City of San Mateo Law Library
City of San Mateo Municipal Code.

27.04.143 DAYLIGHT PLANE.

"Daylight plane" means an inclined plane, beginning at a stated height above grade and extending into the site at a stated upward angle to the horizontal, which may limit the height or horizontal extent of structures at any specific point on the site where the daylight plane is more restrictive than the height limit or the minimum yard applicable at such point on the site.