Do I Need a Permit?
Straight answers for the most common projects, based on the model residential code (IRC R105.2) that most states adopt — with the local exceptions that matter, and links to your own city or county’s requirements.
Do I Need a Permit to Build a Shed?
Usually not for a small one — under the model residential code (IRC R105.2), a one-story detached shed of 200 square feet or less does not need a buil…
Do I Need a Permit to Build a Fence?
Usually not — the model code (IRC R105.2) exempts fences up to 7 feet tall from building permits. Taller fences, retaining-wall fences, and masonry wa…
Do I Need a Permit to Build a Deck?
For most decks, yes. The model code (IRC R105.2) only exempts decks that are 200 sq ft or less, under 30 inches above grade, not attached to the house…
Do I Need a Permit for a Retaining Wall?
Under 4 feet (measured from the bottom of the footing) with nothing pushing on it from above — usually no permit. At 4 feet or taller, or any height s…
Do I Need a Permit to Replace a Water Heater?
Yes, almost everywhere. Replacing a water heater is plumbing (and often gas or electrical) work, and nearly every US jurisdiction requires a permit an…
Do I Need a Permit to Replace My Roof?
Almost always for a full replacement. Most jurisdictions require a permit for reroofing, especially tear-offs. Small repairs (a bundle or two of shing…
Do I Need a Permit to Install Solar Panels?
Yes — rooftop solar always requires permits: an electrical permit at minimum, usually a building/structural permit too, plus utility interconnection a…
Do I Need a Permit to Remodel a Bathroom?
Cosmetic-only work (paint, tile, vanity, flooring) needs no permit. The moment you move or add plumbing, touch wiring beyond a fixture swap, or remove…
Rules vary by jurisdiction. Find your city or county’s adopted codes, thresholds, and building department on the state-by-state permit pages.