If you are currently planning to start a major kitchen remodeling project, and have purchased building materials in Denver, before you start be prepared that some types of tasks can be performed only based on a permit obtained from the local authorities. Permit requirements may be different for each county, but here are some task types that will most probably need to be authorized first in any state:

• Altering walls – if your project includes knocking down old walls or building new ones, you will probably need a permit for the job;
• New doors or windows – the installation of new walls and windows as well as the changing of the size of the openings can be done only based on permits;
• Electrical work – you will need an electrical permit to perform any altering, installing and repair work that involves the electric wiring and the outlets in the kitchen;
• Work performed on the plumbing, the ventilation and the gas supply system in the kitchen – if you want to move your sink to a different location, to repair or to modify your air conditioning system or you want to change the place of your gas stove, be prepared that you will need to get the work done based on approved blueprints and you will need a permit.