Anderson · Building on your lot

Lot splits under SB 9 in Anderson

Anderson'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 Anderson Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Anderson's code says

Anderson code What Anderson's code adds
How the lot may be divided	2 parcels of about equal area; neither may be smaller than 40% of the original lot. § 17.70.040 · code text The lot split shall result in no more than two parcels (one net new parcel) of approximately equal lot area, provided that one parcel shall not be smaller than forty percent of the lot area of the original parcel proposed for subdivision and in no instance shall any resulting lot be smaller than one thousand two hundred square feet in area.
Unit size	At most 800 square feet of floor area per unit. Applies: Applies when the unit does not meet all development standards of the zoning district. § 17.71.050 · code text The maximum floor area of a unit in a two-unit development shall be eight hundred square feet if the unit does not meet all development standards contained in the underlying zoning district.
Minimum new lot size	No new lot may be smaller than 1,200 square feet. § 17.70.040 · code text The lot split shall result in no more than two parcels (one net new parcel) of approximately equal lot area, provided that one parcel shall not be smaller than forty percent of the lot area of the original parcel proposed for subdivision and in no instance shall any resulting lot be smaller than one thousand two hundred square feet in area.
Standards	At most 16 feet high from existing grade. Applies: Applies when the unit does not meet all development standards of the zoning district. § 17.71.050 · code text The maximum height shall be sixteen feet from existing grade as defined by this Code if the unit does not meet all development standards contained in the underlying zoning district. A solid 1-hour fire-rated wall with no openings is required between adjacent or connected units. Applies: Applies to adjacent or connected units built as part of a two-unit development. § 17.71.050 · code text A solid (no openings) one-hour fire rated wall is required between adjacent or connected units constructed as part of a two-unit development. New units must connect to a public sewer or have a private wastewater system fully inside the parcel. Applies: Applies to newly created dwelling units. § 17.71.050 · code text All newly created dwelling units shall be connected to a public sewer or provide a private wastewater system that is fully contained within the parcel's boundaries. Same architectural style, detail, color and building material as the main home. Applies: Applies to newly built units. § 17.71.050 · code text Newly constructed units shall be of the same architectural style, detail, color and building material as the primary dwelling unit. Windows need opaque glass or a sill above eye level. Doors need no windows or only opaque glass. Applies: Applies to new windows or doors facing an adjoining residential property. § 17.71.050 · code text Any new window that faces an adjoining residential property shall be either made of opaque glass and/or have a sill height above eye level. Any new doors that face an adjoining residential property shall either not include windows, or all windows must be of opaque glass. All exterior lighting must be shielded and point downward. Applies: Applies to exterior lighting. § 17.71.050 · code text All exterior lighting shall be shielded and directed downward. No white or light opaque exterior skylight lenses, and no lights inside skylight wells. Applies: Applies to skylights visible from off site. § 17.71.050 · code text Where visible from off-site locations, skylights shall not have white or light opaque colored exterior lenses and no lights shall be installed inside the wells of the skylights. Shrubs must be at least 1-gallon size and no more than 8 feet high. Applies: Applies to shrubs on the sides and rear of the property. § 17.71.050 · code text Shrubs, of at least one-gallon size, and limited to a maximum height of eight feet on the sides and rear of the property; Trees must be at least 15-gallon size and grow to no more than 12 feet high. Applies: Applies to trees. § 17.71.050 · code text Trees, of at least fifteen-gallon size and that grow to a maximum height of twelve feet; Decorative nonliving landscaping materials may satisfy at most 25% of the parcel. Applies: Applies to decorative nonliving landscaping materials such as sand, stone, gravel, wood or water. § 17.71.050 · code text Decorative nonliving landscaping materials including, but not limited to, sand, stone, gravel, wood or water may be used to satisfy a maximum of twenty-five percent of the parcel.

Who this affects

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Frequently asked questions

Can I split my lot under SB 9 in Anderson?

Anderson's code: No new lot may be smaller than 1,200 square feet. (§ 17.70.040); At most 800 square feet of floor area per unit. (Applies when the unit does not meet all development standards of the zoning district.) (§ 17.71.050).

General information, not legal advice.

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Anderson Municipal Code — full text