The time that it takes to develop a new website — and thus the cost to do so — depends upon the complexity of the website, including:

• what features the website has (i.e. all the functionality it provides to visitors)
• the number of pages
• the amount of text and images
• the size of the navigation menu
• any multimedia elements
• any e-commerce capabilities (such as online products and a shopping cart)
• the ambiguity of the project, and thus the amount of time required to clarify exactly what is desired