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New Hampshire · NH

Steel & concrete modular homes in New Hampshire

Modular homes are built to state and local building codes and set on a permanent foundation. Here is what applies in New Hampshire.

New Hampshire program

Administering agency
Dept. of Safety, Division of Fire Safety, Office of the State Fire Marshal
Program / authority
RSA 205-C (modular building standard); Saf-C 3300 Rules for Modular Buildings and Building Components
Code basis
NH State Building Code (RSA 155-A: IBC, IRC, NEC and others) and State Fire Code Saf-C 6000
Inspection & seal
Department-approved third-party agencies review the building system and QA program, inspect, and attach per-module state labels.
Good to know
Builder/dealer must notify the local building official and the department at least 72 hours before erecting a unit; local site and land-use rules still apply.
Official source
https://www.gc.nh.gov/rules/state_agencies/saf-c3300.html

Summarised from public sources; rules change. Confirm with New Hampshire’s agency and your local building department before ordering.

Your project in New Hampshire

Step 1

Confirm zoning & permits

Local jurisdiction sets lot, setback and design rules. See Permits & Zoning.

Step 2

Plans reviewed to state code

We stamp plans for the code that applies in New Hampshire.

Step 3

Factory build & inspection

Third-party or state inspection happens in the factory, then final on site.

Step 4

Set, connect, certify

Modules crane in, joints are torqued and inspected, and local sign-off issues the CO.

Quote a New Hampshire home