Contextual district

Contextual districts are zoning districts whose bulk rules are written to reproduce the built character of the neighborhoods they cover: required street walls within a set base-height band, hard maximum building heights, and lot-coverage rules that together yield buildings shaped like their neighbors. They contrast with non-contextual districts, whose more permissive envelopes — often governed by sky exposure planes or height-factor rules — allow towers and varied forms.

In the district naming convention, a letter suffix on the district code typically marks a contextual variant, each suffix carrying its own envelope. For analysis, contextual status changes the shape of the buildability question: massing under a contextual envelope is mostly arithmetic on prescribed heights, while non-contextual massing is a geometry exercise with more design freedom.