A Grid Overlay is useful for visualizing residences that require special consideration, restrictions, or protections. Such a Grid Overlay can be created by testing which locations have a defined size for residences.
Switch to the "Legend" tab, and activate the "custom legend".
Remove all legend entries of the Combo Overlay.
Add an entry, configured so that: Name: Not residences value: 0 Color: black
Add an entry, configured so that: Name: Residences value: 1 Color: lightgray
Notes
Additional residence categories, such as "senior housing" and "student housing", can be added using the same method. To add them, add 2 more Average Overlays with SENIOR_UNIT_SIZE_M2 and STUDENT_UNIT_SIZE_M2 respectively, add then to inputs D and E of the Combo Overlay, and expand the formula to include the D and E parameters: GT(ADD(A,B,C,D,E),0)