Modular vs. Stick-Built Homes in NH: How to Compare

Modular and stick-built homes differ in where much of the construction takes place. Modular sections are built in a factory and delivered for assembly; a site-built home's structure is largely constructed at the property. Neither label establishes the finished quality, total price or completion date. Compare the entire project on the same site and specification.

Distinguish modular from manufactured housing

“Factory-built” describes more than one housing system. New Hampshire's RSA 205-C governs modular building standards and certification. HUD maintains a separate manufactured-housing program with its own construction standards and certification labels.

Ask the seller or manufacturer to identify the actual classification and provide the documents. Do not infer the construction type from appearance or use “modular,” “mobile” and “manufactured” interchangeably. Have the lender and insurer evaluate the specific home, land ownership and installation.

Compare an installed home with an installed home

A factory package can exclude land, foundation, delivery, crane work, utility connections, site labor and finishing. A site-built proposal can also exclude major project costs. Obtain a written scope for each and reconcile the omissions before comparing totals.

Include designs, approvals, excavation, drainage, decks, garages, landscaping, financing and temporary housing where applicable. Use the NH construction budget checklist. A lower factory price does not establish a lower completed cost.

Check delivery and installation access

Ask the modular supplier and site contractor to evaluate the delivery route, turning space, overhead obstructions, staging area and crane location. Establish who obtains needed permissions and who pays for access work or a failed delivery. Verify that foundation dimensions and tolerances match the approved plans.

These questions can be especially important on compact Seacoast sites, private roads or developed neighborhoods. Resolve them before ordering modules, not after the foundation is complete.

Understand the approval responsibilities

Under NH modular law, the certification label does not displace requirements for installation and site work such as foundations, grading, driveways and utility connections. Ask which inspections occur at the factory and which remain the responsibility of the site team and local officials.

Review zoning, wastewater, water supply and other parcel constraints using the NH land-use checklist. Choosing modular construction does not make an otherwise unsuitable parcel buildable.

Compare schedules with their dependencies

Factory production and site preparation may overlap, but design approval, production slots, delivery, weather, utility work and inspections still affect occupancy. Request a project schedule showing the responsible party and prerequisites for each stage.

For either method, ask how design changes affect cost and timing. Late changes can require revised plans, different materials or rework. Evaluate the contract's delay provisions rather than relying on a general claim that one method always finishes in a fixed number of months.

Clarify warranties and handoffs

Identify the manufacturer, dealer, general contractor, installer and warranty providers. Ask who handles a defect at the connection between factory and site work. Keep one record of approved plans, changes, inspections and completion documents so responsibility does not become unclear after handover.

Obtain actual lender terms, insurance requirements and comparable-property analysis. Neither construction method guarantees a particular appraisal or resale premium. Choose the team, plan and contract that best fit your site and financial limits.

Plan your NH Seacoast purchase

Contact Michael Bean to compare a property, its documents and your next steps. Explore the NH Seacoast resource hub and town comparison guide.