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Signal Hill · Building on your lot

Lot splits under SB 9 in Signal Hill

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

Ask about lot splits under SB 9 in Signal Hill See coverage

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

What Signal Hill's code says

Signal Hill code What Signal Hill's code adds
Standards
  • The lot must be in a single-family residential zone, including a specific plan limiting its use to one primary dwelling.
    § 18.26.050 · code text
    The lot to be split is in a "single-family residential zone". For purposes of this chapter, a "single-family residential zone" is a zone where the only residential use that is allowed as a primary use is a single residential dwelling on a lot.
  • Not allowed on specified protected, hazardous, agricultural, conservation, wetland, flood, fire-hazard, fault-zone or protected-species land, subject to stated exceptions.
    § 18.26.050 · code text
    The lot to be split is not located on a site that is any of the following: a. Prime farmland, farmland of statewide importance, or land that is zoned or designated for agricultural protection or preservation by the voters.
  • The lot cannot be a historic property, or in a historic district, on the state inventory or designated by ordinance.
    § 18.26.050 · code text
    The lot to be split must not be a historic property or within a historic district that is included on the State Historic Resources Inventory.
  • The lot must not come from a prior urban lot split.
    Also must not adjoin a lot from a prior urban lot split by the owner or someone acting in concert with the owner.
    § 18.26.050 · code text
    The lot to be split was not established through a prior urban lot split.
  • Split must not require or include demolishing or altering specified protected housing, including income-restricted or rent-controlled housing.
    § 18.26.050 · code text
    The urban lot split must not require or include the demolition or alteration of any of the following types of housing: a. Housing that is income-restricted for households of moderate, low, or very low income.

Also in Signal Hill's code: Urban lot splits (Ch. 18.26); Two-unit projects (§ 20.10.041). This page does not summarize it yet.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

Can I split my lot under SB 9 in Signal Hill?

Signal Hill's code: The lot must be in a single-family residential zone, including a specific plan limiting its use to one primary dwelling. (§ 18.26.050); Not allowed on specified protected, hazardous, agricultural, conservation, wetland, flood, fire-hazard, fault-zone or protected-species land, subject to stated exceptions. (§ 18.26.050).

General information, not legal advice.

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

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