Office of the City Clerk - Record #: O2021-1228

• Record #: O2021-1228
• Type: Ordinance
• Status: Passed
• Intro date: 3/24/2021
• Current Controlling Legislative Body: Committee on Zoning, Landmarks and Building Standards
• Final action: 4/21/2021
• Title: Amendment of Municipal Code Chapters 17-2, 17-9 and 17-17 regarding open space, side setbacks for accessory buildings and allowable feature encroachments of Additional Dwelling Units (ADUs) in residential zoning districts
• Sponsors: Lightfoot, Lori E.
• Topic: MUNICIPAL CODE AMENDMENTS - Title 17 - Chicago Zoning Ordinance - Ch. 2 Residential Districts, MUNICIPAL CODE AMENDMENTS - Title 17 - Chicago Zoning Ordinance - Ch. 9 Use Regulations, MUNICIPAL CODE AMENDMENTS - Title 17 - Chicago Zoning Ordinance - Ch. 17 Terminology & Measurements, Land Use & Zoning-Tables & Index

Date	Journal Page Number	Action By	Action	Result
4/21/2021	29942	City Council	Passed	Pass
3/24/2021	28473	City Council	Referred

OFFICE OF THE MAYOR
CITY OF CHICAGO
LORI E. LIGHTFOOT
MAYOR

March 24, 2021










TO THE HONORABLE, THE CITY COUNCIL OF THE CITY OF CHICAGO


Ladies and Gentlemen:

At the request ofthe Commissioners of Buildings and Planning and Development, I transmit herewith an ordinance amending the Municipal Code of Chicago regarding additional Dwelling Units (ADUs).

Your favorable consideration of this ordinance will be appreciated.

O R I) I N A N C E


BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF CHICAGO:

SECTION 1. Section 17-2-0300 ofthe Municipal Code of Chicago is hereby amended by deleting the language stricken through and by inserting the underscored language, as follows:

17-2-0300 Bulk and density standards.

(Omitted text is unaffected by this ordinance)

17-2-0307 Rear Yard Open Space. All development in RS, RT, RM4.5 and RM5 districts is subject lo the following minimum rear yard open space standards, except as expressly allowed under the townhouse development standards of Section 17-2-0500.

District Minimum Rear Yard Open Space (square feet per dwelling unit/% of lot area, whichever is greater) Minimum Dimension on Any Side (feet) Diameter (in feet) of a Circle That Must Fit Within Rear Yard Open Space
(Omitted text is unaffected by this ordinance)

(Omitted text is unaffected by this ordinance)

17-2-0309 Side Setbacks.

17-2-0309-A Standards. All development in R districts is subject tothe following minimum side setback standards, except as expressly allowed under the townhouse development standardsof Section 17-2-0500. Reversed corner lots are subject to Sec. 17-2-0309-B. (See Sec. 17-17-0308 for rules governing the measurement of side setbacks.)

District Minimum Side Setback
RSI Detached house Principal residential building: Combined total width of side setbacks must equal 30% of lot width with neither required setback less than 5 feet or 10% of lot width, whichever is greater Principal nonresidential building (e.g., religious assembly and s...