Can I split my lot under SB 9 in Corona?

Corona's code: Each new lot must be at least 1,200 square feet. (Applies to each lot created by an urban lot split.) (§ 16.18.060); The owner must live in one unit as a main home for at least 3 years from approval. (Applies to an urban lot split and is recorded as a deed restriction.) (§ 16.18.050).

Lot splits under SB 9 in Corona: the local rules

Corona code What Corona's code adds
How the lot may be divided	Two lots of about equal area; neither may be smaller than 40% of the original lot. Applies: Applies to an urban lot split. § 16.18.060 · code text The urban lot split shall create no more than two new parcels of approximately equal area provided that one parcel shall not be smaller than 40% of the lot area of the original parcel proposed for subdivision.
Unit size	Each new home may be no more than 800 square feet. Applies: Applies to each new unit in a two-unit housing development. § 16.18.070 · code text The total floor area of each new dwelling unit shall not exceed 800 square feet. Limited to its current lawful floor area; it may not be expanded. Applies: Only for an existing, legally built home of at least 800 square feet, built before the application. § 16.18.070 · code text An existing dwelling unit that was legally established on the subject parcel prior to the submittal of an application for a two-unit housing development and has a total floor area of at least 800 square feet shall be limited to its current lawful floor area and may not be expanded. May be expanded up to 800 square feet. Applies: Only for an existing, legally built home under 800 square feet, built before the application. § 16.18.070 · code text An existing dwelling unit that was legally established on the subject parcel prior to the submittal of an application for a two-unit housing development and has a total floor area less than 800 square feet may be expanded up to 800 square feet.
Minimum new lot size	Each new lot must be at least 1,200 square feet. Applies: Applies to each lot created by an urban lot split. § 16.18.060 · code text Each parcel created by an urban lot split shall not be smaller than 1,200 square feet in area.
Setbacks	At least 4 feet from side and rear lot lines. Applies: Only when zone setbacks would prevent two units of at least 800 square feet. § 16.18.070 · code text in which case, each dwelling unit shall have a minimum setback of four feet from the side and rear lot lines. No setback is required. Applies: Only for an existing home, or a home built in the same place and to the same size as an existing one. § 16.18.070 · code text Notwithstanding the foregoing, no setback shall be required for an existing dwelling unit or a dwelling unit constructed in the same location and to the same dimensions as an existing dwelling unit.
Standards	No more than 2 homes on the parcel. Applies: Applies to all two-unit housing developments. § 16.18.070 · code text No more than two dwelling units are permitted on a subject parcel. The single-family zone's development standards apply. Applies: Unless they conflict with this chapter or would physically prevent either unit from being at least 800 square feet. § 16.18.070 · code text The development standards of the single-family residential zone in which the subject parcel is located that are not otherwise in conflict with the standards set forth in this chapter shall apply to a two-unit housing development unless the applicant demonstrates to the satisfaction of the Director that one or more of said development standards would physically preclude either of the two dwelling units from being at least 800 square feet in floor area. Each home needs its own entrance from the outside. Applies: Applies to each unit created by a two-unit housing development. § 16.18.070 · code text Each dwelling unit created by a two-unit housing development shall have a separate entrance from the exterior of the building. Keep at least 5 feet between these structures. Applies: Applies between detached garages, accessory structures, and patio covers or carports. § 16.18.070 · code text A minimum separation of five feet shall be maintained between detached garages, accessory structures and patio covers or carports. Each new lot must be at least 75% as wide as the original lot. Applies: Applies to any lot created by an urban lot split. § 16.18.060 · code text The width of any parcel created by an urban lot split shall not be less than 75% of the lot width of the original parcel proposed for subdivision. A flag lot's access corridor must be at least 12 feet wide. Applies: Applies to urban lot splits; no flag lots are allowed if the parcel has alley access. § 16.18.060 · code text Flag lots providing an access corridor to the public right-of-way shall have a width of not less than 12 feet. Each new lot must border the public right-of-way. Applies: Applies to each lot created by an urban lot split. § 16.18.060 · code text Each parcel created by an urban lot split shall adjoin the public right-of-way. Each home must have its own direct utility connection. Applies: Applies to each unit created by a two-unit housing development. § 16.18.070 · code text Each dwelling unit created by a two-unit housing development shall have its own direct utility connection to the utility / public service provider.
Owner occupancy	The owner must live in one unit as a main home for at least 3 years from approval. Applies: Applies to an urban lot split and is recorded as a deed restriction. § 16.18.050 · code text The record owner shall occupy one of the dwelling units on the subject parcel as their principal residence for at least three years from the date of the city’s approval of the urban lot split.
Parking	Each unit in a two-unit housing development needs 1 covered, off-street parking space. Applies: None required within one-half mile walking distance of high-quality transit or a major transit stop, or within 1 block of a car share vehicle. § 16.18.070 · code text One covered, off-street parking space shall be provided for each dwelling unit created by a two-unit housing development. No parking is required. Applies: Only within a one-half mile walk of a high-quality transit corridor or major transit stop, or 1 block of a car share vehicle. § 16.18.070 · code text The subject parcel is located within one-half mile walking distance of either a high-quality transit corridor, as defined in Cal. Public Resources Code § 21155(b), or a major transit stop, as defined in Cal. Public Resources Code § 21064.3;

Lot splits under SB 9 in Corona

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