Accessory Structures in Sumter County, FL (2026)
2 rules for unincorporated Sumter County, Florida.
Verified from official government sources
ADU Rules
Sumter County allows one accessory dwelling unit per lot in agricultural and residential zones. The parcel must be at least a half acre, the ADU cannot count toward density, and its living area must run at least 400 square feet and no more than 40 percent of the principal home's floor area.
Accessory Dwelling Unit Rules in Sumter County
Some RestrictionsSumter County Code § 13-511(a)-(c)
(a)No more than one (1) principal dwelling unit and one (1) ADU shall be permitted on any lot or parcel.(b)The property shall be a minimum of one-half (½) acre in size. ... (c)The living area of an ADU shall be at least four hundred (400) square feet in size and may be a maximum of forty (40) percent of the gross floor area of the principal residential structure
Shed & Carport Rules
Sumter County caps a residential storage building at 1,000 square feet and requires a building permit before it goes up, even if the shed is otherwise exempt elsewhere in the code. Small accessory buildings under 100 square feet may sit as close as one foot from a residential lot line.
Shed and Storage Building Rules, Sumter County
Some RestrictionsSumter County Code § 13-510(b)(1); § 13-517(a)
(1)In residential zoning districts, accessory buildings of not more than one hundred (100) square feet shall be required to observe a one (1) foot setback from lot lines, provided such building does not exceed ten (10) feet in height. ... (a)Storage buildings accessory to a conventionally built residential unit shall meet the following standards:(1)The accessory building shall not exceed one th...
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