Biggs is classic Sacramento Valley farm country — a small rice-and-orchard town strung along State Route 99 between Oroville and Gridley. The housing stock is modest and practical: postwar ranch houses, older bungalows, and the occasional farmhouse on the town’s traditional grid, most sitting on lots that feel generous by city standards. Detached garages, shop buildings, and deep backyards are common, which is exactly the raw material a good ADU project needs. For most Biggs homeowners, the detached backyard cottage is the natural fit — there’s simply room to build it right.
Detached ADUs of up to 1,200 square feet are approvable by right under California state law, and on a typical Biggs lot that size of unit gets real separation from the main house — its own entrance, its own outdoor space, and privacy for both households. Garage conversions are the other strong path here; many Biggs homes have detached garages that convert cleanly into one-bedroom homes with less site work than new construction. Attached additions work well for multigenerational setups where the family wants a shared wall and a connecting door rather than a fully separate building.
Junior ADUs — compact suites of up to 500 square feet carved from existing living space — are the lightest-touch option, well suited to housing an aging parent or giving an adult child a private start. Whatever the configuration, we design every Biggs ADU to the current California building and energy codes, with Title 24 compliance handled in-house. That means the unit appraises as real living area and rents or houses family without the headaches of unpermitted work.
ADU permits in Biggs run through City Hall, and like every California city, Biggs follows the state framework: ministerial by-right approval, four-foot side and rear setbacks, no owner-occupancy requirement for standard ADUs, and limited parking mandates. A recorded deed restriction is required for junior ADUs. Two local wrinkles we check during feasibility: some properties on the town’s edges are still on septic rather than city sewer, which affects unit sizing and placement, and low-lying ground near the Feather River watershed can carry floodplain considerations. We confirm utilities, setbacks, and any overlays with city staff for your specific parcel before design begins.
Biggs sits in working agricultural country, and the local rental picture reflects it — steady demand from farm and orchard employment plus commuters headed to Oroville, Gridley, and Chico along the SR-99 corridor. Many of the town’s older homes are also due for practical upgrades we fold into the project: electrical panel capacity, sewer lateral condition, and water service sizing. We’d rather find those items during feasibility than mid-construction, so we check them early.
Ready to find out what your Biggs lot can carry? ADU Cities is a Southern California ADU design-build firm — we handle feasibility, design, permits, and construction under one roof. Call 310.880.9718 for a free consultation and site evaluation. CSLB #1138550.