Step One: Submit Completed Form. A 180-day time extension for obtaining a Compliance Certificate is available when you are buying or selling a property.For most projects, fill out the Basic Application for Development Review and other needed forms. Prepare required plans and materials. I am requesting an extension of the expiration date of my Building Permit Application, per Section 304 (d) of the Oakland. Fill out the forms and pay the Time Extension Certificate fee. 2. Complete and Sign Time Extension Certificate. Gov, with "Request for Soft Story Extension" in the subject line, or. The Department requests a four month contract award time extension for construction. Permits are required in the City of Oakland either to operate a business or perform construction on buildings or structures.