To prevent loss of life and property and to minimize economic loss caused by flood flows;

To establish criteria for land management and use in flood prone areas consistent with criteria promulgated by the Federal Insurance Administration for the purpose of providing flood insurance eligibility for property owners;

To prohibit encroachments, new construction, or other improvements or development that would obstruct the flow of floodwaters within a regulatory floodway; and

To regulate and control uses below the elevation of the design flood flow with the remainder of the flood plain.

Regulatory floodways shall be designated FP-1.

Floodway fringe areas, mudslide prone areas and other areas determined to be areas of special flood hazard or flood plain areas, as determined by the City Engineer, shall be designated FP-1 or FP-2.

Identification and mapping shall be based upon the design flood as determined by engineering studies satisfactory to the City Engineer and approved by City Council.

In areas where the floodways or flood plains are mapped by the County of Orange, the Federal Insurance Administration or the Department of Public Works, the regulatory requirements shall apply to the mapped area having the outermost boundaries.

Structural Floodproofing for Nonresidential Structures. Structural floodproofing as permitted herein shall be in accordance with the Uniform Building Code. A civil engineer or architect registered in the State of California shall certify that the floodproofing methods are adequate to with-stand the flood depths, velocities, hydrostatic and hydrodynamic loads, and effects of buoyancy and other factors associated with the design flood.

Anchoring. All new construction and substantial improvements shall be anchored to prevent flotation, collapse, or lateral movement of the structure.

Utilities.

The Community Development Department shall review projects proposed in the FP overlay districts to determine that all necessary permits and certificates have been obtained. It shall make recommendations concerning use permit applications prior to hearing and approval by the Planning Commission to assure compliance with the requirements of this chapter. It shall maintain for public inspection all records pertaining to the provisions of that section.

All development, subdivision, structure and substantial improvement proposals shall include submittal of detailed drainage studies and plans indicating how site grading in conjunction with any necessary drainage conveyance systems—including applicable swales, water course courses, channels, street flows, catch basins, storm drains and flood water retarding—will provide building pads and/or lowest floor elevations that are safe from flood flows expected from floods up to and including the design flood. The grading plan shall include identified on-site finished grade and "design flood" elevations, both related to mean sea level. Structural plans submitted for building permits shall show the first floor elevation of such structures as related to mean sea level. Said plans and elevation information shall be maintained on file by the Public Works Department for flood insurance reference purposes.

The Public Works Department shall notify adjacent communities prior to any alteration or relocation of a watercourse having an effect on the flood hazard areas shown on the F.I.R.M. and shall submit evidence of such notification to the Federal Insurance Administration.

The Department shall require that maintenance is provided within the altered or relocated portion of said watercourse so that the flood carrying capacity is not diminished.

No uses shall be approved unless the following findings are made:

All nonconforming structures within the area designated as FP-1 "Floodway" district on the effective date of application of the FP-1 district or any amendment of the FP-1 district regulations shall be removed subject to the following: If the useful life of the structure has not expired by a date five years after the effective date of the application of the FP-1 zone, the life of the structure shall be considered to have expired automatically, and said structure shall be removed.

Any enlargement, expansion, change in use, or substantial improvements of nonconforming structures shall be prohibited.

Any owner of a use or structure made nonconforming by the application of the FP-1 district may request the Planning Commission to grant an extension of time. The Planning Commission may grant an extension of time beyond the five-year period.

Procedure for Correcting Mapping Deficiencies Unrelated to Communitywide Elevation Determinations. Mapping deficiencies caused by inadvertent inclusion of the property in the FP zone or a physical alteration to surrounding property which affects the base flood level may be corrected without necessitating a zone change if the following requirements are met, as determined by the Planning Commission:

Appeals. Appeal of any determinations made by the Planning Commission under this section will be to the City Council.

The keeping of horses for the private use of family members residing on the premises.

The boarding of up to two horses owned by residents of the neighborhood.

Stables, shelters, or corrals for horses.

Minimum Lot Area. In the R1-12 and R1-15 zones, the minimum lot area required for the keeping of horses is 12,000 square feet. In all other zones, the provisions of Section 17.13.040 regarding animal keeping shall apply.

Distance from Streets, Residences. The edge of any private stable, shelter, or corral shall be set back a minimum distance of 50 feet from any street, highway or any residential building other than that of the owner.

All uses and structures permitted by the underlying zone district.

Open air temporary parking of transient vehicles. In no case shall the parking lot be used as a car sales lot.

Lot Size. Where the lot is to be used exclusively for automobile parking, no minimum lot size requirement shall apply.

Yards. Where the lot abuts a residential zoned lot, the front and street side yard setbacks shall be the same as required for that abutting residential lot. In all other cases, no yard requirements shall apply.

Fences and Walls. A division wall shall be erected between the parking uses and adjacent residential uses. The wall shall have a minimum height of six feet, except any wall or portion of a wall located in the required front yard area shall be limited in height to 42 inches.

Landscaping. The parking lot shall be landscaped as required by Section 17.34.130(H) of this title.

Signage. Parking lot signage shall conform to the requirements of Section 17.36 of this title.

A maximum of two bedrooms may be constructed onto and/or added within a primary residence by reconfiguring existing space. For purposes of calculating allowable additional bedrooms, the number of bedrooms existing as of January 1, 2023, shall be considered the baseline.

A maximum of two bathrooms, including half-bathrooms, may be constructed onto and/or added to a primary residence by reconfiguring existing space. For purposes of calculating allowable additional bathrooms, the number of bathrooms existing as of January 1, 2023, shall be considered the baseline.

A minimum of 100 square feet of additional usable open space beyond that required by Orange Municipal Code Table 17.14.070 must be provided for each additional bedroom being proposed to the existing primary residence.

A minimum of 100 square feet of additional common living area must be provided for each additional bedroom being proposed to the existing primary residence. Dwelling units that maintain a minimum of 800 square feet of common living area are exempt from the requirement.

A minimum of 50 cubic feet of additional unified indoor storage area must be provided for each additional bedroom being proposed to the existing primary residence. Such storage area must be in addition to cabinets and closets typically found within a dwelling unit such as bedroom closets, linen closets, or kitchen cabinets.

In any single-family residential district, the addition of one or two new bedrooms must comply with the following floor area ratio (FAR) standards.

Project applications involving exterior modifications to primary residences located in a historic district shall also be subject to design review by the Design Review Committee.

Historic District Approval. An application for additional bedrooms, bathrooms and other related improvements that involves new square footage or exterior modifications (other than roof vents), shall be subject to the design review process as follows:

Approval—Not in a Historic District. When the proposal is not in compliance with the overlay development standards contained in subsection C of this section, the Zoning Administrator shall have the final authority to review and approve the project.

Zoning Administrator Approval—Considerations. In approving an application for additional bedrooms, bathrooms, and/or other related improvements not in compliance with the overlay development standards contained in subsection C above, the Zoning Administrator shall consider the following:

Appeals. Final decisions of the Community Development Director, Design Review Committee or Zoning Administrator may be appealed to the Planning Commission pursuant to Section 17.08.050(E).