For AI agents: read the machine-readable documentation index at /llms.txt or the single-file full reference at /llms-full.txt.
Form a Business

SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY

Municipal Code of Chicago tit. 14B, ch. 14B-4
in effect

Municipal Code of Chicago § 14B-4-403 High-rise buildings.

14B-4-403 High-rise buildings. The provisions of Section 403 of IBC are adopted by reference with the following modifications: 1. Revise item 2 in the exception to Section 403.1 to read: "2. Parking facilities in accordance with Section 406.9." 2. Delete items 4 and 5 in the exception to Section 403.1. 3. Revise item 1 (including the exception) in Section 403.2.1.1 to read: "1. For buildings not greater than 400 feet (122 m) in building height, the fire-resistance rating of the building elements in Type IA construction, other than the primary structural frame, shall be permitted to be reduced to the minimum fire-resistance ratings for the building elements in Type IB." 4. Revise item 2 in Section 403.2.1.1 to read: "2. In other than Group F, H, and S occupancies, the fire-resistance rating of the building elements in Type IB construction, other than the primary structural frame, shall be permitted to be reduced to the fire-resistance ratings in Type IIA." 5. Revise Section 403.2.1.2 by replacing "420 feet (128 m)" with "400 feet (122 m)." 6. Revise Section 403.2.3 by replacing "420 feet (128 m)" with "400 feet (122 m)." 7. Revise Table 403.2.4 by replacing "420 feet" with "400 feet." 8. Revise the exception to Section 403.3 to read: "Exception: An automatic sprinkler system shall not be required in parking facilities accordance with Section 406.9." 9. Delete Section 403.3.1 and its subsections. 10. Revise the title and first sentence of Section 403.3.2 to read: "403.3.2 Secondary water supply to required fire pumps. In buildings that are more than 300 feet (91.4 m) in building height, required fire pumps shall be supplied by connections to not fewer than two water mains located in different streets." 11. Revise the title and first sentence of Section 403.3.3 to read: "403.3.3 Secondary on-site water supply. An automatic secondary on-site water supply having a capacity not less than the hydraulically calculated sprinkler demand, including the hose stream requirement, shall be provided for high-rise buildings assigned to Seismic Design Category C or D as determined by Section 1613." 11.1. Add a new Section 403.3.5 to read: "403.3.5 Standpipe system. Where building height exceeds 500 feet (152.4 m), the connection to the source of supply shall be located in the lowest story of the building, and the piping system shall be completely looped, without dead ends." 12. Revise Section 403.4.4 to read: "403.4.4 Voice communication systems. Voice communication systems shall be provided in accordance with Section 907.2.12.2." 13. Delete Section 403.4.5. 14. Revise Section 403.4.6 to read: "403.4.6 Fire command. A fire command center complying with Section 911 shall be provided in a location acceptable to the fire code official." 15. Revise exception 1 to item 1 in Section 403.4.7 by deleting "or suite." 16. Revise Section 403.4.8.1, excluding the exception, to read: "403.4.8.1 Equipment room. If the standby power system or emergency power system includes a generator set inside a building, the generator set shall be located in a separate room enclosed with 2-hour fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both. System supervision with manual start and transfer features shall be provided at the fire command center." 17. Revise Section 403.4.8.2 to read: "403.4.8.2 Fuel line piping protection. Fuel lines supplying a generator set inside a building shall be of double wall pipe with leak detection provided in the interstitial space and separated from areas of the building other than the room the generator is located in by an assembly that has a fire-resistance rating of not less than 2 hours." 18. Revise Section 403.4.8.3 to read: "403.4.8.3 Standby power loads. The following are classified as standby power loads: 1. [Reserved.] 2. Elevators. 3. [Reserved.]" 19. Revise Section 403.4.8.4 to read: "403.4.8.4 Emergency power loads. The following are classified as emergency power loads: 1. Exit signs and means of egress illumination required by Chapter 10. 2. Elevator car lighting. 3. Voice communication systems. 4. Automatic fire detection systems. 5. Fire alarm systems. 6. Electrically powered fire pumps. 7. Power and lighting for the fire command center required by Section 403.4.6. 8. Sump pumps required by Section 403.4.9.3." 20. Add a new Section 403.4.8.5 to read: "403.4.8.5 Diesel generator. In high-rise buildings that are more than 400 feet (122 m) in building height, a diesel-driven generator with an on-premises fuel supply sufficient for not less than 4 hours of full-demand operation shall be provided to supply standby and emergency power loads. The fuel source for generators in high-rise buildings that are 400 feet (122 m) or less in building height shall be either diesel fuel or natural gas." 21. Add a new Section 403.4.9 to read: "403.4.9 Electrical equipment rooms. Electrical equipment rooms in high-rise buildings shall comply with Sections 403.4.9.1 through 403.9.3. 403.4.9.1 Main electrical service equipment. All main electrical service equipment shall be installed in vaults or outdoor locations. 403.4.9.2 Construction. Electrical equipment rooms shall be enclosed with fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both. The fire-resistance rating of the enclosure shall be in accordance with Section 110.26 of the Chicago Electrical Code. 403.4.9.3 Sump pump. Where electrical service equipment is installed in the lowest story, the electrical equipment room shall be provided with a sump pump." 22. Add a new exception to Section 403.5.1 to read: "Exception: In Group R-2 occupancies with an automatic smoke detection system that activates the occupant notification system in accordance with Section 907.5 installed throughout all interior corridors serving dwelling units, required interior exit stairways shall be separated by a distance not less than 15 feet (4572 mm)." 23. Delete Section 403.5.2. 24. Revise the second sentence of Section 403.5.3 to read: "Stairway doors that are locked from the stairway side shall be capable of being unlocked simultaneously, without unlatching, upon a signal from the fire command center and automatically, either by smoke detectors or sprinkler waterflow devices." 25. Revise Section 403.5.3.1 to read: "403.5.3.1 Stairway communication system. A two-way communication system shall be provided in accordance with Section 907.2.12.2.1." 26. Delete Section 403.5.4. 27. Delete Section 403.5.5. 28. Delete Section 403.5.6. 29. Revise Section 403.6 and its subsections to read: "403.6 Elevators. Elevator installation and operation in high-rise buildings shall comply with Chapter 30 and Section 403.6.1. 403.6.1 Fire service access elevator. A minimum of one fire service access elevator shall be provided in accordance with Section 3007. Each fire service access elevator shall have a capacity of not less than 3,500 pounds (1588 kg) and shall comply with Section 3002.4." (Amend Coun. J. 7-24-19, p. 3646, § 26; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 3)

Municipal Code of Chicago § 14B-4-404 Atriums.

14B-4-404 Atriums. The provisions of Section 404 of IBC are adopted by reference with the following modifications: 1. Revise the exception to Section 404.2 by deleting "approved." 2. Revise Section 404.3 to read: "404.3 Automatic sprinkler protection. An automatic sprinkler system shall be installed throughout the entire building. Exception: Where the ceiling of the atrium is more than 55 feet (16 764 mm) above the floor, sprinkler protection at the ceiling of the atrium is not required." 3. Revise exception 1 to Section 404.6 by replacing "smoke partition" with "smoke-resistive barrier." 4. Revise Section 404.7 to read: "404.7 Standby power. Equipment required to provide smoke control shall be provided with standby power."

Municipal Code of Chicago § 14B-4-405 Underground buildings.

14B-4-405 Underground buildings. The provisions of Section 405 of IBC are adopted by reference with the following modifications: 1. Revise exception 1 to Section 405.1 by replacing "One- and two-family dwellings" with "Group R-5 occupancies." 2. Delete Section 405.5 and its subsections. 3. Revise Section 405.7 and its subsections to read: "405.7 Means of egress. Means of egress shall be in accordance with Section 405.7.1. 405.7.1 Number of exits. Each floor level shall be provided with not fewer than two exits. Where compartmentation is required by Section 405.4, each compartment shall have not fewer than one vertical exit and not fewer than one exit access doorway into an adjoining compartment." 4. Revise Section 405.8 and its subsections to read: "405.8 Standby and emergency power. A standby power system complying with Section 2702 shall be provided for the standby power loads specified in Section 405.8.1. An emergency power system complying with Section 2702 shall be provided for the emergency power loads specified in Section 405.8.2. 405.8.1 Standby power loads. The following are classified as standby power loads: 1. Smoke control system. 2. [Reserved.] 3. Elevators, as required in Section 3003. 405.8.2 Emergency power loads. The following are classified as emergency power loads: 1. [Reserved.] 2. Fire alarm systems. 3. Automatic fire detection systems. 4. Elevator car lighting. 5. Means of egress and exit sign illumination as required by Chapter 10. 6. Fire pumps." (Amend Coun. J. 2-19-20, p. 14473, Art. II, § 8)

Municipal Code of Chicago § 14B-4-406 Motor-vehicle-related occupancies.

14B-4-406 Motor-vehicle-related occupancies. The provisions of Section 406 of IBC are adopted by reference with the following modifications: 1. In provisions adopted by reference, reset the following terms in italic type: "accessible"; "approved"; "building official"; "carport"; "open parking garage"; "private garage" and "repair garage." 1.1. Revise Section 406.1 by adding a final sentence to read: "Parking facilities shall also comply with Section 406.9." 1.2. Add a new Section 406.1.1 to read: "406.1.1 Covered loading spaces and driveways. Loading spaces and driveways which are used for the storage of unattended motor vehicles and extend more than 5 feet (1524 mm) into a building shall be classified as parking garages or carports. Exception: Interior parking and loading spaces that occupy no more than 20 percent of the overall floor area in a Group F or S occupancy and which are separated from other areas by a change in level, curb, guard or other fixed barrier." 2. Revise Section 406.2.4 by replacing "sloped" with "sloped at least one-quarter inch per foot (6.35 mm per 305 mm)." 3. Revise exception 1 to Section 406.2.4 to read: "1. Asphalt parking surfaces shall be permitted at ground level for open parking garages and carports." 4. Revise Section 406.2.8 to read: "406.2.8 Separation from other occupancies. Motor-vehicle-related occupancies shall be separated from other occupancies in the same building in accordance with Sections 406.2.8.1 through 406.2.8.4. 406.2.8.1 Private garages and carports. Private garages and carports shall be separated from other occupancies in the same building in accordance with Section 406.3.2. 406.2.8.2 Public garages. Public garages shall be separated from other occupancies in the same building with fire barriers and horizontal assemblies of noncombustible construction having a fire-resistance rating of not less than 4 hours. Exception: Where the building (including the parking garage) is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1, the required fire-resistance rating shall be not less than 3 hours. 406.2.8.3 Repair garages. Repair garages shall be separated from other occupancies in the same building with fire barriers and horizontal assemblies of noncombustible construction having a fire-resistance rating of not less than 4 hours. 406.2.8.4 Motor fuel-dispensing facilities. Motor fuel-dispensing facilities shall not be located in a building containing other uses or occupancies." 5. Revise Section 406.2.9.1, including its exception, to read: "406.2.9.1 Elevation of ignition sources. Equipment and appliances having an ignition source and located in private garages, repair garages, motor fuel- dispensing facilities and parking garages shall be elevated such that the source of ignition is not less than 18 inches (457 mm) above the floor surface on which the equipment or appliance rests. For the purpose of this section, rooms or spaces that are not part of the living space of a dwelling unit or sleeping unit and that communicate directly with a private garage through openings shall be considered to be part of the private garage." 6. Revise Section 406.3 and its subsections to read: "406.3 Private garages and carports. Private garages and carports shall comply with Sections 406.2 and 406.3. 406.3.1 Classification. Private garages and carports shall be classified as Group U occupancies. Exception: Private garages and carports on the same lot as a Group R-5 occupancy shall be classified as a Group R-5 occupancy. 406.3.2 Area. Each private garage or carport of Type I, II, IIIA or IV construction shall be not greater than 1,000 square feet (93 m 2 ) in gross floor area. Each private garage or carport of Type IIIB or VA construction shall be not greater than 800 square feet (74.3 m 2 ) in gross floor area. Each private garage or carport of Type VB construction shall be not greater than 600 square feet (55.7 m 2 ) in gross floor area. 406.3.3 Height. A building of Type IIB, IIIB, or VB construction containing a private garage shall not exceed one story or 12 feet (3658 mm) in building height. 406.3.4 Separation. Private garages and carports shall be separated from other buildings and occupancies in accordance with Sections 406.3.4.1 and 406.3.4.2. Carports may be separated from buildings in accordance with Section 406.3.4.3. 406.3.4.1 Detached private garages. Any exterior wall of a detached private garage which is located less than 6 feet (1829 mm) from another building on the same lot shall have a fire-resistance rating of not less than 1 hour. Openings shall be protected in accordance with Section 716. Exception: There may be one doorway not exceeding 21 square feet (1.95 m 2 ) in area, protected with a self-closing and self-latching door not less fire-resistive than a solid wood door 1 3/4 inches (44.5 mm) thick. 406.3.4.2 Attached private garages. Private garages and carports attached to another occupancy shall be separated from all other areas of the building by fire barriers and horizontal assemblies having a fire-resistance rating of not less than 1 hour. Door openings between a private garage and other occupancies shall be equipped with either solid wood doors or solid or honeycomb core steel doors not less than 1 3/8 inches (34.9 mm) in thickness, or doors in compliance with Section 716.2.2.1 with a fire protection rating of not less than 20 minutes. Doors shall be self-closing and self-latching. Only one attached private garage or carport shall be allowed per building. 406.3.4.3 Carports. A separation is not required between an enclosed occupancy and a carport, provided that the carport is entirely open on two or more sides and there are not enclosed areas above. 406.3.5 Automatic sprinkler system. Private garages located in a basement and with a capacity for four or more motor vehicles shall be equipped with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2. Exception: Where the private garage is open to the atmosphere for a height of not less than 18 inches (457 mm) around not less than 50 percent of its perimeter." 7. Delete the last sentence of Section 406.4. 8. Revise Section 406.4.3 to read: "406.4.3 Ramps. Vehicle ramps shall not be considered as vertical components of the means of egress connecting more than one story unless designated pedestrian paths are marked. Vehicle ramps that are utilized for vertical egress as well as for parking shall not exceed a slope of 1:15 (6.67 percent)." 8.1. Add new Sections 406.4.4 through 406.4.6 to read: "406.4.4 Construction. Public parking garages shall be of Type I, II, or IV construction. Public parking garages of Type IIB or IV construction shall only be permitted in single-story buildings. Floors supporting motor vehicles shall have a fire-resistance rating of at least 1 hour. 406.4.5 Height and area. Public parking garages shall be limited to the allowable heights and areas specified in Sections 504 and 506 for Group S-2 occupancies. Roof parking shall be allowed. 406.4.6 Vertical tiers. The number of vertical tiers of parking shall be limited to the values specified in Table 406.4.6. In the case of a parking garage having a continuous spiral floor, each 9 feet 6 inches (2896 mm) of height, or portion thereof, shall be considered to be a tier. TABLE 406.4.6 PUBLIC PARKING GARAGE HEIGHT (IN TIERS) TYPE OF CONSTRUCTION | HEIGHT (in tiers) Ramp access | Mechanical access TYPE OF CONSTRUCTION | HEIGHT (in tiers) Ramp access | Mechanical access IA | Unlimited | Unlimited IB | 3 tiers | 3 tiers a IIA | 3 tiers | 2 tiers a IIB | 1 tier | 1 tier a IV | 1 tier | 1 tier a For SI: 1 square foot = 0.0929 m2. a. One additional tier of mechanical access parking is allowed in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1." 9. Delete Section 406.5.1. 10. Revise Section 406.5.3 to read: "406.5.3 Mixed occupancies and uses. Mixed uses shall be allowed in the same building as an open parking garage subject to the provisions of Sections 406.2.8 and 508.1. Exception: The grade-level tier is permitted to contain an office, waiting and toilet rooms having a total combined area of not more than 1,000 square feet (93 m2). Such area need not be separated from the open parking garage." 11. Delete Sections 406.5.4 and 406.5.4.1 and Table 406.5.4 12. [Reserved.] 13. Delete Section 406.5.5. 14. Revise Section 406.5.6 by replacing "adjacent lot line" with "abutting property line." Revise Section 406.5.7 to read: "406.5.7 Means of egress. Where persons other than parking attendants are permitted, open parking garages shall meet the means of egress requirements of Chapter 10. Where persons other than parking attendants are not permitted, there shall be not fewer than two exit stairways. Each exit stairway shall be not less than 30 inches (762 mm) in width. Personnel lifts shall be permitted to be installed for use of employees only, provided that they are completely enclosed by noncombustible materials." 15. Revise Section 406.5.8 to read: "406.5.8 Fire protection systems. An open parking garage shall be equipped with a standpipe system as required by Section 905.3. An open parking garage shall be equipped with an automatic sprinkler system as required by Section 903.2.10." 16. Delete item 2 in Section 406.5.11. 16.1. Delete Section 406.6.1. 17. Revise the exception to Section 406.6.2 to read: "Exception: Mechanical ventilation shall not be required for private garages." 18. Revise Section 406.7.2 to read: "406.7.2 Canopies. Canopies under which fuels are dispensed shall have a clear, unobstructed height of not less than 13 feet 6 inches (4115 mm) to the lowest projecting element in the vehicle drive-through area. Canopies and their supports over pumps shall be of noncombustible materials or construction providing 1-hour fire resistance." 19. Revise Section 406.8.2.2 by replacing "an approved" with "a central." 20. Add a new Section 406.9 to read: "406.9 Parking facilities. Parking facilities shall comply with the provisions of Sections 406.2, 406.4 and 406.5 or 406.6, as modified by Section 406.9. 406.9.1 Occupancy. Buildings containing parking facilities shall not contain any other occupancy. Exceptions: 1. The grade-level tier is allowed to contain an office, waiting and toilet rooms having a total combined area of not more than 1,000 square feet (93 m 2). Such area need not be separated from the parking facility. 2. No more than 50 percent of the floor area of the first story above grade plane is allowed to contain Group A, B or M occupancies that exit directly to a public way, are provided with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 and are separated from the remainder of the structure by fire barriers and horizontal assemblies having a fire-resistance rating of not less than 3 hours. 906.9.2 Type of construction. Parking facilities shall be of Type IA construction. 906.9.3 Fire protection systems. An automatic sprinkler system is not required in parking facilities except where four or more levels are enclosed on all sides. Standpipes are not required in parking facilities, except a manual dry standpipe system shall be required in parking facilities that exceed 55 feet (16.7 m) in building height. A fire alarm system is not required in parking facilities that do not exceed 55 feet (16.7 m) in building height. 906.9.4 Emergency lighting. A System III emergency lighting system shall be provided in parking facilities in accordance with Article 700 of the Chicago Electrical Code." (Amend Coun. J. 7-24-19, p. 3646, § 27; Amend Coun. J. 2-19-20, p. 14473, Art. II, § 9; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 4; Amend Coun. J. 1-26-22, p. 43756, Art. II, § 3)

Municipal Code of Chicago § 14B-4-407 Group I-2.

14B-4-407 Group I-2. The provisions of Section 407 of IBC are adopted by reference with the following modifications: 1. Revise Section 407.3 to read: "407.3 Corridor wall construction. Corridor walls shall be constructed as smoke barriers in accordance with Section 709." 2. Revise Section 407.4 by deleting "Sections 403 and 404 of." 3. Revise Section 407.4.4.2 to read: "407.4.4.2 Separation. Care suites shall be separated from other portions of the building, including other care suites, by a smoke barrier complying with Section 709."

Municipal Code of Chicago § 14B-4-409 Motion picture projection rooms.

14B-4-409 Motion picture projection rooms. The provisions of Section 409 of IBC are adopted by reference with the following modification: 1. Revise Section 409.3.3 by replacing "approved" with "intended."

Municipal Code of Chicago § 14B-4-410 Stages, platforms and technical production areas.

14B-4-410 Stages, platforms and technical production areas. The provisions of Section 410 of IBC are adopted by reference with the following modifications: 1. Revise item 3 in the exception to Section 410.2.1 by deleting "approved." 2. Revise Section 410.2.2, including its exception, to read: "410.2.2 Technical production areas: galleries, gridirons and catwalks. Beams designed only for the attachment of portable or fixed theater equipment, gridirons, galleries and catwalks shall be constructed of noncombustible materials and a fire-resistance rating shall not be required. These areas shall not be considered to be floors, stories, mezzanines or levels in applying this code." 3. Revise Section 410.2.5 to read: "410.2.5 Proscenium curtain. Where a proscenium wall is required to have a fire-resistance rating, the stage opening shall be provided with a fire curtain complying with NFPA 80 or horizontal sliding doors complying with Section 716 having a fire protection rating of not less than 1 hour." 4. Revise Section 410.2.7.1 by deleting "approved." 5. Delete Section 410.2.7.2.

Municipal Code of Chicago § 14B-4-411 Special amusement buildings.

14B-4-411 Special amusement buildings. The provisions of Section 411 of IBC are adopted by reference with the following modifications: 1. Delete Section 411.5. 2. Revise Section 411.6 and its subsections to read: "411.6 Exit marking. Exit signs shall be installed at the required exit or exit access doorways of amusement buildings in accordance with this section and Section 1013. Directional exit markings, acceptable to the fire code official, shall be provided. Where mirrors, mazes or other designs are utilized that disguise the path of egress travel such that they are not apparent, listed low-level exit signs that comply with Section 1013, and directional path markings listed in accordance with UL 1994, shall be provided and located not more than 8 inches (203 mm) above the walking surface and on or near the path of egress travel. Such markings shall become visible in an emergency. The directional exit marking shall be activated by the automatic fire detection system and the automatic sprinkler system in accordance with Section 907.2.11."

Municipal Code of Chicago § 14B-4-412 Aircraft-related occupancies.

14B-4-412 Aircraft-related occupancies. The provisions of Section 412 of IBC are adopted by reference with the following modifications: 1. Delete Section 412.2.2.1. 2. Delete exception 2 to Section 412.2.3.2. 3. Revise exception 3.1 to Section 412.2.3.2 to read: "3.1. Voice communication systems control units." 4. Revise Section 412.3.2 to read: "412.3.2 Construction. Aircraft hangars shall be of Type I or II construction. Where hangars have basements, floors over basements shall be of Type IA construction and shall be made tight against seepage of water, oil or vapors. There shall not be openings or communication between basements and the hangar. Access to basements shall be from the exterior only." 5. Revise Table 412.3.6 by changing the values for Types III, IV and V construction to "NP" and adding a legend below the table stating "NP = Not permitted." 6. Delete Section 412.4 and its subsections. 7. Revise Section 412.5 by replacing "Section 416" with "the Chicago Fire Prevention Code." (Amend Coun. J. 10-7-20, p. 21791, Art. II, § 5)

Municipal Code of Chicago § 14B-4-413 Combustible storage.

14B-4-413 Combustible storage. The provisions of Section 413 of IBC are adopted by reference with the following modifications: 1. Revise the exception to Section 413.2 to read: "Exception: Neither fire-resistance-rated construction nor opening protectives are required in any of the following locations: 1. [Reserved.] 2. Group U occupancies. 3. Within individual dwelling units in Group R occupancies."

Municipal Code of Chicago § 14B-4-414 Hazardous materials.

14B-4-414 Hazardous materials. The provisions of Section 414 of IBC are adopted by reference with the following modifications: 1. Delete Section 414.1 and its subsections. 2. Delete the exception to Section 414.2. 3. Revise Table 414.2.2 by replacing each "1" in the last column with "2". 3.1. Revise Table 414.2.2 by replacing the rows for "below grade plane" as follows: Below grade plane | 1 2 Lower than 2 | 12.5 5 Not allowed | 2 1 Not allowed | 2 2 Not allowed 3.2. Delete the exception to Section 414.2.4. 4. Notwithstanding Section 14B-1-003(5), retain "International Fire Code" in footnote c to Table 414.2.5(1). 4.1. Revise Table 414.2.5(2) by deleting "Tables 5704.3.6.3(4) through 5704.3.6.3(8) and 5704.3.7.5.1 of". 5. Delete Sections 414.3 through 414.6 and their subsections. (Amend Coun. J. 2-19-20, p. 14473, Art. II, § 10; Amend Coun. J. 6-25-21, p. 32180, Art. II, § 4)

Municipal Code of Chicago § 14B-4-419 Live/work units.

14B-4-419 Live/work units. The provisions of Section 419 of IBC are adopted by reference with the following modifications: 1. Revise the exception to Section 419.1 to read: "Exception: Dwelling units or sleeping units that include workspace that is less than 20 percent of the area of the dwelling unit or 200 square feet (18.6 m2), whichever is greater, are permitted to be classified as dwelling units with accessory occupancies in accordance with Section 508.2." 2. Revise items 1 and 2 in Section 419.1.1 to read: "1. The live/work unit shall be not less than 800 square feet (74.3 m2) and not greater than 3,000 square feet (279 m2) in gross area. 2. The nonresidential area shall be not more than 50 percent of the area of each live/work unit." 3. Revise Section 419.2, excluding the exception, to read: "419.2 Occupancies. Live/work units shall be classified as a Group R-2 or R-5 occupancy. Separation requirements found in Sections 420 and 508 shall not apply within the live/work unit where the live/work unit is in compliance with Section 419. Nonresidential uses that would otherwise be classified as either a Group H or S occupancy shall not be permitted in a live/work unit. Live/work units shall not be used for the commercial production, sale or distribution of food or drink for consumption on- or off-premises." 4. Delete Section 419.5. 5. Revise Section 419.9 to read: "419.9 Plumbing facilities. The nonresidential area of the live/work unit shall be provided with minimum plumbing facilities as specified by the Chicago Plumbing Code, based on the function of the nonresidential area. Where the nonresidential area of the live/work unit is required to be accessible by Section 1107.6.2.1, the plumbing facilities and fixtures specified by the Chicago Plumbing Code shall be accessible. Plumbing facilities shall be allowed to serve both residential and nonresidential areas within a live/work unit." (Amend Coun. J. 2-19-20, p. 14473, Art. II, § 13)

Municipal Code of Chicago § 14B-4-420 Groups I-1, R-1, R-2, R-3, R-4 and R-5.

14B-4-420 Groups I-1, R-1, R-2, R-3, R-4 and R-5. The provisions of Section 420 of IBC are adopted by reference with the following modifications: 1. Revise Section 420.1 to read: "420.1 General. Occupancies in Groups I-1, R-1, R-2, R-3, R-4 and R-5 shall comply with the provisions of Sections 420.1 through 420.10 and other applicable provisions of this code." 2. Revise the exceptions to Section 420.2 to read: "Exception: Within Group R congregate living facilities, where sleeping units are arranged in suites containing no more than five sleeping units each, walls between the sleeping units and shared living spaces are not required to be constructed as fire partitions." 3. Delete the exception to Section 420.3. 4. Revise Section 420.4 by replacing "in accordance with" with "where required by." 5. Revise Section 420.5 by replacing "R-3 and R-4" with "R-3, R-4 and R-5." 6. Revise item 1 in Section 420.6.1 by replacing "15 net square feet (1.4 m2)" with "30 net square feet (2.8 m2)." 7. Revise item 5 in Section 420.8 by deleting "Section 505 of." 8. Delete Section 420.8.1. 9. Revise Section 420.9 to read: "420.9 Group R cooking facilities. In Group R occupancies, cooking appliances used for domestic cooking operations and located within a dwelling unit or sleeping unit shall be in accordance with the Chicago Mechanical Code. 420.9.1 Shared cooking facilities. In Group R occupancies, rooms or indoor spaces that contain cooking facilities with domestic cooking appliances shared by the occupants of more than one dwelling unit or sleeping unit shall be in accordance with all of the following criteria: 1. The types of domestic cooking appliances permitted shall be limited to ovens, cooktops, ranges, coffee makers, warmers and microwaves. 2. The space containing the domestic cooking facilities shall be arranged so as not to obstruct access to a required exit. 3. Domestic cooking hoods installed and constructed in accordance with section 505 of the Chicago Mechanical Code shall be provided over cooktops or ranges. 4. [Reserved.] 5. A timer shall be provided that automatically deactivates the cooking appliances within a period of not more than 120 minutes. 6. A portable fire extinguisher shall be provided. Installation shall be in accordance with Section 906 and the extinguisher shall be located within a 30-foot (9144 mm) distance of travel from each domestic cooking appliance." 10. Delete Section 420.10 and its subsections. (Amend Coun. J. 2-19-20, p. 14473, Art. II, § 14; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 6))

Municipal Code of Chicago § 14B-4-422 Ambulatory care facilities.

14B-4-422 Ambulatory care facilities. The provisions of Section 422 of IBC are adopted by reference with the following modifications: 1. In provisions adopted by reference, reset the following term in italic type: "ambulatory care facilities" and "fire alarm system." 2. Revise Section 422.3.1 by deleting "Sections 403 and 404 of."
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2662808Fetched: 10/24/2026

Starting a business in Illinois? Illinois LLC guide: costs and requirements