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Deltona, FL Accessory Structures: ADU Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

ADU rules in Deltona, FL, also called accessory dwelling unit regulations or granny flat ordinances, cover setbacks, owner-occupancy, parking, and permit requirements.

Key Facts

Zones
A, RE-5, RE-1, R1-AAA, AA, R1
Occupancy
Family members or caregivers
Minimum Size
400 sq ft
Maximum Size
35% of principal dwelling

Summary

Deltona allows accessory dwelling units (granny flats) in A, RE-5, RE-1, R1-AAA, AA, A, and R1 zones under Sec. 110-827. ADUs may only be used by immediate family members or domestic help/caregivers. Minimum 400 sq ft and maximum 35% of the principal dwelling's gross floor area.

requiring, rather than authorizing, local governments to adopt, by a specified date, an ordinance to allow accessory dwelling units in certain areas; authorizing a local government to provide a density bonus incentive to landowners who make certain real property donations to assist in the provision of affordable housing for military families; requiring the Office of Program Policy Analysis and Government Accountability to evaluate the efficacy of using mezzanine finance and the potential of tiny homes for specified purposes, etc.

Source: Deltona Code § 110-827 (Accessory uses and structures)View official code

Full Breakdown

Section 110-827 permits granny flats in specified residential zoning classifications. Units are restricted to immediate family members or caregiver/servant quarters. ADUs must be at least 400 square feet and cannot exceed 35% of the principal dwelling's gross floor area. In RE-1, RE-5, and A zones, detached second-story garage apartments and mother-in-law apartments may serve as ADUs for family members or servants.

Frequently Asked Questions

Can I build an ADU on my property in Deltona?
Deltona allows accessory dwelling units (granny flats) in A, RE-5, RE-1, R1-AAA, AA, A, and R1 zones under Sec. 110-827. ADUs may only be used by immediate family members or domestic help/caregivers. Minimum 400 sq ft and maximum 35% of the principal dwelling's gross floor area.
What are the size limits for an accessory dwelling unit in Deltona?
Zones: A, RE-5, RE-1, R1-AAA, AA, R1. Occupancy: Family members or caregivers. Minimum Size: 400 sq ft. Maximum Size: 35% of principal dwelling.

Sources & Official References

Other rules in Deltona

All Deltona rules

How Deltona compares: Easiest Cities to Build an ADU·Florida rules heatmap·Compare Deltona to another location·View the Florida accessory structures overview

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ADU Rules in Nearby Cities

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