Frequently Asked Questions

Find answers to common questions about ADUs and our construction services.

General ADU Information

Accessory dwelling units (ADUs) are housing units built on existing single or multifamily residential properties. They're also known as backyard homes, second dwelling units, guest houses, casitas, backyard cottages, mother-in-law units, and granny flats. There are many different types of ADUs, including both detached structures located in a back or side yard and attached additions to a primary home. Learn more about the options at our blog.

In 2020 and 2021, new laws were passed making it easier for Californians to build ADUs. Major changes to zoning regulations, permit requirements, and developmental standards went into effect, superseding previously restrictive local regulations. While zoning, regulations, and fees vary by municipality, the new state laws say that ADUs can be built on properties zoned for single-family and multifamily use.

If you live on a residential lot and have the required space and access, you can build one detached ADU and one junior ADU (a unit no more than 500 square feet located within the home). If you live on a multifamily lot, two up to eight detached ADUs are allowed on the property, depending on the number of existing units.

ADUs are a budget-friendly and minimally disruptive option for adding needed housing to existing neighborhoods. The new favorable legislation and increased awareness are likely driving popularity.

Backyard homes work with certain socioeconomic trends as well, such as allowing people to age in place or form multigenerational households to ease caregiving responsibilities and cost. And they can provide additional rental income in an uncertain economy. Many people also are looking to downsize and simplify their lives while still living in a neighborhood setting. Learn more about why ADUs are becoming so popular here.

Our average build with a standard model and site conditions takes about eleven months from start to finish. Plus, because your ADU is built offsite in a factory, working with Villa dramatically cuts down on the amount of time you have an active construction site on your property. Keep in mind that each project will vary depending on the location and scope of work.

Still have questions?

Our team is here to help you with any questions about ADUs and construction.