ADU Builders in Hillsborough County, FL
We've found 13 ADU builders serving Hillsborough County, Florida. They cover addition, garage conversion and more. Browse builders below or visit their websites for details.
ADU Rules
Building an ADU in Hillsborough County
Detached ADU✓ Allowed
Garage Conversion✓ Allowed
Max ADU size950 sq ft
Owner occupancyRequired
Short-term rental⚠ Restricted
Permit timeline: typically 4–12 weeks
ADUs only permitted in 8 designated eligible neighborhoods — NOT citywide Every ADU requires a Special Use permit BEFORE building permit can be issued
Source: adufloridainfo.com · Last updated Mar 2026
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