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La Mirada · Building on your lot

Lot splits under SB 9 in La Mirada

La Mirada's own rules on lot splits under SB 9, with the code text for every value.

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Each rule below links to the section of the La Mirada Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What La Mirada's code says

La Mirada code What La Mirada's code adds
Setbacks
  • At least 4 feet from side and rear property lines.
    Applies: Not required for an existing structure, or one built in the same location and dimensions as an existing structure.
    § 20.30.040 · code text
    Except for those circumstances as stated above, the setback for side and rear property lines shall be four feet.
  • At least 20 feet from the front property line.
    Applies: Applies to the front setback.
    § 20.30.040 · code text
    The front setback to the property line shall be 20 feet.
  • At least 10 feet between structures, free and clear, measured wall to wall.
    § 20.30.040 · code text
    The distance between structures shall be ten feet, free and clear, measured from wall to wall.
Standards
  • Each new parcel must have at least 15 feet of frontage on the public right-of-way.
    § 20.30.040 · code text
    Each resulting parcel must have frontage on the public right-of-way of at least 15 feet.
  • Each unit must have a designated path of travel to the public right-of-way.
    § 20.30.040 · code text
    Each dwelling unit must have a designated path of travel that meets the public right-of-way.
  • Only residential uses are allowed.
    § 20.30.040 · code text
    The uses shall be limited to residential uses.
  • No short-term rentals. Units must be rented for at least 31 days.
    Applies: Applies to units created by an urban lot split.
    § 20.30.040 · code text
    Any unit created pursuant to this section shall be for a minimum of 31 days.
Owner occupancy
  • Owner signs an affidavit and records a covenant to live in 1 unit as principal residence at least 3 years.
    Applies: Counted from approval. Does not apply to a community land trust or a qualified nonprofit corporation.
    § 20.30.040 · code text
    The property owner of an urban lot split intends to occupy one of the dwelling units on the newly created lots as their principal residence for a minimum of three years from the date of the approval of the urban lot split.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

Can I split my lot under SB 9 in La Mirada?

La Mirada's code: Owner signs an affidavit and records a covenant to live in 1 unit as principal residence at least 3 years. (Counted from approval. Does not apply to a community land trust or a qualified nonprofit corporation.) (§ 20.30.040); Each new parcel must have at least 15 feet of frontage on the public right-of-way. (§ 20.30.040).

General information, not legal advice.

Ask about a specific La Mirada property

Ask GoCodebook how La Mirada's lot splits under SB 9 rules apply to your situation and get an answer that cites the section.

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La Mirada Municipal Code — full text