Samples of requests for approval. Use the following samples to guide you when writing a request for approval letter.Fill out the form below to get instant access to our approval request form templates. To save an editable copy, follow these simple steps:. We will make every attempt to have the zoning verification letter completed within 5 business days. The applicant will be notified upon completion. By a request letter template, it is designed to request the recipient to do something stated in the letter. Looking for local rules and forms? The complete Small Commercial process — permitting, plan submittal, and plan review — can be accomplished from your computer. Letter of Intent is a written agreement between the City of Charlotte.