I just came across this information the other day and thought I’d share it with you. When is a Building Permit Required? …in Longmont? Check out this document that comes directly from the Longmont’s Chief Building Official Chris Allison. You can contact his office at 303-651-8332 with questions. Who knew you had to get a building permit to install a sprinkler system? Also, if you can call here to see if a building permit has been issued for an improvement on a house your client is buying or selling…like a basement finish. Thank you Bron Schuetze from Keller Williams 1st Realty for the information.