Column | Your backyard could be a home. Here’s how to build one.

The Washington Post has published guidance on constructing accessory dwelling units (ADUs) in residential backyards, highlighting a growing trend that holds particular significance for California property owners.

ADUs, also known as granny flats or in-law units, have emerged as a popular solution to address housing shortages while providing homeowners with additional income opportunities and flexible living arrangements for family members.

California has been at the forefront of ADU reform, implementing legislation that streamlines the approval process and reduces regulatory barriers for homeowners seeking to build these secondary units.

State laws now require local jurisdictions to approve ADU applications that meet basic safety and zoning requirements, eliminating many of the discretionary review processes that previously delayed or prevented construction.

The units can serve multiple purposes, from housing aging parents to generating rental income or providing workspace for remote employees.

For California developers and homeowners, the expansion of ADU construction represents both an opportunity and a shift in residential development patterns.

Property values may increase with the addition of these units, while neighborhoods experience gentle densification without requiring large-scale redevelopment projects.

The trend reflects broader housing policy efforts to increase supply through creative use of existing residential lots, particularly as traditional single-family zoning restrictions face scrutiny across the state.