Do you need a permit for a pool in Wake County?
Short answer: almost certainly yes. In-ground pools need a permit, and most above-ground pools deep enough to swim in do too, plus an electrical permit for the pump, and a code-compliant safety barrier. Here's what Wake County and Triangle cities generally require.
In-ground vs. above-ground
An in-ground pool is site-built construction, with excavation, structure, plumbing and electrical, and it needs a building permit, full stop. An above-ground pool is where people assume they're in the clear, and often aren't. Once a pool holds water deep enough to swim in, commonly around 24 inches, the code treats it as a pool regardless of whether the walls sit on top of the ground. That typically means a permit. A shallow inflatable or kiddie pool is generally exempt; confirm the exact depth threshold with the authority.
The barrier / fence requirement is not optional
North Carolina's code requires a barrier around a residential pool. That's typically a fence at least 48 inches (4 feet) high, with any gate self-closing and self-latching and the latch out of a small child's easy reach. There are extra rules for how far apart fence pickets can be and for using a house wall as one side of the barrier. This requirement exists to stop a toddler from reaching the water unsupervised, and it's a core part of the inspection. Plan the fence into the project and the budget from day one, not as an afterthought.
Electrical and equipment
Pumps, heaters and pool equipment must be bonded and grounded correctly. This is a genuine electrocution-risk item, which is why it's inspected under an electrical permit. It applies to above-ground pools with a wired pump too, not just in-ground builds. Underwater and area lighting has its own requirements.
Setbacks, easements and septic
A pool has to sit a minimum distance from property lines, and it can't go over a recorded easement or too close to a septic system or well. That's a real constraint on a lot of Wake County lots outside city sewer. Call 811 before any excavation so utilities are marked. If you're in an HOA, its approval is separate from the permit.
Where to apply / confirm
Pools inside a city are permitted by that city; unincorporated Wake County pools go through the county. Because a pool bundles building, electrical, and a barrier inspection, it's worth calling the office first to confirm exactly which permits your specific pool needs before you buy anything.
A reputable pool builder handles the permits, the barrier and the electrical bonding as part of the job, and can point you to a fence installer for the code-required barrier. Compare license-checked businesses on MyTriangleServices.