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// CODE SNIPPET

202.5.4 Alternative Requirements for Qualified Historic Buildings

2018 Illinois Accessibility Code > 2 Scoping Requirements > 202 Existing Buildings and Facilities > 202.5 Alterations to Qualified Historic Buildings and Facilities > 202.5.4 Alternative Requirements for Qualified Historic Buildings
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The alternative requirements in 202.5.4.1 through 202.5.4.15 may be substituted for the applicable requirements of Chapter 2 when a qualified historic building undergoes alterations.

202.5.4.1 Changes in Level

Changes of level may be accommodated by ramps having the following maximum slopes:
  1. A slope between 1:10 and 1:12 is allowed for a maximum rise of 6 inches (1830 mm).
  2. A slope between 1:8 and 1:10 is allowed for a maximum rise of 3 inches (915 mm).
  3. A slope between 1:6 and 1:8 is allowed for a maximum rise of 2 inches (610 mm).
  4. Where access to any space in a qualified historic building will be limited to controlled groups with assigned tour guides, changes in level as provided in this subsection 202.5.4.1(1) may be accommodated by means of a detachable ramp.

202.5.4.2 Exemptions for Controlled Groups With Assigned Tour Guides

Where access to any space in a qualified historic building will be limited to controlled groups with assigned tour guides, requirements of the following Sections are waived for that space.
  1. 404, Doors, except minimum widths as noted in 202.5.4.5 below, and threshold heights in 404.2.5;
  2. 225 and 811, Storage;
  3. 205 and 309, Controls and Operating Mechanisms, where not intended to be operated by the general public;
  4. 705, Detectable Warnings; and
  5. 216 and 703, Signage.

202.5.4.3 Exemption for Controlled Groups and Door Attendants

Where access to any space in a qualified historic building will be limited to controlled groups with assigned tour guides, or where a full-time door attendant or concierge is provided at the door within visual and audible communication range, there are no special requirements for door hardware or operation.

202.5.4.4 Door Hardware

The addition of adapter lever handles that retain the existing hardware will be considered to meet the Secretary of the Interior's Standards for Rehabilitation as they do not result in the removal of any historic features from the structure.

202.5.4.5 Door Width

Minimum clear door opening width for a single door or the single active leaf of a pair of doors shall meet the requirements of 404.2.3. When the alteration of an existing historic door does not meet the Secretary of the Interior's Standards for Rehabilitation, a lesser dimension may be considered to be accessible if it provides the highest level of access within the limited dimensions available. Examples of acceptable methods of providing improved access while maintaining the historic door include the following:
  1. Maintain the door opening area free of any obstructions so that the clear opening can be measured with the door in a 180 degree position rather than the 90 degree position.
  2. Reverse the swing of the door.
  3. Remove or alter the side door stop(s).
  4. Replace the existing hinges with offset hinges.
Example: A historically significant door is only 30 inches (9140 mm) wide. Because the door, associated transom and surrounding trim are all significant features of the building, altering the opening and replacing the door does not meet the Secretary of the Interior's Standards for Rehabilitation. The installation of off-set hinges and the replacement of the door stops creates a clear opening of 29-1/2 inches (8990 mm), but otherwise retains all of the historic features of the building. In these circumstances, the modified front entry door would be considered to be accessible.

202.5.4.6 Width of Pairs of Doors

For pairs of doors where an individual leaf does not provide the minimum clear opening, the following options provide improved access:
  1. Activating the second leaf; or
  2. Adding a power operator that activates both leaves.

202.5.4.7 Entrances

If it is determined that no entrance used by the public can comply with 206.4 without threatening or destroying the historic character of the building or facility, then access at any entrance not used by the general public, but open (unlocked) with directional signage at the primary entrance may be used. The accessible entrance shall also have a notification system. Where security is a problem, remote monitoring may be used.

202.5.4.8 Accessible Routes From Entrances

Accessible routes from an accessible entrance to all publicly used spaces on at least the level of the accessible entrance shall be provided. Access shall be provided to all levels of a building or facility in compliance with 207.1 and Chapter 4 whenever practical, and where such access would not threaten or destroy the historic character of the building or facility.

202.5.4.9 Stairs

Where the alterations to a historic stair do not meet the Secretary of the Interior's Standards for Rehabilitation (as determined by the Illinois State Historic Preservation Office), the requirements of 504 are waived.

Example: The addition of a modern complying handrail on the wall side of a historic stair may meet the minimum requirement for a necessary handrail without alterations to the historic railing and balustrade, thus meeting the Secretary of the Interior's Standards for Rehabilitation. In many instances it may also be possible to install a new code compliant handrail on top of the historic railing and balustrade.

202.5.4.10 Stair Handrail Extensions

Full extension of stair handrails shall not be required in alterations where such extensions would be hazardous or impossible due to plan configuration.

202.5.4.11 Elevator Doors

If safety door edge is provided in existing automatic elevators, then the automatic door protective and reopening devices as required in 407.3.3 may be omitted.

202.5.4.12 Elevator Dimensions

Where existing shaft or structural elements prohibit strict compliance with the minimum dimensions of the elevator cars as required in 407.4.1, then the minimum floor area dimensions may be reduced to no less than 48 inches by 48 inches (1220 mm by 1220 mm).

202.5.4.13 Assembly Seating Dispersion

In alterations to qualified historic buildings where it is technically infeasible to disperse seating throughout an assembly area, the seating may be located in collected areas. Seating shall adjoin an accessible route which also serves as a means of emergency egress.

202.5.4.14 Elevator Features

Where historic elevator features such as call buttons, hall lanterns, and control panels cannot comply with 407, the addition of new compliant controls that retain the existing will be considered to meet the Secretary of the Interior's Standards for Rehabilitation as they do not result in the removal of the historic elevator features.

202.5.4.15 Signage

Where historic signage including exit signs, directional, informational, and permanent room signage, cannot comply with 216 and 703, the addition of new compliant signage that retains the existing will be considered to meet the Secretary of the Interior's Standards for Rehabilitation as it does not result in the removal of the historic signage.

202.5.4.16 Site Arrival Points

At least one accessible route from a site arrival point to an accessible entrance shall be required.

Related Code Sections


202.5.4 Scoping Requirements, Alternative Requirements for Qualified Historic Buildings
The alternative requirements in 202.5.4.1 through 202.5.4.15 may be substituted for the applicable requirements of Chapter 2 when a qualified ...
2018 Illinois Accessibility Code > 2 Scoping Requirements > 202 Existing Buildings and Facilities > 202.5 Alterations to Qualified Historic Buildings and Facilities > 202.5.4 Alternative Requirements for Qualified Historic Buildings
202.5.4.11 Scoping Requirements, Elevator Doors
If safety door edge is provided in existing automatic elevators, then the automatic door protective and reopening devices as required in 407.3.3 may ...
2018 Illinois Accessibility Code > 2 Scoping Requirements > 202 Existing Buildings and Facilities > 202.5 Alterations to Qualified Historic Buildings and Facilities > 202.5.4 Alternative Requirements for Qualified Historic Buildings > 202.5.4.11 Elevator Doors
202.5.4.12 Scoping Requirements, Elevator Dimensions
Where existing shaft or structural elements prohibit strict compliance with the minimum dimensions of the elevator cars as required in 407.4.1 ...
2018 Illinois Accessibility Code > 2 Scoping Requirements > 202 Existing Buildings and Facilities > 202.5 Alterations to Qualified Historic Buildings and Facilities > 202.5.4 Alternative Requirements for Qualified Historic Buildings > 202.5.4.12 Elevator Dimensions
202.5.4.13 Scoping Requirements, Assembly Seating Dispersion
In alterations to qualified historic buildings where it is technically infeasible to disperse seating throughout an assembly area, the seating may ...
2018 Illinois Accessibility Code > 2 Scoping Requirements > 202 Existing Buildings and Facilities > 202.5 Alterations to Qualified Historic Buildings and Facilities > 202.5.4 Alternative Requirements for Qualified Historic Buildings > 202.5.4.13 Assembly Seating Dispersion
202.5.4.16 Scoping Requirements, Site Arrival Points
At least one accessible route from a site arrival point to an accessible entrance shall be required ...
2018 Illinois Accessibility Code > 2 Scoping Requirements > 202 Existing Buildings and Facilities > 202.5 Alterations to Qualified Historic Buildings and Facilities > 202.5.4 Alternative Requirements for Qualified Historic Buildings > 202.5.4.16 Site Arrival Points
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