What Decides How Long a Custom Home Takes to Build in Northeast Florida

What actually sets a custom home's schedule in St. Augustine, Jacksonville, and the surrounding coastal counties: design decisions, permit review, the site itself, and hurricane season.

There is no single answer, because two things decide it before a shovel ever moves: how long the design and permitting phase takes, which depends on your decisions and the county’s review, and how long construction itself takes, which depends on the site, the size of the house, and what season it lands in. On a typical Northeast Florida custom build, the design-and-permitting phase and the construction phase are often close in length, and the first one is the part most homeowners forget to plan for.

Why does permitting take as long as building does?

Because a custom home permit application here isn’t a single form, it’s a package the county has to review against multiple codes before anyone can dig a footer. In most cases St. Johns County’s building department will accept a building permit application only after it has issued a Clearance Sheet, and plan submittals are reviewed for compliance with the Florida Building Code, the county’s Land Development Code, and any other applicable law before that review clears. For a permitted project over $5,000, which a new custom home always is, a recorded Notice of Commencement is also required before the first inspection can happen. None of that runs in parallel with design; it starts once construction documents are finished, which means a slow design phase pushes the whole schedule back twice, once for the drawings and again for the review that only starts after they’re done.

What does the site itself add to the schedule?

On a lot near the marsh, the river, or the coast, more than most homeowners expect going in. Custom home planning in St. Augustine starts with a survey and a site review precisely because St. Johns County sets minimum floor elevations relative to base flood elevation on much of its buildable land, and that number can change the foundation type, the fill required, and how many steps lead to the front door. A lot that reads as flat on paper can still need significant engineering once a surveyor puts real numbers on it, and that engineering has to happen before construction documents are finished, not after. A straightforward inland lot with stable soil and no flood-zone complications moves through this stage faster than a coastal or river-adjacent one almost every time.

Does hurricane season actually change the schedule?

Yes, and not just for the obvious reason of a storm passing through. June through November brings the rain patterns and named-storm risk that shape how Northeast Florida contractors sequence a build, and getting a house dried in, meaning the roof and exterior envelope are weathertight, before that window opens protects both the schedule and the work already done. A foundation poured in July sits through months of afternoon thunderstorms before framing catches up, and a frame that’s still open when a named storm approaches means securing the site and losing days that a spring start wouldn’t have lost. None of this makes a hurricane-season start impossible. It does mean a build that breaks ground in early summer usually needs more schedule cushion around framing and dry-in than one that breaks ground in fall or winter.

What part of the schedule is actually in the homeowner’s control?

The design phase, almost entirely. A custom build runs through a fairly fixed sequence once construction starts: site work, foundation, framing, dry-in, rough mechanical and electrical, inspections at each stage, insulation, drywall, finishes, and a final walkthrough. That sequence doesn’t compress much no matter how decisive the owner is. What does compress or expand is everything before it: how quickly floor plan decisions get made, how many rounds of revision the design goes through, and how far in advance selections like windows, cabinetry, and mechanical systems get locked instead of decided mid-construction. A homeowner who studies the lot, sets a clear program for the house, and makes selection decisions early is not shortening the construction phase, but they are shortening the months that happen before it, which is frequently the larger of the two.

Does financing affect when construction can actually start?

It can, because most custom builds run on a construction loan that disburses in draws tied to completed phases rather than a lump sum up front, and the lender’s own approval and draw-schedule setup happens in parallel with, not after, the county’s permit review. Construction loan options for a custom home covers how that financing structure works and what it requires before the first draw. A construction loan that isn’t lined up by the time permits clear becomes the next bottleneck, even though the house itself is ready to start.

What actually determines whether a project runs long?

Most schedule slippage on a custom build traces back to a decision made late, not a phase that ran long on its own. A window package changed after the structural drawings are done means re-engineering headers that were already sized. A finish selection made mid-framing instead of before it means the crew waits, or worse, builds to a placeholder that gets torn out. Keeping design and construction under one team, which is how Wilson & Co Design Build runs a custom home project across St. Augustine, Jacksonville, Ponte Vedra, Nocatee, Palm Coast, and the rest of Northeast Florida, means the people pricing the house are the same people who will build it, so a conflict between a design detail and a structural or code requirement gets caught and resolved once, by the team that has to build the fix, rather than relayed back and forth between a separate architect and a separate contractor.

Where to start if timeline is the real question

Ask for a schedule broken into its two real parts: design-and-permitting, and construction. Ask what in the current plan could compress the first one, since that’s almost always the phase with more room to move. And if the lot sits anywhere near the marsh, a river, or the coast, ask for the site and flood-elevation review before the design gets far, because that answer changes the foundation and the schedule together, not separately. Wilson & Co’s custom home design-build work covers both halves of that schedule as one process, from the first site walkthrough through the final inspection.

Call (904) 792-6175 or use the project form to start with a walkthrough of your lot and a realistic two-part schedule for it.