In most cases, you will need a permit to build a covered patio. Permit requirements vary by location, but generally, any structure attached to your home or that alters its footprint requires approval from local authorities.
It's crucial to check with your local building department or zoning office before starting construction. They can provide information on specific requirements, such as setbacks, height restrictions, and necessary inspections. Failing to obtain proper permits can result in fines, forced removal of the structure, or complications when selling your home.