How Long Permitting Actually Takes in Charleston, Mount Pleasant, and Summerville

7 min read

Ask three people how long permitting takes and you will get three numbers, all of them wrong, because permitting is not one duration. It is a sequence of reviews, each with its own queue, each capable of sending you back to the start of the next one.

The useful question is not "how long does a permit take." It is "how many review cycles will this project require, and what triggers another one."

The reviews that stack up

Depending on scope and location, a Lowcountry project may pass through:

Zoning or planning review, including board or commission hearings for rezonings, special exceptions, and variances.
Design review, which in historic districts and many planned developments is its own hearing calendar.
Site plan and civil review covering grading, stormwater, utilities, and access.
State and federal reviews for critical area, wetlands, land disturbance, and encroachment permits.
Utility provider review and capacity confirmation.
Building plan review, followed by trade permits.
Fire marshal review.

These are partly sequential. A change forced by one review often requires resubmittal to another.

Why resubmittals, not queues, drive the schedule

A first review cycle is usually a predictable number of weeks. What is not predictable is how many cycles you need. Each incomplete or inconsistent submittal buys you another full cycle — and cycles are additive, not overlapping.

The most common causes of extra cycles are entirely within the owner team control:

Drawings that are inconsistent between disciplines.
Missing reports, calculations, or certifications the checklist requires.
Design decisions made after submittal, which force a revision package.
Responding to comments narrowly instead of resolving the underlying issue, which produces the same comment again.

Hearings are calendar events, not durations

Anything requiring a board or commission is governed by a submittal deadline and a meeting date. Miss the deadline by a day and you wait for the next cycle, which is typically a month. Two hearings in sequence with one deferral between them can move a schedule by a full quarter with zero review time consumed.

Build the hearing calendar into your project schedule as fixed dates and work backward from the submittal deadlines.

What varies by jurisdiction

Different Lowcountry jurisdictions differ less in raw review speed than in the number of gates and the strictness of completeness checks. What to establish for each project:

Which approvals require a public hearing, and on what calendar.
Whether the jurisdiction runs concurrent or sequential review.
Whether a pre-application meeting is available — it is almost always worth taking.
Who signs off last, and whether that office has its own queue.
Whether third-party or expedited review is permitted.

Building a permit calendar you can defend

List every approval required, by agency, with its submittal checklist.
Attach real hearing dates and submittal deadlines to each one.
Assume more than one review cycle where the scope is complex, and say so out loud in the schedule.
Identify the dependencies: what design decision must be final before each submittal.
Assign a single owner for each submittal package and each comment response.
Track carrying cost per month against the calendar so delay has a visible price.

The three habits that shorten permitting

Freeze the design decisions a submittal depends on before you submit, not after.
Take every pre-application meeting offered and bring specific questions, not a general concept.
Answer comments completely and in one package, with a written response matrix showing where each comment was addressed.

The takeaway

Permit duration is mostly a function of submittal quality and hearing calendars, both of which you influence. Owners who plan for review cycles instead of hoping for one clean pass produce schedules that hold — and stop paying carrying cost for avoidable resubmittals.