Nashua New Hampshire Building Permit Guide

Nashua building permits are required for additions, structural work, demolition, moving structures, regulated equipment, occupancy changes, and many plumbing, electrical, mechanical, and life-safety changes.

Permit takeaway

Nashua requires permits for work to construct additions, construct or alter structures, demolish or move structures, install or alter code-regulated equipment, and make changes of occupancy.

Zoning and placement

Residential permit applications and construction documents are reviewed by the Building Safety Department, while some projects may also need Planning, Zoning, DPW, Engineering, or other approvals.

Building and trade review

Ordinary repairs do not require a permit, but ordinary repairs do not include structural cuts, load-bearing changes, egress changes, or relocation of regulated plumbing, electrical, mechanical, gas, sewer, drainage, or vent systems.

Call before applying when

Call before applying if the work affects structural framing, egress, water heaters, boilers, furnaces, concealed piping, electrical wiring, occupancy, demolition, or a moved structure.

Documents to prepare

• Permit application
• One set of paper plans for residential permits
• Electronic copy if submitted by email
• Scope of work
• Trade details when applicable

Inspection planning

• Submit by email, mail, drop box, or in person
• Wait for plan review
• Keep permit available
• Schedule inspections
• Obtain final approvals before certificate of occupancy when required

Official sources

• Nashua When Do I Need a Permit
• Nashua Building Safety Department
• Nashua Building Permit FAQs

This guide is a planning summary. Always verify the current requirements with the local office before starting work.