The simulation and prescriptive paths—paths 1 and 2 for Option 1: Daylight—are not very practical for project teams to follow unless the daylight analysis was already conducted as part of the initial design and construction of the building and the records of that analysis are readily available. 

Option 1, Path 2: Daylight Prescriptive

Option 1, Path 1: Daylight Simulation

Determine which compliance path makes sense for your building and team, from among the four options.

Teams are also required to provide comprehensive supporting documentation—such as daylight simulation results, floor plans noting daylight measurements, and sectional drawings showing direct "line of sight" to views to substantiate the project's submission. See detailed documentation requirements for each path in further detail below.

All options for earning IEQc2.4 require the project team to provide the total area of regularly occupied spaces, as well as the total area of compliant regularly occupied spaces in the building. Calculating total areas requires assessment against the credit requirements and measurements for each individual regularly occupied space, which can be a huge effort. Regularly occupied spaces are those in which workers are seated or standing as they work during the day.

Buildings originally designed to maximize daylight and views have a better chance of documenting compliance with this credit, though the requirements are still extensive. If your project building was not designed with these goals in mind, you are less likely to be able to meet the credit requirements.  

This credit can be very difficult for projects to pursue because of the demanding documentation requirements. 

Your project building can automatically earn this credit if it previously earned a credit related to Daylight and Views through LEED for New Construction, LEED for Schools, or both LEED for Core and Shell and LEED for Commercial Interiors.

Determine whether EBOM IEQc2.4 is worth pursuing for your project building.