Lot splits under SB 9 in Upland: the local rules

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

What Upland's code says

Upland code What Upland'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. § 16.48.050 · code text Each of the resulting lots must be between 40 percent and 60 percent of the original lot area.
Unit size	More than 500 and no more than 800 square feet; an existing home over 800 square feet may not expand. Applies: Applies to each primary dwelling on a lot created by an urban lot split. § 16.48.050 · code text A primary dwelling that was legally established prior to the urban lot split and that is larger than 800 square feet is limited to the
Minimum new lot size	Each new lot must be at least 1,200 square feet. Applies: Applies to each resulting lot. § 16.48.050 · 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. Applies: Applies to the original lot. § 16.48.050 · code text The lot to be split must be at least 2,400 square feet. No more than 2 dwelling units of any kind. Applies: Applies to each lot created by an urban lot split. § 16.48.050 · code text No more than two dwelling units of any kind may be built on a lot that results from an urban lot split. Each new lot needs at least 30 feet of frontage on the public right-of-way. Applies: Applies to an urban lot split. § 16.48.050 · code text Each resulting lot must have frontage on the public right-of-way of at least 30 feet. Each new lot must adjoin the public right-of-way. Applies: Applies to each resulting lot. § 16.48.050 · code text Each resulting lot must adjoin the public right-of-way. Only lots in the RS-20, RS-15, RS-10, RS-7.5 and RS-4 single-family zones may be split. Applies: Applies to the lot to be split. § 16.48.050 · 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 and includes only the following zones: RS-20 (Residential Single-Family Low), RS-15 (Residential Single-Family Low), RS-10 (Residential Single-Family Low), RS-7.5 (Residential Single-Family Medium), and RS-4 (Residential Single-Family Medium). No dedication of rights-of-way or building of off-site improvements is required. Applies: Applies to an urban lot split. § 16.48.050 · code text Notwithstanding Section 66411.1 of the SMA, no dedication of rights-of-way or construction of off-site improvements is required for an urban lot split.

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Frequently asked questions

Can I split my lot under SB 9 in Upland?

Upland's code: Each new lot must be at least 1,200 square feet. (Applies to each resulting lot.) (§ 16.48.050); More than 500 and no more than 800 square feet; an existing home over 800 square feet may not expand. (Applies to each primary dwelling on a lot created by an urban lot split.) (§ 16.48.050).

Lot splits under SB 9 in Upland

What Upland's code says

Who this affects

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