Lot splits under SB 9 in Santee: the local rules

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

What Santee's code says

Santee code What Santee's code adds
How the lot may be divided	Each new lot must be between 40% and 60% of the original lot area. Applies: Applies to each resulting lot. § 12.21.050 · code text Each of the resulting lots must be between 40% and 60% of the original lot area.
Minimum new lot size	Each new lot must be at least 1,200 square feet. Applies: Applies to each resulting lot. § 12.21.050 · code text The resulting lots must each be at least 1,200 square feet.
Standards	The lot to be split must be at least 2,400 square feet. § 12.21.050 · code text The lot to be split must be at least 2,400 square feet. No more than 2 dwelling units of any kind on a resulting lot. Applies: Applies to each lot created by an urban lot split. § 12.21.050 · code text No more than two dwelling units of any kind may be built on a lot that results from an urban lot split. No more than 1 story or 16 feet high, measured from grade to peak. Applies: Applies to a new primary dwelling unit on a lot created by an urban lot split. § 12.21.050 · code text On a resulting lot, no new primary dwelling unit may exceed a single story or 16 feet in height, measured from grade to peak of the structure. No rooftop deck. Applies: Applies to any new or remodeled dwelling or structure on a lot created by an urban lot split. § 12.21.050 · code text No rooftop deck is permitted on any new or remodeled dwelling or structure on a lot resulting from an urban lot split. At most 25% lot coverage. Applies: Applies in the HL zone. § 12.21.050 · code text 2. Maximum Lot Coverage \| 25% \| 30% \| 35% \| 40% At most 30% lot coverage. Applies: Applies in the R-1 zone. § 12.21.050 · code text 2. Maximum Lot Coverage \| 25% \| 30% \| 35% \| 40% At most 35% lot coverage. Applies: Applies in the R-1A zone. § 12.21.050 · code text 2. Maximum Lot Coverage \| 25% \| 30% \| 35% \| 40% At most 40% lot coverage. Applies: Applies in the R-2 zone. § 12.21.050 · code text 2. Maximum Lot Coverage \| 25% \| 30% \| 35% \| 40% At least 20 feet of frontage, and at least 150 feet in length. Applies: Each new lot on the public right-of-way, unless the Fire Department approves otherwise. § 12.21.050 · code text Each resulting lot must have frontage on the public right-of-way of at least 20 feet and a minimum of 150 feet in length unless otherwise approved by the Fire Department. At least 50% landscaped with drought-tolerant plants. Applies: Applies to required setback areas. § 12.21.050 · code text Be at least 50% landscaped with drought-tolerant plants, with vegetation and irrigation plans approved by a licensed landscape architect;
Setbacks	At least 4 feet from side and rear property lines. Applies: Zone setbacks yield as needed to allow 2 units of at least 800 square feet each. § 12.21.050 · code text 800 Square Feet; Four-Foot Side and Rear. The setbacks imposed by the underlying zone must yield to the degree necessary to avoid physically precluding the construction of up to

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Frequently asked questions

Can I split my lot under SB 9 in Santee?

Santee's code: Each new lot must be at least 1,200 square feet. (Applies to each resulting lot.) (§ 12.21.050); The lot to be split must be at least 2,400 square feet. (§ 12.21.050).

Lot splits under SB 9 in Santee

What Santee's code says

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