Villa Park · Building on your lot

Lot splits under SB 9 in Villa Park

City rule: each SB 9 lot must be 40% to 60% of the original lot area and have at least 10 feet of frontage. City rule: new SB 9 units are more than 500 and at most 800 square feet, limited to 16 feet and 1 story.

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Key points

Lot splits: City rule: each SB 9 lot must be 40% to 60% of the original lot area and have at least 10 feet of frontage.
SB 9 homes: City rule: new SB 9 units are more than 500 and at most 800 square feet, limited to 16 feet and 1 story.

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

What Villa Park's code says

Villa Park code What Villa Park'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 lot created by the split. § 23-24.1.5 · code text Each of the resulting lots shall be between sixty (60) percent and forty (40) percent of the original lot area.
Unit size	More than 500 and no more than 800 square feet of floor area. Applies: Applies to each main home built under this article. § 23-24.2.5 · code text The total floor area of each primary dwelling unit that is developed under this article shall be less than or equal to eight hundred (800) square feet and more than five hundred (500) square feet. Limited to its lawful floor area at the time of the two-unit project; it may not be expanded. Applies: An existing legal main home larger than 800 square feet, built before the two-unit project. § 23-24.2.5 · code text A primary dwelling unit that was legally established on the lot prior to the two-unit project and that is larger than eight hundred (800) square feet is limited to the lawful floor area at the time of the two-unit project. May be expanded up to 800 square feet. Applies: An existing legal main home smaller than 800 square feet, built before the two-unit project. § 23-24.2.5 · code text A primary dwelling unit that was legally established prior to the two-unit project and that is smaller than eight hundred (800) square feet may be expanded to eight hundred (800) square feet after or as part of the two-unit project.
Minimum new lot size	Each new lot must be at least 1,200 square feet. Applies: Applies to each lot created by the split. § 23-24.1.5 · code text The resulting lots shall each be a minimum of one thousand two hundred (1,200) square feet in size.
Setbacks	At least 4 feet. Applies: Interior side and rear yards; existing legal structures and same-size rebuilds in the same place are excepted. § 23-24.2.5 · code text Dwelling units shall provide a minimum of four (4) feet interior side yard and interior rear yard setbacks from the property line. At least 10 feet. Applies: Exterior side and rear yards next to public rights-of-way. § 23-24.2.5 · code text Dwelling units shall provide a minimum of ten (10) feet exterior side yard and exterior rear yard setbacks from the property line.
Standards	No more than 2 homes of any kind. Applies: Applies to a lot created by an urban lot split. § 23-24.2.5 · code text No more than two (2) dwelling units of any kind shall be built on a lot that results from an urban lot split. No more than 16 feet and 1 story. Applies: Applies to homes in a two-unit (SB 9) project. § 23-24.2.5 · code text Maximum building height/stories shall be sixteen (16) feet and shall be limited to one (1) story. No rooftop decks, balconies or similar construction. Applies: Any new or remodeled building on a lot with a two-unit project. § 23-24.2.5 · code text No rooftop deck, balcony or similar construction on any new or remodeled dwelling unit or structure shall be permitted on a lot with a two-unit project. At least 10 feet of frontage on a public right-of-way. Applies: Each lot from an urban lot split; it must also have access to or border the public right-of-way. § 23-24.1.5 · code text Each resulting lot shall have access to or adjoin the public right-of-way and each shall have at least ten (10) feet of frontage on a public right-of-way. At least 2 building materials, each covering at least 20% of the building front. Applies: Any building front, not counting roof and foundation, besides glass and railings. § 23-24.2.5 · code text At least two (2) building materials shall be used on any building frontage (excluding roof and foundation) in addition to glazing and railings. Any one material shall comprise at least twenty (20) percent of the building frontage. At least 2 exterior colors. Applies: Applies to exterior color treatment. § 23-24.2.5 · code text At least two (2) exterior colors shall be used.
Parking	1 parking space, reached by a driveway at least 12 feet wide and 20 feet long. Applies: SB 9 projects, unless within a one-half mile walk of a high-quality transit corridor or major transit stop, or 1 block of car share. § 23-24.2.5 · code text SB 9 housing developments shall provide one (1) parking space, accessed by a minimum 12-foot wide by 20-foot-long driveway, unless the parcel is located within one-half (½) mile walking distance of either a high-quality transit corridor, a major transit stop, or within one block of a car share vehicle.

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Frequently asked questions

Can I split my lot under SB 9 in Villa Park?

City rule: each SB 9 lot must be 40% to 60% of the original lot area and have at least 10 feet of frontage. City rule: new SB 9 units are more than 500 and at most 800 square feet, limited to 16 feet and 1 story.

General information, not legal advice.

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