Core and Shell projects must demonstrate that their base building provides all the potential and flexibility for a fit-out of multiple comfort controls that regulate at least one of the four comfort factors. For example, a system without the potential for a lot of individual controls may not work for an open office but may work for a convention center. 

If less than 50% of occupants have access to operable windows, add more operable windows, adjust the layout, or add ducts, baseboards or diffusers with controls to add individual comfort controls. Run calculations again and redesign till 50% of people have access to the controls. 

How many people per control? Even though the credit calls for individual comfort controls, projects often earn this credit by grouping occupants around a single operable window. Similarly, a single mechanical system control can serve up to two occupants, contributing to the 50% credit threshold.

How many people per operable window? If using operable windows, locate as many people as possible close to them. Although strictly speaking it may make sense to count one person as needing one operable window, the experience of the LEEDuser team is that the credit has been approved by counting multiple people sitting close to a window as long as a person is within a 20-foot depth and a 10-foot length from one. The operable portion of the window must also be at least 4% of the size of the floor area of the space accessible to a given window, per ASHRAE 62.1-2007.

Each multi-occupant space should have at least one comfort control that regulates air temperature, radiant temperature, humidity, or air speed in that room. 

A multi-occupant space is space for group interactions, like classrooms, conference rooms, cafeterias, lobbies, warehouse loading areas, theaters, break rooms, commercial kitchens, retail stores, and exhibit spaces that expect large number of people to gather. 

Develop a list and number of all occupied spaces in the building, noting multi-occupant spaces. The number of individual occupant spaces and multi-occupant spaces should be the same between IEQc6.1 and IEQc6.2.

Careful attention to building layout can help keep costs low. For example, mechanical rooms adjacent to classrooms require STC 60—an expensive wall to build, and better avoided through changing the layout. Locate classrooms and core learning spaces away from noisy exterior spaces such as athletic fields, roadways, and parking lots, as well as noisy interior spaces such as mechanical rooms, bathrooms, kitchens, music rooms, cafeterias, and gymnasiums. 

The STC rating requirement is guided by ANSI standard S12.60-2002, which requires partition assemblies (including doors, walls, ceilings and floors) to have a specified STC rating based on the noise level coming from the adjacent space. In many cases, each wall in a classroom will have a different STC rating requirement due to different adjacent spaces. 

Determine a layout and envelope design that will reduce exterior and interior adjacent noise levels, in order to minimize the need for wall, ceiling, and floor assemblies to have high STC ratings. Review ANSI standard S12.60-2002 for help.