The shape of your lot may affect the size and positioning of your deck. Assess the situation. Do you know where your property lines exist? If your yard has a fence this may be very easy to determine. See if you can find a copy of your property survey. These are usually provided by your realtors with the purchase of your home. If you do not have one you may want to check with the building inspections department in your city.

A property survey is a technical map of your property that provides some critical information that will help you become aware of any legal boundaries for additions. Property setback requirements will vary from city to city and can be site specific, if in doubt you may need to consult the building inspections department. Utility and drainage easements can also be present without your knowledge; they will be listed on your property survey as well. If your property abuts lakeshore, rivers, wetlands etc. you may have to adhere to more stringent rules. Irregular and corner lots can offer a unique set of problems. Streets usually require a greater setback than a typical side lot.

If you appear to have enough space, you can move forward with your design preparation. If not, you may need to rethink the situation. If you have your heart set on building into a conflicting zone you may be able to apply for a variance to allow you special use privileges. You will need to plead your case before the city council, this usually requires some time and money to accomplish and there are no guarantees.