Home Addition Cost Florida 2026 | Per Sq Ft Pricing | Wilson Build

Second-story additions in Florida cost $150–$300 per square foot in 2026. Room additions run $200–$350/sqft; ADUs and master suites fall between $250–$450/sqft depending on finish level and site conditions. Wilson & Co Design Build serves St. Augustine, Jacksonville, Ponte Vedra, and Northeast Florida.

Understanding Your Options

Every project in Northeast Florida comes with its own set of local considerations — from St. Johns County permit requirements to coastal construction standards, hurricane wind zones, and flood elevation rules. Wilson & Co Design Build has worked through all of these requirements on projects throughout St. Augustine, Jacksonville, Ponte Vedra, Nocatee, Palm Coast, and Flagler Beach.

Our design-build approach means your architect and builder are the same team, working under one contract. This eliminates the coordination gaps between separate firms, keeps projects on schedule, and gives homeowners a single point of accountability from first design meeting to final inspection.

What to Expect

Planning a project in Northeast Florida typically involves:

• Design phase: Site evaluation, design drawings, and scope definition (2–4 weeks)
• Permitting: St. Johns County and surrounding jurisdictions typically require 3–6 weeks for residential permit review
• Construction: Timeline varies by project scope — most remodels run 4–12 weeks; additions and new construction take 3–6 months
• Final inspection: County inspections are required at multiple stages; your contractor manages all scheduling

Why Choose Design-Build

The design-build model saves time and reduces friction. Instead of hiring a designer, then bidding the project to multiple contractors, one team handles design, engineering coordination, permitting, and construction. This typically reduces overall project timelines by 15–25% and eliminates the communication breakdowns that cause cost overruns.

Wilson & Co Design Build holds Florida Certified General Contractor license CGC1532295. We are fully licensed and insured for residential construction throughout Northeast Florida.

Get a Free Estimate

Call (904) 792-6175 or visit our contact page to schedule a free on-site estimate. We serve St. Augustine, St. Johns County, Jacksonville, Ponte Vedra, Nocatee, Palm Coast, Flagler Beach, and surrounding Northeast Florida communities.