Yes, most solar panel installations require permits. Whether you're installing rooftop panels or a ground-mounted system, local building departments typically require permits to ensure safety, code compliance, and proper grid connection. Most states provide legal protections for solar installations while allowing reasonable restrictions, and conflicts can be. Luckily, many states have passed solar access laws that bar HOAs from banning solar panels. What are solar access laws? Solar access laws can take different forms but include any law that protects your access to installing solar.