Available Forms require Please Note: All applications must be submitted in person to the appropriate department.   Planning Permit Application Form Application for a Building Permit  The following Building Permits can be obtained by Fax or Mail using the above application form:  Re-Roofing Permits, Water Heater Replacements, Furnace Replacements, Termite Reports which do not include replacements where plans are required, Electrical Service Changes by a licensed electrician, Gas, Water or Sewer Line Repairs - not requiring an Encroachment Permit. Read ... How to Apply for a Permit by Fax or Mail Application for RH/DR Density Certification Biological Impact Form Environmental Information Disclosure Form   Application for a Permit to Trim or Remove Trees Application for a Lot Line Adjustment Application for a Planned Agricultural District Permit Application for a Stable Permit Application for a Zoning Nonconformity Use Permit Application for a Use Permit Application for a Variance Application for a Home Improvement Exception Application for a Design Review Application for a Coastal Development Permit Certificate of Exemption or Exclusion from Requirement for a Coastal Development Permit        San Mateo County Cares - Survey San Mateo County Planning & Building Department County Office Building 455 County Center Redwood City, CA 94063 Phone: (650) 363-4161 Fax: (650) 363-4849