Chico, CA Accessory Structures: ADU Impact Fees (2026)

Where a single-family residential unit includes an Accessory Dwelling Unit (ADU), the ADU shall be assessed fifty percent (50%) of the development impact fees, so long as the ADU utilizes the same sewer lateral as the primary residence of the property; and

C.   In acknowledgement that the number of bedrooms in a new residence correlates to household size, and therefore to impacts on City infrastructure and facilities, and, similarly, that the number of bathrooms in a residence directly correlates to the number of drainage fixtures, which corresponds to impacts on the City's sanitary sewer infrastructure, the following fee reductions and increases are applied:

1.   Single Family Dwelling Units:

i.   Units that have two (2) or less bedrooms and two (2) or less bathrooms will receive a thirty percent (30%) reduction in the base impact fee

ii.   Units with four (4) or more bedrooms and three (3) or more bathrooms will pay a thirty percent (30%) increase from the base impact fee

2.   Multi-Family Dwelling Units:

i.   Units that have one (1) or less bedrooms and one and half (1.5) or less bathrooms will receive a thirty percent (30%) reduction in the base impact fee

ii.   Units with four (4) bedrooms and bathrooms that range between two (2) and four (4), will pay a thirty percent (30%) increase from the base impact fee

iii.   Units with five (5) or more bedrooms that also have more than