All other bldgs demolition permit -- swimming pool note _ it may not be possible to rebuild. _ the fact that there was an existing structure on your lot does not guarantee that you will be able to replace it if it is demolished. Existence of a structure does not "grandfather" its use if it is removed. Please see the zoning counter at the kearny mesa pds offices (55 overland ave., suite 110) for more information. Note self-certification by a licensed contractor is acceptable if a signed letter on company letterhead is provided to the building inspector.