What happens if you skip the permit (and you needed one)
- A code enforcement officer complaint triggers a stop-work order and a $300–$500 fine for unpermitted work in Matthews, plus fees to pull a retroactive permit at double the original rate.
- Your homeowner's insurance may deny a claim if the deck collapse or injury occurs on unpermitted work — a $50,000+ liability exposure.
- Selling the house requires disclosure of unpermitted construction on the Residential Property & Owners' Association Disclosure Form; many buyers will demand removal or a $10,000–$25,000 price reduction.
- A bank or refinancer will flag the unpermitted deck during appraisal and may block the loan until removal or retroactive permits are obtained.
Matthews attached deck permits — the key details
Matthews requires a permit for any deck attached to a house, with no exceptions for size or height. This is rooted in North Carolina's adoption of the International Building Code (IBC) and International Residential Code (IRC), which treat attached decks as structural alterations subject to plan review. The key rule is IRC R507, which governs deck design, footing depth, and ledger-board attachment. In Matthews, the building department will ask you to submit a plot plan showing the deck's location relative to property lines and setback requirements (typically 5–10 feet from rear property line for residential zones), a framing plan with beam and post sizing, footing details with depth labeled, and ledger flashing details per IRC R507.9. The ledger flashing rule is non-negotiable: the ledger board must be flashed with L-shaped metal flashing that sheds water away from the rim joist — this prevents wood rot and is the most-cited deficiency in Matthews plan reviews. Footing depth in Matthews is either 12 inches (west of the Catawba River, Climate Zone 3A) or 18 inches (east toward the Coastal Plain, Climate Zone 4A) below grade, depending on your address; the building department maps this during intake.
Contact city hall, Matthews, NC
Phone: Search 'Matthews NC building permit phone' to confirm
Typical: Mon-Fri 8 AM - 5 PM (verify locally)