Window in the interiors

Unfortunately, the prescriptive daylight zone credit Option 2 is designed for simple geometries and does not allow for interior areas to borrow light from adjacent perimeter spaces as a means of calculating the interior room’s daylight level. Depending on your floor plan you could do the calculation for the whole space in question by combining the square footages of both the interior room + the perimeter space with glazing. If these areas do not meet the credit requirements you could approach the credit via Option 4 with either a simulation (Option 1) or actual measurement (Option 3) for these areas.