Building permit
RESIDENTIAL ADDITION
21 MILLAN AVE
Filed May 8, 2026·Smithtown· OPEN
Front porch addition 351 sq. ft, first floor addition 186 sq. ft, side porch addition 35 sq. ft, Second floor addition 1629 sq. ft, second floor deck 275 sq. ft, attic space addition 58 sq. ft, with CAC (1) plumbing and electric to existing one family dwelling.
General contractor · Electrical · Carpentry / framing
Townline watches town and county permit feeds so new filings like this reach you the day they land — matched to your trades, with owner and applicant contacts on Pro.
More permits in Suffolk County, NY· General contractor permits· Electrical permits· Carpentry / framing permits