ADUs & Guest Houses in Jacksonville, Florida
Accessory dwelling units, in-law suites, and detached guest houses.
About ADUs & Guest Houses in Jacksonville
Jacksonville's ADU-friendly zoning and generous lot sizes make it one of the best markets in Northeast Florida for accessory dwelling units. Wilson & Co builds detached guest houses, garage conversions, and in-law suites throughout greater Jacksonville — from compact units on urban infill lots in Riverside to spacious guest houses on half-acre Mandarin properties.
Duval County has been increasingly supportive of ADU development as part of its housing strategy. Jacksonville lots in established neighborhoods like Riverside, Avondale, and San Marco often have alley-accessible rear yards ideal for detached ADU placement. Suburban lots in Mandarin and Southside have even more room to work with.
What's Included
- Detached guest houses and cottages (up to 1,000+ sq ft)
- Garage-to-living-space conversions
- Attached in-law suites with separate entrance
- Full kitchen and bathroom installations
- Independent HVAC systems for separate climate control
- Separate electrical panels and utility metering options
- ADA-accessible design for aging-in-place applications
- Matching architectural style to primary residence
- Site planning for setbacks, drainage, and parking requirements
- Impact-rated windows and doors for Florida code compliance
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Our ADUs & Guest Houses Process in Jacksonville
Feasibility
We research your lot's zoning, setbacks, utility access, and local ADU regulations before design begins.
Design
Architectural plans optimized for your lot, including floor plan, elevations, and material selections.
Permitting
We submit to the county and coordinate impact fees, utility connections, and inspections.
Construction
Ground-up build including foundation, framing, MEP, exterior, and interior finishes.
Completion
Final inspections, certificate of occupancy, and turnover.
ADUs & Guest Houses in Jacksonville — FAQ
What are Jacksonville's ADU zoning requirements?
Jacksonville allows ADUs in most residential zones with conditions on size (typically 50% of main dwelling or 1,000 sq ft max), height, setbacks, and parking. We research your specific lot before design.
How much does an ADU cost in Jacksonville?
Jacksonville ADUs typically cost $140-$250 per square foot. A 500 sq ft studio ADU runs $70,000-$125,000. A full 800 sq ft one-bedroom guest house runs $112,000-$200,000.
Can I add a kitchen to my Jacksonville garage conversion?
Yes. Garage conversions with full kitchens are permitted in most Jacksonville residential zones. We handle plumbing, electrical, HVAC, and permitting for the complete conversion.
ADUs & Guest Houses in Nearby Areas
Ready for ADUs & Guest Houses in Jacksonville?
Contact Wilson & Co Design Build today for a free consultation and detailed quote.