Colleagues collaborating on a laptop together.

What you need to build a tiny home in California?

To build a tiny house in California, you’ll need to ensure it meets the standards set by the California Building Standards Commission (CBSC). 

  • Tiny homes must have a ceiling height of at least 7 feet 6 inches
  • The must be at least one room with a gross floor area of 120 square feet or more. 
  • They must also have a net floor area of at least 70 square feet for all other living spaces. 

In addition, basic requirements for light, ventilation, plumbing, emergency exits, and smoke and carbon monoxide detectors must be met. If you’re really set on owning the tiniest house possible, you may go even smaller by building what’s known as an “accessory dwelling unit” (ADU). 

ADUs are typically much smaller than standard homes; you can build them on a property with a primary dwelling. However, there are strict rules and regulations governing the construction of ADUs, so be sure to do your research before you start building.

If you want to park your THOW in your backyard, you’ll need to get a permit from your local city or county. The permit process differs for every municipality, so check with your local government for specific requirements.

In general, you’ll need to meet certain setback requirements from property lines and make sure your THOW meets all California building codes. Once you have your permit, you can park your THOW on your property for up to 180 days.

If you’re looking for a more permanent solution, you can apply for a permit to build a tiny house on a foundation. This process is similar to building a regular home, so you’ll need to work with an architect or designer to create plans that meet all Local zoning requirements.

Contact THG for more information