Call the Building Division at 375-7411. Staff can usually advise you over the phone if the project you are considering does or does not require a permit.
Click for a copy of the Hillsborough Building Permit Application
A Hillsborough building permit provides legal permission to start construction of a building project in accordance with approved drawings and specifications. Building permits are beneficial to you and your community. As you work with Building Division staff, you will benefit from their knowledge of the building codes to ensure your construction project is built right, it will be safe and it will last. Safe construction practices help protect you, your family, your friends and your investment. Be sure to get your local code official involved with your project, because the Building Division is your partner.