Lot splits under SB 9 in Carson: the local rules

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

What Carson's code says

Carson code What Carson's code adds
How the lot may be divided	Neither new lot can be smaller than 40% of the original lot's area. Applies: An urban lot split into no more than 2 lots of about equal area. § 9210.5 · code text Neither resulting parcel shall be smaller than forty (40) percent of the lot area of the original parcel proposed for subdivision;
Minimum new lot size	Each new lot must be at least 1,200 square feet. § 9210.5 · code text Neither resulting parcel shall be smaller than one thousand two hundred (1,200) square feet;
Standards	Each new lot must be at least 20 feet wide with at least 20 feet of street frontage. § 9210.5 · code text Each resulting lot shall be at least twenty (20) feet wide and shall have at least twenty (20) feet of street frontage. No more than 2 new lots, of about equal area. § 9210.5 · code text An urban lot split shall subdivide an existing parcel to create no more than two (2) new parcels of approximately equal lot area; provided, that: The lot must be in an RS zone. Applies: A lot proposed for an urban lot split. § 9210.4 · code text Shall be located in an RS zoning district; At least 1 home must be on the lot on the approval date. Applies: Unless the lot is owned by a community land trust or qualified nonprofit corporation. § 9210.4 · code text Shall have at least one (1) residential dwelling unit located on it on the date that the urban lot split is approved, unless the parcel is owned by a "community land trust," as defined in Revenue and Taxation Code Section 402.1(a)(11)(C)(ii), or a "qualified nonprofit corporation" as described in Revenue and Taxation Code Section 214.15; Only residential uses may be on the lot on the approval date. Applies: A lot proposed for an urban lot split. § 9210.4 · code text Shall only have residential uses located on it on the date the urban lot split is approved; Each new lot must have access to or border the public right-of-way. § 9210.5 · code text Each parcel resulting from an urban lot split shall have access to or adjoin the public right-of-way, and, if necessary, provide the other parcel with access to the right-of-way through an easement. Units cannot be rented for less than 31 consecutive days. Applies: Homes built on lots created by an urban lot split. § 9210.6 · code text Residential units constructed on parcels created by an urban lot split shall not be rented for a term of less than thirty-one (31) consecutive days.
Owner occupancy	Owner signs an affidavit to live on 1 new lot as their main home for at least 3 years. Applies: Counted from the approval date; does not apply to a community land trust or qualified nonprofit corporation. § 9210.5 · code text The owner intends to occupy a residential dwelling unit on one (1) of the parcels created by the urban lot split as their primary residence for a minimum of three (3) years from the date of the approval of the urban lot split.

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Frequently asked questions

Can I split my lot under SB 9 in Carson?

Carson's code: Each new lot must be at least 1,200 square feet. (§ 9210.5); Owner signs an affidavit to live on 1 new lot as their main home for at least 3 years. (Counted from the approval date; does not apply to a community land trust or qualified nonprofit corporation.) (§ 9210.5).

Lot splits under SB 9 in Carson

What Carson's code says

Who this affects

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