open-data-standards / permitdata.org

:hammer: A website for the BLDS Data Specification
https://permitdata.org
39 stars 7 forks source link

How does "ProjectID" differ from permit number #28

Closed mheadd closed 9 years ago

mheadd commented 9 years ago

Describe how this would be different to than the permit number or master permit number. Assuming this would be a "planning project" under which multiple permits could be issued for such as a Planned Unit Development or similar.

stevevance commented 9 years ago

Correct, @mheadd. A relevant example is how the City of Chicago issues business licenses.

Consider the Target department store. All Target stores in Chicago are (likely) corporate owned, and thus share a single account number. Each Target store then has a site number. Then each store has several licenses (pharmacy, maybe motor vehicle, liquor, and a regular ol' limited business license). Each of those licenses has its own number and that license is renewed the renewed license retains the license number but gets a unique license ID.

To recap, account_number>site_number>license_number>license_id.

So, in the case of building permits there could be a project identifier that is a grouping of permit identifiers. Chicago doesn't do this in its open data set (from the Socrata-powered portal) but it may have an internal identifier. Chicago Cityscape uses the address as the connection among permits.

aditya180 commented 9 years ago

Seems like a great explanation. Thanks for that @stevevance. We will leave ProjectID in. Thanks.