Date
Inquiry

We use Case 2 for compliance. According to our calculation for this credit, we think that we need to provide 13 showers. Question 1: How are the showers required to be split between male and female, if not unisex? We split 50:50. Question 2: The building has 617,149 sqft. This number includes all floors, including two roof floors with technical rooms and the lower levels including one floor with only technical spaces. To determine default occupancy count, we divided the building\'s gross square feet by 250 (general office). Do we need to apply this rate to the whole building or can we first subtract the square footage of main technical rooms and/or of complete technical floors (64,600 sqft)? Question 3: Our building is a mixed use building with one multipurpose room and foyer on a lower level, and a small caf

Ruling

The project is seeking clarification for how to determine the anticipated occupancy of their project for the purposes of Sustainable Sites credit 4.2.The CS Appendix 1 Default Occupancy Counts is required to be used for the project types listed for any CS project that does not know actually occupancy numbers. The numbers are based on average gross square foot per occupant of buildings of that type and include support spaces such as lobbies, mechanical room, storage and other non-rentable spaces. Large, unoccupied areas that are not typical of most projects, such as below grade parking garages, may be excluded from the gross square footage for the purpose of the occupancy calculations. However, projects which exclude any portion of the gross square footage must provide a supplemental narrative stating the portion of the project and providing an explanation on why this area is not typical for most projects of that type, and why the area should be excluded from the calculation. For mixed use projects, the project should first determine the percentage of the building that is each use. Then the gross building area should be divided up based on those percentages, this will allocate common areas, such as foyers and mechanical spaces, proportionally between the different uses. The project should note that the Appendix 3 LEED-CS Project Scope Checklist, which is required to be submitted for certification and precertification, can assist with this calculation. For building types that are not covered under the Appendix 1 defaults, the project must determine the typical gross square foot per occupant for the building type to use. For example, this can be done through case study of similar type projects, discussions with tenants, or research of publish industry standards. It may also be noted, that the LEED 2009 Reference Guide for Green Building Design and Construction Appendix has an expanded table with additionally occupancies. This table is not required to be used by LEED-CS 2.0 projects, however may be used in lieu of project determined defaults if the project chooses. For restaurants, the default is for FTE is 435 gross square foot per occupant and 95 gross square foot per occupant for transient visitors. There is a known template error for this credit. The calculations provided have been done correctly, and the project should attach the supplemental calculations as shown above for certification. For projects that have an odd number of minimum required showers that wish to divide them between genders, such as the 13 total or 6.5 per gender for this project, the project can either provide an additional shower, 14 total or 7 per gender, therefore meeting the minimum requirement for each gender or can provide a unisex shower that would be usable by either gender. Applicable Internationally.

Internationally Applicable
On
Campus Applicable
Off
Credits