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Building Confidence, Building Community.
APPENDIX B1 (DENVER)
R-X USE BUILDING CODE AMENDMENT
Code Sections/Tables/Figures Proposed for Revision:
Community Villages - Modify IBC Sections 302.1, 310.6, 903.2.8, 907.2.10.5. Add Section 429. Corresponding changes
will be required to Chapter 9 of the Denver amended IFC.
Note: If the proposal is for a new section, indicate (new).
1. Modify Section 302.1 Occupancy Classification adding Group R-X to item 8 Residential:
8. Residential (see Section 310): Groups R-1. R-2, R-3, R-4 and R-X.
2. Add Section 310.6 Residential Group R-X:
310.6 Residential Group R-X. A residential Group R-X occupancy is a group of two or more detached buildings,
each building consisting of a single sleeping unit, where the occupants are primarily permanent in nature. A Group
R-X sleeping unit shall not contain cooking facilities. Except as otherwise required by Section 429, residential Group
R-X occupancies shall be permitted to be constructed in accordance with the International Residential Code. Group
R-X buildings shall not be more than one story above grade plane in height. Basements are prohibited in Group R-X
buildings.
A detached community building with cooking facilities and a dining area is required to be provided with a Group
R-X occupancy project. Storage for each resident shall be provided within the sleeping unit, the shared community
building, or in a separate storage building.
3. Add Section 429 Residential Group R-X:
Section 429
Residential Group R-X
429.1 General. A Group R-X sleeping unit shall comply with Sections 429.2 through 429.16.
429.2 Individual sleeping unit floor area. The habitable floor area of an individual sleeping unit shall be not less
than 70 square feet. The minimum interior dimension of the habitable area of an individual sleeping unit shall not
be less than 7 feet. A Group R-X sleeping unit shall be 400 square feet or less in floor area, excluding lofts.
429.3 Maximum Occupant Load. The maximum occupant load within a sleeping unit shall be limited to one person
per 50 square feet of habitable floor area. Habitable floor areas shall have a ceiling height of not less than 7 feet 6
inches above the finished floor.
4294 Building Separation Distances. The minimum separation between individual sleeping units is 10 feet. The
separation distance between sleeping units and the community building or any storage building shall comply with
the provisions of Section 705.3. A sleeping unit and the community building shall not be considered portions of a
single building. A sleeping unit and a storage building shall not be considered portions of a single building. To apply
the provisions of Section 705.3 the sleeping units shall be considered a Group R-3 occupancy.
Exception:
Reduced building separation distances shall be considered when exterior walls complying with the
requirements of Section 705 are incorporated into the construction of the sleeping units. For the purpose
of applying the provisions of Section 705.3, the imaginary line between two sleeping units shall be centered
between the buildings.
In no case shall the separation between buildings be reduced to less than 5 feet. The minimum separation
distance between roof overhangs is 4 feet.
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