Separate Building Departments
The Smithtown Building Department does not accept applications for projects within the Village of the Branch, Village of Nissequogue or Head of the Harbor. These villages have their own Building Department:

Head of the Harbor
500 North Country Road
St. James, NY 11780

Ph: (631) 584-5550

Village of the Branch
12 Oxford Lane
P.O. Box 725
Smithtown, NY 11787

Ph: (631) 265-3315

Village of Nissequogue
P.O. Box 352
St. James, NY 11780

Ph: (631) 862-9424