Story poles (temporary frame) are three-dimensional, full-scale, silhouette structures that outline the
location, bulk and mass that a proposed structure will occupy on a site. They are required
for certain design review applications and may be requested for any discretionary review
where warranted by visual impact or location issues. Story poles allow Planning staff,
neighbors and others to assess the location and general massing of a proposed building
from various vantage points. More (Santa Clara County document)