What does accessory dwelling unit mean — Chico, CA
Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
An accessory dwelling unit is a secondary, self-contained living space located on the same lot as a primary single-family home. It includes its own kitchen, bathroom, and sleeping area. You might ask this if you are exploring ways to increase your property value or provide housing for relatives. These units can be attached, detached, or converted from existing interior spaces like garages or attics. Exact pricing confirmed free on the call.
Frequently asked in Chico
What exactly is an accessory dwelling unit?
An accessory dwelling unit, or ADU, is a second, smaller living space on a single-family home lot in Chico. It's like a separate apartment, guest house, or casita. These units can be attached to your main house or detached in your backyard. They have their own entrance, kitchen, and bathroom. ADUs are a great way to add living space without the hassle of moving.
Are there any grants for ADUs in Chico?
What's the difference between an ADU and a guest house?
In Chico, the terms are often used interchangeably, but an ADU typically meets specific legal definitions for permanent occupancy. A true ADU is designed as a self-contained dwelling. This means it has its own kitchen and bathroom. Guest houses might have fewer requirements and are often for temporary stays. We'll help you understand the regulations for your specific situation.
Can I get a pre-built ADU in Chico?
How much does an ADU cost in Chico?
How do I find an ADU contractor near me in Chico?
What goes into building an ADU in Chico?
Also serving nearby: Redding · Roseville · Sacramento · Elk Grove · Vacaville
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Chico — population 101,301; about 2,934 residents per square mile across 34.5 sq mi. ZIP codes covered include 95926, 95927, 95928, 95929, 95973, 95976.
Neighborhoods served in Chico: Barrio Neighborhood, Chapman, The Five Point Neighborhood, The South Campus Neighborhood, The North Campus Neighborhood, Esplanade — and every surrounding area.
Areas we serve
Browse by state, then city.