Land Due Diligence in Charleston: What to Verify Before the Period Closes

8 min read

Due diligence fails when it runs in the wrong order. Owners spend on design and survey while the item that would have killed the deal — access, utility capacity, wetlands — goes unverified until week six.

Run the deal-killers first

In the first ten days, answer only the questions that can end the deal:

**Zoning and use.** Is the intended use permitted by right, or does it require a rezoning, special exception, or variance?
**Access.** Is there legal, permitted access to a public road? Encroachment permits from the state DOT can control your schedule.
**Wetlands and critical area.** Is there a delineation? Where is the critical line, and what buffer applies?
**Utility capacity.** Not just proximity — capacity. Sewer capacity and lift station availability have stopped more Lowcountry projects than any other utility issue.
**Flood zone and elevation.** What zone, what base flood elevation, and what does compliance cost in fill or structure?

Then verify the physical site

Boundary and topographic survey
Geotechnical borings sufficient for the intended structure
Phase I environmental, and Phase II if the Phase I flags anything
Tree survey where grand tree protection applies
Existing easements, both recorded and visible on the ground

Then verify the legal and financial picture

Title commitment reviewed by counsel, with every exception explained
Restrictive covenants, HOA or POA controls, architectural review requirements
Existing leases, licenses, or occupancy
Tax status, assessments, and any pending special assessments
Impact, tap, and capacity fees quantified with the actual utility provider

Talk to the jurisdiction early

A pre-application meeting with planning and with the utility is free and frequently changes the plan. Bring a concept, not a full design. Ask directly:

What review path does this project follow?
What is realistic review duration right now?
What have you required on comparable nearby projects?
What is the most common reason projects like this get sent back?

Write everything into a decision memo

At the end of due diligence you should be able to state, on one page:

What the site can support, in units or square feet
What the entitlement path and duration is
What extraordinary site costs exist and their range
What conditions must be satisfied to proceed
What the walk-away triggers are

If you cannot write that page, diligence is not finished regardless of how many reports you have collected.

Extension terms matter more than people think

Negotiate diligence extension rights up front, tied to items outside your control such as jurisdiction response time. Extensions are far cheaper to obtain before a contract is signed than in week eight when leverage has shifted.

Common misses in the Lowcountry

Assuming a paper road provides legal access
Treating a wetlands map as a delineation
Missing that stormwater detention consumes developable land
Underestimating fill volume and haul cost to reach required elevation
Ignoring grand tree protection until the site plan is already drawn

Next step

Order the deal-killer items in week one and spend nothing else until they clear. That single sequencing change is the difference between releasing a bad site for a few thousand dollars and releasing it for fifty.