In 2018, the planning department released a study of Demolitions and replacement homes. Page 4 contains a bar chart showing the relative sizes of Arlington’s zoning districts:
The folks in Arlington’s Department of Planning and Community Development were kind enough to provide me with a copy of the underlying numeric data. I’ll present that shortly, but for the moment, I’d like to make a proposition about zoning maps: that they are budgets given in acres rather than dollars. A zoning map takes a finite pool of resources (land) and allocates it among specific set of concerns (land uses).