320
Sq ft · studio ADU
Studio
Open-plan studio with kitchenette, full bath, sleeping nook. Single-occupant. Highest ROI for short-term rental.
$44,800
BioBox · ADUs
Backyard living. Factory-fast.
As of July 1, 2025, every single-family lot in Florida is required to permit at least one ADU by right (FL SB 184). BioBox accessory dwelling units are factory-built, steel-frame, hurricane-rated, and mold-proof — purpose-engineered to make adding rental income or extra living space painless.
$44.8K
Starting price
$468M
FL ADU market 2026
9.19%
Annual growth (CAGR)
60
Day delivery
The legislation
Florida SB 184: every single-family lot must permit one ADU.
Signed April 2025, effective July 1, 2025. Florida SB 184 requires every single-family residential lot in the state to permit at least one accessory dwelling unit by right — zero local exceptions. Cities and counties cannot block, prohibit, or impose excessive setback/parking/architectural requirements that effectively prevent ADU construction.
By right
"By right" means the permit cannot be discretionarily denied. As long as your ADU meets state code, the municipality must approve it.
No local exceptions
Cities and counties cannot opt out. SB 184 preempts local zoning for ADU placement on single-family lots statewide.
Streamlined permitting
Setbacks, parking minimums, and architectural review must not be more restrictive for ADUs than they are for the primary dwelling.
For property owners, this is a one-time legislative gift: add a fully-permitted second dwelling to your lot, generate rental income, house family, or build out a workspace — without the multi-year zoning fight that previously made ADUs impractical in many Florida cities.
Why BioBox
SB 184 ready. Hurricane-safe. Mold-proof. Move-in fast.
Conventional ADU construction takes 12+ months, exposes materials to weather, and uses the same wood/drywall stack that fails in Florida humidity. BioBox is built for the actual conditions an ADU has to survive.
Factory-built
Manufactured in a controlled environment while site prep happens in parallel. Ships pre-assembled. On-site setup in days, not months.
Hurricane-rated 200+ MPH
Steel frame + FEMA-certified fiberglass sheathing. ICC-approved. Same disaster-grade spec as our luxury custom builds.
Mold-proof for renters
All-inorganic materials. Zero water absorption. Eliminates the #1 ADU complaint in Florida — protecting both your tenant's health and your asset value.
Permit-friendly footprint
Pre-engineered configurations match SB 184 size + setback parameters. Engineered drawings included. Faster municipal review.
Rental-ready
Full kitchen, full bath, HVAC, finishes — all included. Move a tenant in the day after CO. Generate income immediately.
10-year warranty
Materials and labor for a decade. Lower long-term operating cost. Higher resale value for the primary property.
Configurations
Three ADU sizes. All SB-184 ready.
400
Sq ft · 1-BR ADU
One-bedroom
Separate bedroom, full kitchen, full bath. Long-term rental friendly. Most-popular ADU size.
$56,000
600
Sq ft · 2-BR ADU
Two-bedroom
Two bedrooms or 1 BR + dedicated office. Family-friendly tenant pool. Premium rental income.
$84,000
Pricing at $140/sq ft. Includes MgO panels, impact-rated windows and doors, electrical, plumbing, HVAC, flooring, and fixtures — move-in ready. Site prep, foundation, utility connections, and permitting are quoted separately based on your specific lot.
Permitting flow
From phone call to certificate of occupancy.
01
Discovery
15-min call. We confirm your lot is SB 184 eligible (it is, if zoned single-family residential) and discuss size + intended use.
02
Design + permit
We provide engineered drawings + ICC-approved spec docs to your municipality. Most FL ADU permits issue in 30–60 days.
03
Site prep + factory build
In parallel: site prep + utility connections on your lot, factory build of the BioBox ADU. ~60 days.
04
Delivery + assembly
Unit delivered to your lot. On-site assembly + utility hookup + final inspection in 5–10 days. CO issued. Tenants in.
Total: typically 90–120 days from contract to certificate of occupancy. Faster than any conventional ADU build.
Frequently asked
ADU questions.
Does FL SB 184 apply to my lot? +
If your lot is zoned single-family residential anywhere in Florida, yes. SB 184 preempts local zoning — every municipality in the state must permit at least one ADU per single-family lot by right as of July 1, 2025. There are no local opt-outs.
Can I rent it short-term (Airbnb)? +
SB 184 doesn't override local short-term rental ordinances. Many Florida cities do allow short-term rental of permitted ADUs, but rules vary. We'll help you understand the rules in your specific municipality during the discovery call.
What size lot do I need? +
Most Florida residential lots qualify. SB 184 caps the setback and parking requirements municipalities can impose. Our 320 sq ft Studio ADU fits on virtually any standard residential lot; the 600 sq ft Two-bedroom needs slightly more space. We confirm fit during discovery.
What's the rental income potential? +
FL median rent is $1,555/mo (FL Realtors 2024). A 1-BR BioBox ADU rents for $1,400–$2,200/mo depending on metro. At $1,800/mo, a $56K BioBox pays itself back in ~3 years. After that: pure cash flow + asset appreciation.
Do I need separate utilities? +
Depends on local code and your tenancy plan. Some municipalities allow ADUs on the primary property's water/electric meters; others require separate. Either is supported. Discuss with us during discovery for your specific situation.
Get started
Add an ADU to your lot.
Tell us your address and what you have in mind. We'll confirm SB 184 eligibility and put together a quote within 1 business day.