Two permit counters in one county seat
Lillington is the Harnett County seat, so the town and the county both keep offices here. The Town's Planning and Inspections department enforces the NC State Building Code inside the corporate limits and the extraterritorial jurisdiction, the ETJ. Harnett County Central Permitting, also in Lillington, handles septic, E911 addressing, the fire marshal and its own inspections.
Which office owns your floor depends on where the parcel sits, and the mailbox won't tell you. Read the Town's inspections page and the county's Central Permitting page, then phone whichever one you reach first and ask it to confirm your parcel in writing. If you're outside both the limits and the ETJ, ask Central Permitting who covers you. Our permits guide shows how the counties around Fayetteville split this work.
What the Town's permit list says about garage and shed floors
The Town's Residential Construction Permit covers new houses, additions, renovations, attached and detached garages, storage buildings, decks and screened porches. Driveways, patios and bare slabs aren't named on that list. A garage or shop floor is part of a building, so plan on the permit. A loose pad with nothing on it is the Town's call, and the FAQ on its permit page says to contact the Planning Technician when you're unsure.
Do that with your address and a sketch before anyone books a truck. Electrical, mechanical and plumbing work gets a separate trade permit, which matters the day your new garage picks up a subpanel or a floor drain. The Town also asks for next-day inspection requests by 2 PM. A pour that follows an inspection needs that request in by 2 PM the day before, so the concrete order waits on the inspector, never the other way around.
Floors for sheds, shops and garages are priced by the square foot, $7 to $12 per sq ft on a reinforced pour. These sizes come straight from that range, and smaller shed pads hit a job minimum.
| Project | Size | Per sq ft | What it comes to |
|---|---|---|---|
| Lawn tractor and tool shed pad | 12x20 (240 sq ft) | $7 to $12 | $1,680 to $2,880 |
| Workshop floor | 20x20 (400 sq ft) | $7 to $12 | $2,800 to $4,800 |
| Two-car garage add-on | 24x24 (576 sq ft) | $7 to $12 | $4,032 to $6,912 |
| Garage plus a workbench bay | 24x30 (720 sq ft) | $7 to $12 | $5,040 to $8,640 |
Stone base on filled ground, thickened edges, a longer apron out to the street and tear-out of an old pad change the total. Every price is confirmed in a free written estimate after we see the site.




