
Open your business faster with a design-build team that delivers accurate budgets, realistic schedules, and quality construction from concept through completion. As a trusted commercial general contractors serving St. Augustine, St. Johns County, and Jacksonville, we streamline decisions, reduce delays, and keep your project moving forward.
Tenant Build-outs & Improvements
for Retail, Medical & Professional Spaces, Restaurants, Cafés, Salons & More
Transform your empty or existing commercial suites into fully functional, brand‑ready spaces. No headaches. Whether you’re opening a new franchise, expanding your medical practice, or preparing a retail location, our team ensures your build‑out meets all operational, aesthetic, and code requirements.
Types of Tenant Build‑Outs We Deliver:
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Retail suites and franchise locations
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Restaurants, cafés, and food service spaces
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Medical and dental offices
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Salons, spas, and wellness centers
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Professional and administrative offices
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Commercial interior renovations and reconfigurations

A Streamlined Process That Gets Your Space Ready for Business
You get coordinated retail tenant improvements, white‑box conversions, and polished, branded interior build‑outs that support efficient openings. Predictable timelines, clear pricing, and hands‑on project coordination ensure every space is delivered functional, visually refined, and ready for immediate occupancy
Our Process Includes:
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Design-Build consultation
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Pre‑construction planning and budgeting
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Demolition and space preparation
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MEP coordination (mechanical, electrical, plumbing)
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Framing, drywall, and interior construction
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Flooring, finishes, and fixtures
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Final inspections and turnover
Built to Code. Built to Brand. Built for Your Operations

Every tenant build‑out is completed with strict adherence to Florida building codes, ADA requirements, and industry standards. We coordinate inspections, manage subcontractors, and ensure every detail—from plumbing rough‑ins to final finishes—is executed with precision.
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"Marvel handled my Medical office, BUILDOUT, in under four months And I couldn’t be happier with the level of Service, and professionalism provided by Marvel Construction group. The best part I like this. I was able to call Adam directly when any problems came about And he always answered to fix them. Highly recommend this company for your commercial general contracting needs."
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JJ, Pediatric Dentistry, Smile Society
Fast Turnarounds, Clear Communication & Local Expertise

We understand the urgency of opening your doors. Our team provides reliable timelines, transparent budgeting, and proactive communication throughout the build. With more than 12 years of experience in Northeast Florida, we anticipate challenges early and keep your project moving forward.
Frequently Asked Questions
How do I choose the right commercial construction contractor in St. Augustine, St. Johns County or Jacksonville, FL?
Choose a commercial construction contractor with local permitting experience, transparent budgeting, strong references, and a proven record of delivering retail and tenant build-outs. Local experience matters because every jurisdiction has different review processes and code requirements. At Marvel Construction Group, we coordinate directly with St. Johns County Building Services, the City of Jacksonville (COJ), design professionals, and permitting agencies to keep your project moving efficiently from planning through occupancy while maintaining budget accuracy and schedule certainty.
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How does a design-build contractor help reduce delays and control construction costs?​
Design-build reduces delays because your architect, engineers, and contractor work as one team from the beginning. This approach helps identify budget, constructability, and scheduling issues before they become costly change orders. Marvel Construction Group provides preconstruction budgeting, value engineering, design coordination, and schedule management throughout the process, helping you make informed decisions faster and keeping your retail or interior construction project on track.
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Do I need permits for a retail tenant build-out in St. Johns County or Jacksonville, FL?
Most retail tenant build-outs require permits before construction begins, especially when electrical, plumbing, mechanical, fire protection, accessibility, or structural work is involved. Permitting requirements vary between St. Johns County and Jacksonville, FL. Marvel Construction Group manages the permitting process, coordinates plan reviews, and helps ensure compliance with the current Florida Building Code and applicable life-safety requirements so you can avoid unnecessary delays and inspection issues.
Tenant Build‑Outs
Across Northeast Florida
We proudly support tenants and property owners in Jacksonville. When clients need to find commercial building contractors Jacksonville who deliver brand-ready spaces on predictable timelines, they choose Marvel.
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St. Augustine
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St. Johns County
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Nocatee
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Ponte Vedra
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Jacksonville
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Jacksonville Beach
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Surrounding Northeast Florida communities











