The Office of Planning & Development has some good links that you may find useful. A few of the following came from either them or NHMA.
Administrative Decision Appeal
Conceptual Consultation Application
Conditional Use Permit Application
Excavation Site Plan Regulations
Floodplain Management Ordinance
Non-Residential Site Plan Application
Non-Residential Site Plan Regulations
Non-Residential Business Sign Application
Non-Residential Business Sign Ordinance
Rules of Procedure - Planning Board
Subdivision Application & Checklist
Tax Maps - Interactive (NRPC Parcel Viewer)
ZBA Application & Instructions
All Master Plan files are on the ”Documents” page under the “Master Plan” tab.