Property Owner Resource Guides
Helpful information about ADU legalization, permit research, code violations, as-built plans, and more — for California property owners.
A step-by-step overview of what the ADU legalization process generally involves in California.
Read guide →General guidance on what legalizing an unpermitted garage conversion typically involves in California.
Read guide →An overview of what legalizing an unpermitted room addition or home expansion generally involves.
Read guide →What California property owners need to know about legalizing an unpermitted bathroom addition.
Read guide →A guide to understanding what legalizing an unpermitted bedroom addition typically involves in California.
Read guide →A guide to researching historical building permit records for California residential properties.
Read guide →Steps to verify whether an ADU or accessory structure on a California property has the required permits.
Read guide →An overview of the types of property records useful for understanding a California property's permit and improvement history.
Read guide →An explanation of as-built plans, what they document, and why they are commonly required for legalization projects.
Read guide →An explanation of retroactive building permits and how they work for unpermitted residential structures in California.
Read guide →An overview of the typical sequence of events after a California property owner receives a code violation notice.
Read guide →Understanding what a stop-work notice means and what California property owners typically need to do in response.
Read guide →Understanding how unpermitted work affects property sales in California and what options exist for sellers.
Read guide →An overview of how unpermitted ADUs affect refinancing in California and what options property owners have.
Read guide →Understanding insurance considerations for unpermitted ADUs and other accessory structures in California.
Read guide →A realistic explanation of what 'grandfathering' means for unpermitted California structures — and common misconceptions.
Read guide →Understanding the factors that determine whether a garage conversion can be legalized in California.
Read guide →What California property owners should know about legalizing an unpermitted guest house, casita, or backyard cottage.
Read guide →An overview of what can happen when a California building department becomes aware of unpermitted work on a property.
Read guide →How unpermitted structures and improvements can affect the market value of California residential properties.
Read guide →Understanding the ways unpermitted work can complicate or affect a California home sale.
Read guide →Realistic guidance on timelines for the California legalization process and the factors that affect how long it takes.
Read guide →An overview of the documents commonly needed when pursuing legalization for an unpermitted California structure.
Read guide →Understanding when California building departments require plans stamped by a licensed architect.
Read guide →Understanding when structural calculations or other engineering documentation may be required for a legalization project.
Read guide →Understanding when a licensed contractor may be needed as part of a California legalization project.
Read guide →Understanding the factors most likely to make a California legalization project more challenging or time-consuming.
Read guide →Understanding the key differences between legalizing an existing unpermitted ADU and getting a permit for new ADU construction.
Read guide →A useful checklist for property owners conducting permit research before or during a legalization project.
Read guide →A step-by-step checklist to help California property owners respond to a building code violation notice.
Read guide →A checklist to help California property owners prepare the information needed to start a legalization project.
Read guide →