added to an existing single-family lot, permitted in any zoning district where a single-family detached home is a principal use. Only one ADU is allowed per lot, and it is authorized only where a principal single-family dwelling already exists; a bare lot cannot get an ADU built first. Either the principal house or the ADU has to be owner-occupied, the ADU can be leased only to a single household, and any rental requires a written lease with a term longer than six months, ruling out short-term or nightly rentals.

The Code also requires the ADU's design to be compatible with the principal dwelling and the surrounding neighborhood, and mandates stabilized off-street parking for the ADU in addition to, not instead of, the parking already required for the main house; a lot with an ADU loses eligibility for any parking exemptions the Code might otherwise allow. 3, plus its own floor-area table: maximum floor area scales with lot size, 500 square feet on a lot of 5,000 to 7,500 square feet, 640 square feet from 7,501 to 10,000 square feet, and 800 square feet above 10,000 square feet, while minimum floor area runs 240 square feet for a studio or one-bedroom unit and 390 square feet for a two-bedroom unit.

City staff can administratively approve minor dimensional adjustments, larger in Redevelopment districts (up to 15 percent on parking dimensions, 20 percent on lot coverage and yard encroachment) than in other zoning districts (10 percent on each). b, a 7,260-square-foot minimum lot with paved parking behind the front building line.