Accessory Dwelling Unit plans offered free by county

Erik V. Lundquist, AICP, Director
1441 Schilling Place, South 2nd Floor Salinas, California 93901-4527
September 7, 2023
(831) 755-5025
County of Monterey Offers Free, Pre-Approved Standard Plans for Accessory Dwelling Units (ADUs)
In an effort to streamline the Accessory Dwelling Unit (ADU) building process, The County of Monterey is excited to offer three (3) pre-designed ADU plans available to homeowners.
ADUs are a smaller, independent residential dwelling unit located on the same lot as a standalone single family home.
Our pre-designed ADU Standard Plans are free of charge and have been reviewed and stamped ‘Approved’ by the County of Monterey Building Division in compliance with the California Building Code. This means that these plans have been determined to meet the California Building Code requirements and use of the plans will not require structural engineering. It also means that use of these plans will save time and money when applying for a building permit because they will have already been reviewed and approved.
Please note these plans are:


ADUs present affordable additional housing for parents, grandparents, friends,
young people, or even long term rental income.

4 thoughts on “Accessory Dwelling Unit plans offered free by county

  1. I corrected the link on my end, but when one clicks on it now, Monterey County says they are working on correcting the error on their end. That I have no control over

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