Contractor licensing laws in California and Nevada (where I live and am most familiar with) allow an individual to build their own home. In Nevada, after completion, you have to live in the residence for at least 1 year prior to selling it unless you can prove that you're moving out of the state or local area, etc.
Per the California Residential Code detached accessory structure not exceeding 120 square feet does not require a building permit if there is no plumbing, electrical, and or mechanical equipment. Please note, Sheds and/or Structures under 120 square feet do require a Planning Permit.
In Nevada, permits are commonly required for all new home construction and for the installation of various major systems such as electrical hookups and water/sewer connections. The process varies by city or county, so it is best to consult your municipality for specific information on permit application procedures.
Building permits are required for all construction not specifically exempted (see exempted work list listed on page 4). This includes houses, garages, most decks, commercial projects, installation of propane appliances, grading, projects requiring framing, electrical, mechanical, plumbing, etc.
Nevada Contractor License Requirements The exam is open book, so you'll be using the Construction Business and Law Manual, for Nevada. We will help you with your Nevada contractor license exam prep. Additionally, there is a trade examination specific to the classification of license that you're applying for.
Contractors, including subcontractors and specialty contractors must be licensed before submitting bids.
How to Get a Nevada Contractor License Cover Pre-licensing Requirements. Obtain a Nevada Business ID Application. Choose a Nevada Contractor License Classification. Complete Your License Application. Pass a License Examination, Submit a Surety Bond and Insurance. Nevada Contractor License Bond Requirement.