Building Safety Department

The Building Safety Department accepts permit applications for review and approval of construction documents including building, electrical, mechanical, and plumbing plans. The Department is responsible for conducting inspections on permitted work.

Permits Submittals

Residential permit applications and (2) sets of plans can be submitted electronically by email to, by mail, by placing applications into the after-hours drop box located at the Elm Street entrance to City Hall or in person at City Hall. Payments for permit fees will continue to be by mail, drop box, by credit card over the phone or in person at City Hall.

Commercial permit applications require three (3) plan sets to be submitted to the Department of Building Safety. Plan submittals can be submitted with 3 sets of paper plans by mail, by placing applications into the after-hours drop box located at the Elm Street entrance to City Hall or in person at City Hall. Commercial plan submittals can also be by two (2) sets of paper plans submitted and one (1) set electronically by email to  Payments for permit fees will continue to be by mail, drop box, by credit card over the phone  or in person at City Hall.

Email all permit requests to the Permit Technicians here.

To request an inspection (three options, pick one):

Nashua also offers a Remote/ Virtual Inspection (RVI) 

The Department of Building Safety provides the RVI to better serve you. Using a minimum 4G tablet or smartphone you can coordinate with our inspectors, over several different applications, to conduct a remote inspection guided by one of our team. The program at this time is geared to specific types of inspections that are eligible, but for those applicable inspections, it can save you valuable time. 

Mission Statement
The primary mission of the Department of Building Safety is to safeguard the public, promote the health, safety and welfare of the City of Nashua through the fair and equal administration of the building codes of the State of New Hampshire and the City of Nashua. 


The Department of Building Safety is committed to providing quality services in a professional manner through equitable treatment of all applicants for permits, inspections, information and to provide assistance to other departments, boards and commissions.

Permit Submittals
Request Inspection

City of Nashua Improvement Permit GIS Map

Want to know what construction is going on in your city? The Department of Building Safety's GIS Map can help.
GIS Projects Map shows current permits and permits for the past three years.

Permits GIS Map »

Notice to all Licensed Design Professionals, Contractors and Property Owners

On Friday, July 1, 2022 Governor Sununu signed into law House Bill 1681, which updates the NH State Building Code (RSA 155-A) to the 2018 editions. The updated codes are in effect as of Friday, July 1, 2022.

We understand and appreciate that updating of codes can bring changes that may affect your projects, especially those that may take many months to finalize. To that end, HB 1681 also provides for a six-month period where either the 2018 codes or 2015 code editions may be utilized for projects that are in formal process with the Community Development Offices, including the Planning Department or Department of Building Safety. Projects that are currently in design and submit an application and plans for final review prior to January 1, 2023 will be permitted to complete the review process, receive permitting and have inspections performed to the applicable codes in effect at time of application, provided that final “For Construction” building and building systems plans are approved by no later than January 1, 2023.

The updated codes for the state of New Hampshire as of July 1, 2022 are:

2018 International Building Code

2018 International Residential Code

2018 International Plumbing Code

2018 International Mechanical Code

2018 International Existing Building Code

2018 International Energy Conservation Code

2018 International Swimming Pool and Spa Code

2020 National Electrical Code, NFPA 70

2018 Fire Code, NFPA 1

2018 Life Safety Code, NFPA 101

Several of the adopted codes also have amendments to address New Hampshire specific concerns. Those amendments are found on the NH Building Code Review Board (BCRB) website at:

Anyone that has questions or concerns about a specific project and what codes will apply are encouraged to contact the City of Nashua Department of Building Safety at 603-589-3080 or


Current Adopted Codes with Amendments

View the online resource containing these Amendments and rules.