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Tallahassee, FL Accessory Structures: ADU Rules (2026)

Few Restrictions

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

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

Key Facts

Maximum size: 1,200 square feet under roof
Districts: Allowed in all zoning districts
Height: No more than two stories
Detached placement: Interior side, side corner, rear yard
Density: Not counted in density calculations

ADU Eligibility Quick-Check

An Accessory Dwelling Unit (ADU) is a smaller, independent living unit on the same lot as a single-family home: converted garages, detached cottages, basement or attic conversions, and attached additions all qualify. Most states have streamlined ADU permitting since 2020, but local rules still control size, height, and setback.

Is your lot zoned single-family or multi-family residential?
Does your lot have at least 1,200 sq ft of buildable space?
Is your existing home owner-occupied (in most states this is not required, but some require it for ADU permits)?
Will the ADU stay under your state's size cap (commonly 850-1,200 sq ft for detached)?
Can you provide one off-street parking space (waived in many states within 0.5 mi of transit)?

If you answered 'yes' to most of these, you likely qualify in Florida under recent ADU streamlining laws. The Tallahassee, FL rules below cover local size, height, and setback requirements.

Summary

Tallahassee allows accessory dwelling units in all zoning districts if every standard in section 10-412 is met. An ADU cannot exceed 1,200 square feet of gross floor area under roof, or two stories in height.

mmittee on Transportation, Tourism, and Economic Development ; Community Affairs ; Gaetz Housing; Authorizing a landlord to accept reusable tenant screening reports and require a specified statement; 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. Effective Date: 7/1/2025 Last Action: 6/16/2025 Senate - Died in

Source: City of Tallahassee Code of Ordinances & Land Development Code (Municode)View official code

Full Breakdown

Land Development Code section 10-412(1) governs ADUs. A single ADU may go on a lot with a single-family or duplex residence, or on a lot with a non-residential use; inside the Multimodal Transportation District one ADU is allowed for each principal dwelling unit. The unit may be attached or detached, but not taller than two stories, and a detached ADU must sit in the interior side, side corner or rear yard. Size is capped at 1,200 square feet of gross floor area under roof. Setbacks and lot coverage match the principal structure. The listed standards do not include an owner-occupancy requirement, and the code’s definition keeps an ADU out of density calculations.

Violations & Fines

An ADU that breaks these standards violates the Land Development Code. Section 1-7 allows a fine of up to $500, imprisonment up to 60 days, or both, and each day a violation continues is a separate offense.

Frequently Asked Questions

Can I build an ADU in Tallahassee?

Yes. Section 10-412(1)b allows ADUs in all zoning districts provided every listed standard is met: one unit per lot, 1,200 square feet maximum, two stories maximum, and the principal structure’s setbacks and lot coverage.

How big can a Tallahassee ADU be?

Up to 1,200 square feet of gross floor area under roof, provided it can meet all other development standards, and no more than two stories in height.

Sources & Official References

[1]Tallahassee ADU Zoning Spotlight

Other rules in Tallahassee

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All Tallahassee rules

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

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