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Title 13 — Planning, Zoning and Development›Chapter V — DEVELOPMENT STANDARDS›Article 10 — Floodway and Floodplain Districts

§ 13-83. Exceptions to designate flood hazard area.

Costa Mesa Zoning Code · 2026-06 edition · updated 2026-07-25 · Costa Mesa

The floodplain administrator may determine that certain properties within a floodplain district are not required to comply with the provisions of this article, "floodplain" district, when it can be shown that any of the following circumstances or conditions are present:

  • (a) The zoning map includes property within a floodway district that is found not to be within a floodplain area due to incorrect preparation of the zoning map or to physical alteration or surrounding property which effectively removed the subject property from the floodplain area. The floodplain administrator's determination shall be based on a study of topographic and design flood elevation contours on the subject property, and on such additional information as is found necessary or appropriate.

  • (b) Flood protective or flood control work, adequate to protect against the design flood and in compliance with county flood control and flood protective standards and policies, has been completed. The director's finding shall confirm that any stream, channel, storm drain or landfill improvements fully offset flood surface elevations established by the applicable floodplain map; and that if the property is included on a flood insurance rate map or a flood boundary and floodway map, all such flood protective or flood control work has been approved by the appropriate federal agency and the property removed from the floodplain designation on such maps.

  • (Ord. No. 97-11, § 2, 5-5-97; Ord. No. 04-1, § 1, 1-20-04; Ord. No. 06-20, § 1k., 9-19-06)

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▸ Contents — Costa Mesa Zoning Code
Costa Mesa Zoning Code
  1. ▸ Title 13 — Planning, Zoning and Development
    Overview
    1. Chapter I — IN GENERAL
    2. Chapter II — ZONING DISTRICTS ESTABLISHED
    3. Chapter III — PLANNING APPLICATIONS
    4. Chapter IV — CITYWIDE LAND USE MATRIX
    5. ▸ Chapter V — DEVELOPMENT STANDARDS
      Overview
      1. Article 1 — Residential Districts
      2. Article 2 — Residential Common Interest Developments
      3. Article 2.5 — Residential Small lot Subdivisions
      4. Article 3 — Commercial Districts
      5. Article 4 — Establishments Where Food or Beverages are Served
      6. Article 4.5 — Development Standards for Churches and Other Pla…
      7. Article 5 — Industrial Districts
      8. Article 5.5 — Non-Residential Common Interest Developments
      9. Article 6 — Planned Development
      10. Article 7 — Institutional and Recreational, Institutional and …
      11. Article 8 — Floor Area Ratios
      12. Article 9 — General Site Improvement Standards
      13. ▸ Article 10 — Floodway and Floodplain Districts
        Overview
        1. § 13-77. Purpose.
        2. § 13-78. Definitions.
        3. § 13-79. Application.
        4. § 13-80. Uses permitted in the floodway areas.
        5. § 13-81. Uses permitted in the designated floodway fringe and …
        6. § 13-82. Procedures and development standards for floodway are…
        7. § 13-83. Exceptions to designate flood hazard area.
      14. Article 11 — Mixed-Use Overlay District
      15. Article 12 — Residential Incentive Overlay District
      16. Article 1 — Residential Districts
      17. Article 2 — Non-Residential Districts
      18. Article 3 — Development Standards
    6. Chapter VII — LANDSCAPING STANDARDS
    7. Chapter VIII — SIGNS
    8. Chapter IX — SPECIAL LAND USE REGULATIONS
    9. Chapter X — NONCONFORMING USES, DEVELOPMENTS AND LOTS
    10. Chapter XI — SUBDIVISIONS
    11. Chapter XII — SPECIAL FEE ASSESSMENTS
    12. Chapter XIII — NOISE CONTROL
    13. Chapter XIV — OIL DRILLING
    14. Chapter XV — GROUP HOMES
    15. Chapter XVII — AFFORDABLE HOUSING ORDINANCE

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