Costa Mesa, CA Code Violation Reporting: How to Report (2026)

Costa Mesa's nuisance abatement chapter sets the process that turns a reported condition into an enforceable finding. Section 20-11(b) requires that a condition shall not be declared a nuisance unless it can be readily identified, observed or heard without entry onto the property, or it can be observed and established pursuant to a consent physical entry upon the property, or it can be observed and established during an entry under the authority of a judicial warrant issued by a court of competent jurisdiction. That structure controls how a report from a neighbor or passerby can actually be acted on.

Section 20-14 gives the director the entry power behind the second and third routes: the director may use all lawful means to enter upon any property in the city for the purpose of inspecting for a public nuisance and/or removing it, and if the owner or occupant refuses access, the director shall apply to a judge of a court of competent jurisdiction for a warrant authorizing entrance. Once a violation is confirmed, Section 20-15 requires a written 'NOTICE OF PUBLIC NUISANCE' identifying the parcel and violation and setting a correction deadline, served under Section 20-16 by posting on the property and mailing to the address on the county assessor's roll.