designbuild-us coordinates two independent licensed firms across Florida. Whether your project needs structural engineering and sealed construction documents, or a complete ADU permitting package, you reach the right team through a single platform.
Member Firm
Stand-alone structural engineering and permit-ready construction documents across Florida — FBC 2023, ASCE 7-22, including HVHZ. You do not need to build with us to engage our engineering.
Member Firm
ADU construction documents and permitting. We produce the complete site-specific package that turns a Florida pre-approved ADU unit into a building permit — quickly and completely.
The permitting gap
A Florida state pre-approved ADU unit still requires a complete site-specific construction document package before any local jurisdiction will issue a building permit. That is the gap Design Build Florida fills.
Modular Building Selection Assistance
FL state approval review; site-specific code & AHJ conditions check
Site Plan
Survey, floor plan, existing structures, drainage, zoning & ordinance compliance
Elevations
Modular & existing structures; flood elevation and zoning compliance
Foundation Plan
Structural plans, wind load analysis & full anchoring system calculations
Energy Performance Calculations
R405 model and report for your specific location and orientation
MEP — Electrical & Plumbing
Site utility connections and integration with existing structures
MEP Add-On — Mechanical (HVAC)
HVAC review for local conditions and mechanical integration
Expedited Production
Reduced delivery schedule — timeline confirmed at project start
Two steps. No payment required. We will be in touch within 1 business day.
For ADU Manufacturers
Permitting is where buyers hesitate. We have produced foundation systems and construction documents for units by SteelCorp USA, Mesocore, and Plad. A professional permitting partner in your sales process keeps deals moving.
Discuss a partnershipFor Installers & GCs
Add a professional permitting sub-service to your install contracts. We handle the construction document package; you handle the build. Consistent turnaround. Statewide coverage.
Become a referral partnerOur Work
Selected projects by platform members across Florida.












Resources
What is a modular home? How does it differ from a manufactured home? What does ADU permitting actually involve?
Ready to start your permit package?
Two steps. No payment required at this stage.
Get in Touch
For ADU permit package requests, use the quote form in the Design Build Florida section above. For engineering, partnerships, or general inquiries, use this form.