The landscape design invoice is a written form that outlines the costs associated with the design and architectural planning of a property. This invoice is reserved for the planning stages of landscaping and not the labor and materials used to actualize the property design. Whether for an individual looking to spruce up their personal property or a big company intent on making their facilities more attractive, a landscape designer will provide an invoice for all their time and the completed design plans. A designer generally doesn’t need any materials to create landscape plans, but the invoice will display how many hours the designer worked on the project and the total amount owed by the client. The client will be given a certain number of days (or weeks) to pay the designer once they have received the invoice.