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Section 1108 Dwelling Units and Sleeping Units

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1108.1 General
In addition to the other requirements of this chapter, occupancies having dwelling units or sleeping units shall be provided with accessible features in accordance with this section.
1108.2 Design
Dwelling units and sleeping units that are required to be Accessible units, Type A units and Type B units shall comply with the applicable portions of Chapter 11 of ICC A117.1. Units required to be Type A units are permitted to be designed and constructed as Accessible units. Units required to be Type B units are permitted to be designed and constructed as Accessible units or as Type A units.
1108.3 Accessible Spaces
Rooms and spaces available to the general public or available for use by residents and serving Accessible units, Type A units or Type B units shall be accessible. Accessible spaces shall include toilet and bathing rooms, kitchen, living and dining areas and any exterior spaces, including patios, terraces and balconies.
Exceptions:
  1. Stories and mezzanines exempted by Section 1108.4.
  2. Recreational facilities in accordance with Section 1111.2.
  3. Exterior decks, patios or balconies that are part of Type B units and have impervious surfaces, and that are not more than 4 inches (102 mm) below the finished floor level of the adjacent interior space of the unit.
1108.4 Accessible Route
Not fewer than one accessible route shall connect accessible building or facility entrances with the primary entrance of each Accessible unit, Type A unit and Type B unit within the building or facility and with those exterior and interior spaces and facilities that serve the units.
Exceptions:
  1. If due to circumstances outside the control of the owner, either the slope of the finished ground level between accessible facilities and buildings exceeds one unit vertical in 12 units horizontal (1:12), or where physical barriers or legal restrictions prevent the installation of an accessible route, a vehicular route with parking that complies with Section 1106 at each public or common use facility or building is permitted in place of the accessible route.
  2. In Group I-3 facilities, an accessible route is not required to connect stories or mezzanines where Accessible units, all common use areas serving Accessible units and all public use areas are on an accessible route.
  3. In Group R-2 facilities with Type A units complying with Section 1108.6.2.2.1, an accessible route is not required to connect stories or mezzanines where Type A units, all common use areas serving Type A units and all public use areas are on an accessible route.
  4. In other than Group R-2 dormitory housing provided by places of education, in Group R-2 facilities with Accessible units complying with Section 1108.6.2.3.1, an accessible route is not required to connect stories or mezzanines where Accessible units, all common use areas serving Accessible units and all public use areas are on an accessible route.
  5. In Group R-1, an accessible route is not required to connect stories or mezzanines within individual units, provided the accessible level meets the provisions for Accessible units and sleeping accommodations for two persons minimum and a toilet facility are provided on that level.
  6. In congregate residences in Groups R-3 and R-4, an accessible route is not required to connect stories or mezzanines where Accessible units or Type B units, all common use areas serving Accessible units and Type B units and all public use areas serving Accessible units and Type B units are on an accessible route.
  7. An accessible route between stories is not required where Type B units are exempted by Section 1108.7.
1108.5 Group I
Accessible units and Type B units shall be provided in Group I occupancies in accordance with Sections 1108.5.1 through 1108.5.5.
1108.5.1 Group I-1
Accessible units and Type B units shall be provided in Group I-1 occupancies in accordance with Sections 1108.5.1.1 and 1108.5.1.3.
1108.5.1.1 Accessible Units
In Group I-1, Condition 1, at least 4 percent, but not less than one, of the dwelling units and sleeping units shall be Accessible units. Accessible dwelling units and sleeping units shall be dispersed among the various classes of units.
Exceptions:
  1. Water closets shall not be required to comply with ICC A117.1 where such water closets comply with Section 1110.2.2, in not more than 50 percent of the Accessible units.
  2. Roll-in-type showers shall not be required to comply with ICC A117.1 where roll-in-type showers comply with Section 1110.2.3, in not more than 50 percent of the Accessible units.
1108.5.1.2 Accessible Units in Group I-1, Condition 2
In Group I-1, Condition 2, at least 10 percent, but not less than one, of the dwelling units and sleeping units shall be Accessible units. Accessible dwelling units and sleeping units shall be dispersed among the various classes of units.
Exceptions:
  1. Water closets shall not be required to comply with ICC A117.1 where such water closets comply with Section 1110.2.2, in not more than 50 percent of the Accessible units.
  2. Roll-in-type showers shall not be required to comply with ICC A117.1 where roll-in-type showers comply with Section 1110.2.3, in not more than 50 percent of the Accessible units.
1108.5.1.3 Type B Units
Exception: The number of Type B units is permitted to be reduced in accordance with Section 1108.7.
1108.5.2 Group I-2 Nursing Homes
Accessible units and Type B units shall be provided in nursing homes of Group I-2, Condition 1 occupancies in accordance with Sections 1108.5.2.1 and 1108.5.2.2.
1108.5.2.1 Accessible Units
At least 50 percent but not less than one of each type of the dwelling units and sleeping units shall be Accessible units.
Exceptions:
  1. Water closets shall not be required to comply with ICC A117.1 where such water closets comply with Section 1110.2.2, in not more than 90 percent of the Accessible units.
  2. Roll-in-type showers shall not be required to comply with ICC A117.1 where roll-in-type showers comply with Section 1110.2.3, in not more than 90 percent of the Accessible units.
1108.5.2.2 Type B Units
Exception: The number of Type B units is permitted to be reduced in accordance with Section 1108.7.
1108.5.3 Group I-2 Hospitals
Accessible units and Type B units shall be provided in general-purpose hospitals, psychiatric facilities and detoxification facilities of Group I-2 occupancies in accordance with Sections 1108.5.3.1 and 1108.5.3.2.
1108.5.3.1 Accessible Units
At least 10 percent, but not less than one, of the dwelling units and sleeping units shall be Accessible units.
Exception: Entry doors to Accessible dwelling units or sleeping units shall not be required to provide the maneuvering clearance beyond the latch side of the door.
1108.5.3.2 Type B Units
Exception: The number of Type B units is permitted to be reduced in accordance with Section 1108.7.
1108.5.4 Group I-2 Rehabilitation Facilities
In hospitals and rehabilitation facilities of Group I-2 occupancies that specialize in treating conditions that affect mobility, or units within either that specialize in treating conditions that affect mobility, 100 percent of the dwelling units and sleeping units shall be Accessible units.
Exceptions:
  1. Water closets shall not be required to comply with ICC A117.1 where such water closets comply with Section 1110.2.2, in not more than 50 percent of Accessible units.
  2. Roll-in-type showers shall not be required to comply with ICC A117.1 where roll-in-type showers comply with Section 1110.2.3, in not more than 50 percent of Accessible units.
1108.5.5 Group I-3
Accessible units shall be provided in Group I-3 occupancies in accordance with Sections 1108.5.5.1 through 1108.5.5.3.
1108.5.5.1 Group I-3 Sleeping Units
In Group I-3 occupancies, at least 3 percent of the total number of sleeping units in the facility, but not less than one unit in each classification level, shall be Accessible units.
1108.5.5.2 Special Holding Cells and Special Housing Cells or Rooms
In addition to the Accessible units required by Section 1108.5.5.1, where special holding cells or special housing cells or rooms are provided, at least one serving each purpose shall be an Accessible unit. Cells or rooms subject to this requirement include, but are not limited to, those used for purposes of orientation, protective custody, administrative or disciplinary detention or segregation, detoxification and medical isolation.
Exception: Cells or rooms specially designed without protrusions and that are used solely for purposes of suicide prevention shall not be required to include grab bars.
1108.5.5.3 Medical Care Facilities
Patient sleeping units or cells required to be Accessible units in medical care facilities shall be provided in addition to any medical isolation cells required to comply with Section 1108.5.5.2.
1108.6 Group R
Accessible units, Type A units and Type B units shall be provided in Group R occupancies in accordance with Sections 1108.6.1 through 1108.6.4.
1108.6.1 Group R-1
Accessible units and Type B units shall be provided in Group R-1 occupancies in accordance with Sections 1108.6.1.1 and 1108.6.1.2.
1108.6.1.1 Accessible Units
Accessible dwelling units and sleeping units shall be provided in accordance with Table 1108.6.1.1. On a multiple-building site, where structures contain more than 50 dwelling units or sleeping units, the number of Accessible units shall be determined per structure. On a multiple-building site, where structures contain 50 or fewer dwelling units or sleeping units, all dwelling units and sleeping units on a site shall be considered to determine the total number of Accessible units. Accessible units shall be dispersed among the various classes of units.
TABLE 1108.6.1.1
TOTAL NUMBER OF UNITS PROVIDED MINIMUM REQUIRED NUMBER OF ACCESSIBLE UNITS WITHOUT ROLL-IN SHOWERS MINIMUM REQUIRED NUMBER OF ACCESSIBLE UNITS WITH ROLL-IN SHOWERS TOTAL NUMBER OF REQUIRED ACCESSIBLE UNITS
1 to 25 1 0 1
26 to 50 2 0 2
51 to 75 3 1 4
76 to 100 4 1 5
101 to 150 5 2 7
151 to 200 6 2 8
201 to 300 7 3 10
301 to 400 8 4 12
401 to 500 9 4 13
501 to 1,000 2% of total 1% of total 3% of total
Over 1,000 20, plus 1 for each 100, or fraction thereof, over 1,000 10 plus 1 for each 100, or fraction thereof, over 1,000 30 plus 2 for each 100, or fraction thereof, over 1,000
1108.6.1.2 Type B Units
Exception: The number of Type B units is permitted to be reduced in accordance with Section 1108.7.
1108.6.2 Group R-2
Accessible units, Type A units and Type B units shall be provided in Group R-2 occupancies in accordance with Sections 1108.6.2.1 through 1108.6.2.3.
1108.6.2.1 Live/Work Units
In live/work units constructed in accordance with Section 508.5, the nonresidential portion is required to be accessible. In a structure where there are four or more live/work units intended to be occupied as a residence, the residential portion of the live/work unit shall be a Type B unit.
Exception: The number of Type B units is permitted to be reduced in accordance with Section 1108.7.
1108.6.2.2 Apartment Houses, Monasteries and Convents
Type A units and Type B units shall be provided in apartment houses, monasteries and convents in accordance with Sections 1108.6.2.2.1 and 1108.6.2.2.2. Bedrooms in monasteries and convents shall be counted as units for the purpose of determining the number of units. Where the bedrooms are grouped in sleeping units, only one bedroom in each sleeping unit shall count toward the number of required Type A units.
1108.6.2.2.1 Type A Units
In Group R-2 occupancies containing more than 20 dwelling units or sleeping units, at least 2 percent but not less than one of the units shall be a Type A unit. All Group R-2 units on a site shall be considered to determine the total number of units and the required number of Type A units. Type A units shall be dispersed among the various classes of units.
Exceptions:
  1. The number of Type A units is permitted to be reduced in accordance with Section 1108.7.
  2. Existing structures on a site shall not contribute to the total number of units on a site.
1108.6.2.2.2 Type B Units
Exception: The number of Type B units is permitted to be reduced in accordance with Section 1108.7.
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