A homeowner's guide to in-ground pools in the Triangle

What an in-ground pool costs, which North Carolina licenses the builder and the electrician need, the state rules for the fence and gates around a pool, and what Raleigh, Durham, Cary and Chapel Hill ask for before you can swim. Every rule and price links to the page it came from.

What an in-ground pool costs

HomeGuide puts an in-ground pool at $80 to $250 per square foot installed, or $25,000 to $100,000 in total, with a national average of $62,500 (HomeGuide). These are national figures; we could not find a published local figure for the Triangle, so treat them as a starting point and get written quotes for your own yard.

HomeGuide's own text puts vinyl lower than its table, at $25,000 to $65,000 (HomeGuide), so expect vinyl quotes anywhere in that wider band. Upkeep runs about $80 to $150 a month, and removing an in-ground pool later costs $4,000 to $16,000 (HomeGuide).

HomeGuide's national figure for a pool permit is $100 to $300, and it says most contractors include permit fees in their price (HomeGuide). Triangle towns can charge more than that. Chapel Hill's posted schedule, for example, charges an administrative review fee of $500 on a project costing $50,001 to $500,000 and a building fee of $500 plus $4.50 for every $1,000 over $50,001 (Chapel Hill fees). On a $62,500 pool that works out to about $1,056 before zoning and electrical fees, and Orange County adds an 8% recyclable materials fee to every permit (Chapel Hill fees). That figure is our arithmetic from the posted schedule, not a Town quote. Ask each builder whether permit fees are in their price.

Licenses: who may build and wire a pool in North Carolina

North Carolina requires a licensed general contractor for any job costing $40,000 or more (G.S. 87-1, NC contractor board). Most in-ground pools cost more than that, going by the figures above, so in most cases the builder who signs your contract must hold a state license. The contractor board has a specialty classification for pool builders, S(Swimming Pools), and a Residential contractor license also covers pool work done as part of a home (NC contractor board classifications). Look the builder up by name or license number on the board's public license search before you sign.

The wiring is a separate license. State law bars anyone from the business of electrical contracting without a license from the State Board of Examiners of Electrical Contractors (G.S. 87, Art. 4), and Durham says the electrical permit for every pool must be pulled by a licensed electrician (Durham pool permits). Ask for the electrician's name and license number as well as the builder's.

The state rules every pool must meet

North Carolina's residential code has its own pool appendix, Appendix V. It is a North Carolina addition and is adopted as part of the code, so it is not optional (NC Residential Code, App. V). The code treats anything that holds water more than 24 inches deep as a swimming pool, including hot tubs and spas (NC Residential Code, App. V), and it requires in-ground pools to be built to the ANSI/NSPI-5 standard (NC Residential Code, App. V). The State Fire Marshal's office applied these barrier rules in a formal interpretation for Orange County in February 2025 (State Fire Marshal).

The barrier around the pool

• It must be at least 48 inches high, measured on the outside, with no more than 2 inches of gap at the bottom, or 4 inches over concrete (NC Residential Code, App. V).
• No opening may let a 4-inch ball pass through (NC Residential Code, App. V).
• Chain link mesh is limited to 2 1/4-inch squares unless slats bring the openings down to 1 3/4 inches, and lattice openings are limited to 1 3/4 inches (NC Residential Code, App. V).
• Nothing that could be climbed, such as permanent structures or equipment, may sit where it helps someone over the barrier (NC Residential Code, App. V). Cary turns that into a number: climbable structures must stay at least 36 inches from the barrier (Cary pool acknowledgment).

Gates and house doors

Gates people walk through must open outward, away from the pool, close by themselves and latch by themselves (NC Residential Code, App. V). Where a wall of the house is part of the barrier, the code requires one of three things: a powered safety cover meeting ASTM F1346, an alarm on every door that opens directly to the pool (listed to UL 2017, with its off switch at least 54 inches above the threshold), or another protection the inspector approves, such as self-closing, self-latching doors (NC Residential Code, App. V). Decide which one you want before the plans go in, because Durham wants the door alarms shown on the plan (Durham pool application).

Drains

Suction outlets, the drains that pull water to the pump, must meet the ANSI/APSP-7 standard, which the code uses for entrapment protection (NC Residential Code, App. V). Durham and Cary both require the installer's written verification of the entrapment protection before the final sign-off (Durham pool application, Cary pool guide).

Permits in Raleigh, Durham, Cary and Chapel Hill

Every one of the four towns requires permits for a pool. The details below are what each town publishes; call the town if your lot has an easement, a septic system, a stream buffer or a flood zone, because those change what you may build and where.

Raleigh

Raleigh requires permits and inspections for anything that can hold more than 24 inches of water. A pool needs building and electrical permits, plus a plumbing permit and a backflow device if it connects to the house's water supply (Raleigh pool permits). Talk to zoning staff about walls and fences before you apply, and have the recorded map of your property, which Raleigh uses to check for easements (Raleigh pool permits).

• Pools, decks, pool equipment and fences may not be built over a public sewer easement or a public or private drainage easement, and pools and decks may not go over a septic system or its repair area (Raleigh pool permits).
• The application needs the height of the barrier and a survey of the property. A project that adds 800 square feet or more of hard surface, or concentrates runoff, must also meet the City's lot grading plan rules (Raleigh pool permits).
• A homeowner acting as the contractor must file an Owner Exemption Affidavit, and a plan review fee is due before review starts (Raleigh pool permits). Raleigh adds a 4% technology surcharge to its development fees (Raleigh fee guide).

Durham

Durham's City-County Building & Safety department requires a building permit for every pool, and the application must meet zoning as well as the building code (Durham pool permits). Durham's zoning rules set setbacks, landscaping and how opaque a fence must be (Durham pool permits). The application form asks for:

• A site plan with setbacks to property lines and the lot's impervious surface limit, current total and the new total the pool adds (Durham pool application).
• Full details of the barrier, alarms, gates and any house walls that form part of the barrier (Durham pool application). The form still calls this Section AG105 of Appendix G, an older numbering; the same rules are in Appendix V today (NC Residential Code, App. V).
• Before you can use the pool: the installer's verification of the entrapment protection, a sealed as-built survey and final inspections. Using the pool before the Certificate of Compliance is issued is not authorized and could void the permit (Durham pool application).

Durham's stated goal is to review plans within 8 working days, 90% of the time (Durham pool application).

Cary

Cary's pool guide says the design rules are Appendix V plus Cary's own Land Development Ordinance (Cary pool guide). Cary also asks the owner to sign an acknowledgment form with the permit (Cary pool guide).

• The pool, its decking and its equipment must stay 5 feet from side and rear property lines and out of public easements (Cary pool guide).
• The barrier may run up to the property line but must sit entirely on your lot. A neighbor's fence does not count as your barrier (Cary pool guide).
• If your plat sets an impervious surface limit, new concrete decking counts against it, but pool water and slatted decking do not (Cary pool guide).
• A lot with a septic field needs Wake County's "Wastewater Accessory Structure" permit (Cary pool guide).
• Above-ground pool equipment must be screened on every side at full opacity, and its sound may not exceed 60 dB(A) where it affects a neighbor's home, generally measured at the property line (Cary pool guide).
• Inspections cover five areas, including the electrical work, the barrier and the entrapment protection (Cary pool guide).
• Temporary barriers must surround the excavation throughout construction, and no one may swim until every inspection is approved and the Certificate of Occupancy is issued (Cary pool acknowledgment).

Chapel Hill

Chapel Hill requires a residential permit for pools, hot tubs and spas, and it reviews every exterior project against the setback, height, impervious surface and land disturbance limits in its Land Use Ordinance (Chapel Hill permits). The zoning review fee is $25, $125 or $250, depending on how much new hard surface and disturbed ground the project adds; more than 1,500 square feet of new impervious surface puts it in the $250 tier (Chapel Hill fees). Building fees and an example are in the cost section above.

Triangle conditions that matter

What is buried in your yard

Call 811 before anyone digs. Utility locators have three business days to mark their lines, and 811 does not mark private lines: irrigation, invisible pet fences, power to outbuildings and lampposts, and the water and sewer lines between the meter and the house are yours to find (NC811). Ask the builder who is paying for a private locate.

Easements, septic and runoff

The three things that most often move or stop a pool here are the ones the towns list: public sewer and drainage easements (Raleigh pool permits), septic systems and their repair areas (Raleigh pool permits, Cary pool guide), and limits on how much hard surface a lot may have (Durham pool application, Chapel Hill permits). Check your plat and survey before you pay a design deposit.

Children and drowning

The barrier rules exist because of children. The Consumer Product Safety Commission reports that an average of 376 children under 15 drowned in pool- or spa-related incidents each year from 2021 to 2023, that nearly 80 percent were under five, and that over 70 percent of these deaths happened at a home (CPSC).

Hiring: questions to ask and red flags

Get at least three written estimates, and get a written contract that spells out the materials, the total price, warranties, start and finish dates and clean-up (NC Attorney General).

Questions to ask a pool builder

• What is your license number and classification with the contractor board?
• Who is the electrician, and what is their license number?
• Who applies for the permits, and is the permit fee included in your price?
• Which barrier option will you use where the house wall is part of the enclosure: a powered safety cover, door alarms, or self-closing doors?
• Will you provide the written entrapment protection verification and the as-built survey the town needs?
• Does your price include the permanent fence and gates, or only the temporary barrier during construction?

Red flags

• A builder who asks you to take out the permits and arrange the inspections yourself. The NC Department of Justice says this could be a sign the contractor isn't licensed (NC Attorney General).
• A quote that leaves out the barrier, the electrical work or the permits.
• Pressure to start swimming before the final inspection.

Your right to cancel a financed pool

If the seller finances the pool and you sign the agreement at your home after a sales visit there, North Carolina law treats it as a home-solicitation sale (G.S. 25A-38), and you may cancel until midnight of the third business day after you sign (G.S. 25A-39).