This question, in and of its self is relatively impossible to answer. It is is way too broad, and ignores a lot of the under the hood features that professional web designers and digital agencies bring to the table on website design projects. I can, however, give you you some guidance on
web design costs that will help to fill in the blanks and make the process of choosing a marketing agency or web designer much easier. Keep in mind that the process isn't cheap, and there is a lot of thought that goes into how your prospective visitors will use the web design, and how to keep them coming back until they convert into customers and brand evangelists.