44933 N. Fern Avenue 
Lancaster, CA 93534 
Telephone: (661) 723-6144 
Facsimile: (661) 723-6264 

Office Hours: Monday–Thursday 8 a.m. to 6 p.m., Friday 8 a.m. to 5 p.m. Click here for counter hours for Building & Safety and Development Engineering Plan Check Staff.

The Building and Safety Division issues permits and consults and advises architects, engineers, designers, and others. The division also reviews all building plans for compliance with code requirements and makes periodic inspections during the course of construction. 

COVID-19 Construction Site Safety Guidelines

Building Permits

Building permits are issued based on the current edition of the California Building Codes and local City amendments; encompassing building, electrical, mechanical, plumbing, sewer work, state energy requirements; and state accessibility laws. These codes are enforced to protect you and your property investment. The permitting process ensures that your project proceeds according to safe building practices and can offer assurances that contractors are properly licensed to perform the work.

Online Permit Application

The City of Lancaster, in partnership with Accela, is now expanding the types of permits available for online permitting to the following: residential rooftop solar, water heaters, mechanical, electrical, plumbing, signs, and residential standard patio covers. Citizens who are interested in applying for any of these permits can simply register for an account. The account registration not only enables the permit application process to begin, it also allows applicants to monitor their status along the permitting process.

To register an account and begin the permit process, citizens and solar providers can access the new Citizen Access Portal at: 


Please note that if a permit is applied for at City Hall a SIGNED Building Permit Declarations document must be uploaded before a permit can be issued. You may download the Building Permit Declarations document here. Once the permit has been issued, the system also provides the capability for the online scheduling of inspections.

Permit Applications: Download a permit application here.

Expedited Solar Permitting

Lancaster has recently expanded its "solar friendly" guidelines for permitting small-scale solar photovoltaic systems for one and two-family dwellings to include solar thermal systems as well. New toolkits for Solar Photovoltaic, Solar Pool Heating, and Solar Domestic Water Heating systems are now available. Plans for projects complying with these toolkits are eligible for expedited “over the counter” review, or you may submit your application and plans online for next business day review and permitting at https://aca-prod.accela.com/LANCASTER/Default.aspx.

Certificate of Occupancy

Buildings or structures are not to be used or occupied, nor can a change in the existing occupancy of a building or structure be made until the building official issues a Certificate of Occupancy. An application for Certificate of Occupancy form must be completed, and all applicable agency clearances, as indicated on the form, must be approved. Download the form here.

Certificate of Completion 

Upon completion of the shell of a commercial or industrial building, a Certificate of Completion for the shell building will be issued by the building official. An individual Certificate of Occupancy will be issued for each permitted tenant improvement when the tenant improvement is completed. An application for Certificate of Completion form must be completed, and all applicable agency clearances, as indicated on the form, must be approved. Download the form here.


  • The 2016 California Building Codes, including the Building Code, Residential Code, Electrical Code, Mechanical Code, Plumbing Code, Energy Code, Fire Code, and the Green Building Standards Code, become mandatory throughout the State of California on January 1, 2017. Lancaster has amended these codes and adopted them as the Lancaster Codes for Buildings and Construction. Click here for the Lancaster Amendments.
  • Tiny Homes. Interested in a Tiny Home, read this information bulletin from the California Department of Housing and Community Development here.
  • In response to the drought emergency in California, Lancaster has adopted water efficient landscape requirements for all landscaping projects of 500 square feet or more. The Department of Water Resources MWELO requirements are enforced.
  • Carbon Monoxide Poisoning Prevention Act: On May 7, 2010, Senate Bill (SB) 183 was enacted into law and is known as the Carbon Monoxide Poisoning Prevention Act (Act). This will require the placement of carbon monoxide devices in all dwelling units; and requires that the presence or absence of these devices must be disclosed when residential real estate is transferred. Click here for more information.