Pasco County, FL Accessory Structures: ADU Rules (2026)

Pasco County Ordinance No. 25-22 (adopted April 9, 2025) created Land Development Code (LDC) Section 530.24, which allows Accessory Dwelling Units (ADUs) in any zoning district that permits single-family dwellings, and in portions of MPUDs with single-family dwellings as a principal use. An ADU is an ancillary or secondary living unit with a separate kitchen, bathroom, and sleeping area; it may be detached, attached, a repurposed or new interior space, or an apartment over a garage. The minimum size is set by the Florida Building Code and the maximum is 1,200 square feet of living space, and the ADU must be smaller than the principal unit. ADUs must comply with the principal structure's zoning setbacks, height, and lot coverage (a Special Exception under LDC Section 402.4 may be sought to deviate from size or setbacks). No more than one ADU is permitted per lot; on-site parking is required per Section 907.1; the unit must be on a permanent fixed foundation; and where the principal home is on septic, the applicant must obtain an approval letter from the Florida Department of Health in Pasco County. A lot containing an ADU may not be subdivided to separate the ADU unless the division meets all zoning, land development, and Comprehensive Plan standards, in which case the ADU becomes a principal structure and all applicable impact and mobility fees are paid.