MARVEL CONSTRUCTION GROUP LLC
Design-Build Interiors • Licensed GC • Predictable Scheduling
Protect Your Lease Deals Across Northeast Florida: Accurate budget guidance and proven 10-13 week retail tenant build-outs help eliminate unexpected costs, strengthen lease negotiations, and get businesses open sooner. As an experienced commercial building general contractor in Jacksonville and St. Johns County, construction manager, and tenant improvement partner, Marvel delivers the certainty owners, brokers, and tenants need to move projects forward with confidence.
Retail Tenant Build‑Out Specialists & Ground-up Construction
We manage every phase of the commercial construction process—from site development and permitting to interior finishes and final delivery. Whether you’re building a new retail center or preparing a space for a new tenant, our team ensures your project meets brand standards, code requirements, and your timeline.
explore our services
Construction Management That Keeps Your Project Moving Forward
Our project management approach emphasizes scheduling, budgeting, subcontractor coordination, and clear communication. We anticipate challenges early, eliminate delays, and maintain full transparency so your project stays on track and within budget.
see how we manage projects


High-Quality Construction Backed by Local Expertise
With more than 12 years of experience and strong relationships with top subcontractors, we deliver consistent quality from start to finish. Every project is built to meet local building codes, industry standards, and the long‑term needs of your business.
​
view our recent projects
​
"Adam with Marvel was amazing! We had a tight budget and a tight timeline and he still delivered an amazing product BEFORE the deadline. He is very professional and has great communication skills and stays on top of his subs which is exactly what you need in a contractor. I highly recommend!!"
​​​​
- Lauren Schute, DPT, founder of PhysWell Rehabilitation read her story
Smart Budgeting
That Protects Your Investment
We provide accurate budget development, detailed cost monitoring, and value‑engineering opportunities that reduce expenses without compromising quality. Our goal is to maximize long‑term value for every client and every project.
start with a detailed estimate
Frequently Asked Questions
Does Florida’s weather or local building code slow down commercial tenant build-outs?
It can if you don't plan for it. Coastal hurricane codes mean strict municipal inspection checkpoints, and high humidity can delay drywall, flooring, and paint. To prevent delays, we submit for permits immediately during design and run heavy-duty drying equipment inside the space before finishing work starts.
What is the typical project timeline from signed lease → permit submission → construction start → Certificate of Occupancy for a 2,000–6,000 sq ft build-out in this market?
For a 2,000–6,000 sq ft build-out, timelines typically run from several weeks to a few months after the lease is signed. We coordinate permitting efficiently and maintain predictable schedules through hands-on project management for timely Certificates of Occupancy.
What is a realistic all-in cost per square foot (hard costs only) for a mid-range medical or retail interior build-out in Northeast Florida right now, including typical MEP upgrades?
Hard costs for mid-range medical or retail interior build-outs in Northeast Florida vary by scope and MEP needs. Marvel delivers transparent, detailed estimates with value-engineering options so you receive clear pricing and maximum value.


489 Goldenrod Dr.
St. Augustine, FL 32092
​
Email: Adam@Marvelconstructiongroup.com
Tel: 904-599-8950
​





