Brevard County Zoning
ADU Rules for
Melbourne, Florida
Melbourne encourages ADUs on lots > 7,500 sq ft with simplified permitting.
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Updated for 2026
Zoning Code
R-1, R-2
Local ordinance code.
Max Unit Size
800 sq ft or 50%
Living area allowed.
Setbacks
5ft Rear / 5ft Side
Req. distance from lines.
Important Local Restriction
Must maintain 10ft separation from main house.
Common Questions in Melbourne
Answers based on the R-1, R-2 zoning text and local building department data.
How much does it cost to build an ADU in Melbourne?
While costs vary by finish level, the average permitted value for accessory structures in Melbourne is currently around $1,200. Prefab modular units may be cheaper, while custom concrete block construction will be higher.
What is the maximum size for a guest house in Melbourne?
Under the R-1, R-2 zoning ordinance, detached units are typically limited to 800 sq ft or 50%. However, state law SB-48 may allow for larger units if they meet specific setback requirements.
What are the setback rules for Melbourne?
You generally need to maintain a distance of 5ft Rear / 5ft Side from your property lines. Corner lots and historic districts may have stricter overlays.
Can I rent out my ADU in Melbourne?
Yes. Rental demand in Melbourne is rated as 'High'. While long-term rentals are allowed by right, short-term rentals (Airbnb) may require a separate license depending on your specific neighborhood zoning.
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