Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter 5 - General Building Heights and Areas
Section 507 - UNLIMITED AREA BUILDINGS
Subsection 507.5 - Reduced open space
Universal Citation: 780 CMR MA Code of Regs 507.5
Current through Register 1531, September 27, 2024
The public ways or yards of 60 feet (18 288 mm) in width required in Sections 507.2, 507.3, 507.4, 507.6 and 507.11 shall be permitted to be reduced to not less than 40 feet (12 192 mm) in width provided all of the following requirements are met:
1. The reduced width shall not be allowed for more than 75 percent of the perimeter of the building.
2. The exterior walls facing the reduced width shall have a minimum fire-resistance rating of 3 hours.
3. Openings in the exterior walls facing the reduced width shall have opening protectives with a minimum fire protection rating of 3 hours.
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