First you have to consider the code in your area for set- backs. In most cases, there are different set- back requirements for the front and the side of the property. Another consideration is in what direction the sunroom will face and how this is affected during the seasons. Are there trees or shrubberies that obstruct the view? Architectural style that compliments the rest of the home should be carefully considered. Is the sunroom accessible from within the home and does it obstruct the view of other rooms? The help of a designer who knows to look out for these things will ensure a functional and beautiful addition.