A modular home can cost less than a comparable site-built home, but the factory price is only one part of the budget. A realistic move-in figure includes the home, land work, foundation, delivery, utility connections, permits, and final installation.
As a planning range, a factory-built unit often starts around $55 to $110 per square foot. Once the site and finishing work are included, a complete project commonly falls around $85 to $170 per square foot. Your location, site conditions, home design, and finish level determine where a project lands within that range.
What does the quoted price include?
Before comparing proposals, ask whether each figure is for the factory-built home only, a delivered-and-set structure, or a complete move-in-ready project. Those are very different scopes, even when the home size is the same.
| Cost stage | What it typically covers |
|---|---|
| Factory-built home | Modules, standard materials, and factory construction. |
| Delivered and set | Factory-built home plus transportation, crane work, and placement on the foundation. |
| Move-in ready | Delivered-and-set home plus site work, utilities, permits, connections, and final finishing. |
The costs beyond the home itself
The largest surprise is usually not the home. It is everything needed to make the site ready and connect the finished building to daily life. A strong budget separates these items instead of treating them as a vague allowance.
- Site preparation: clearing, grading, drainage, access, and any work required before construction begins.
- Foundation: the right foundation depends on the home design, soil, climate, and local requirements.
- Delivery and installation: transportation, crane access, setting the modules, and joining the structure.
- Utilities and final connections: water, sewer or septic, power, heating and cooling connections, and inspections.
- Permits and local work: surveys, approvals, local fees, and any work outside the factory scope.
How to build a useful budget
Start with the size and design of the home, then price the site separately. A simple, accessible lot with nearby utilities can look very different from a sloped or remote site that needs extensive preparation. Finish choices and custom features also change the final figure.
Use the same scope checklist with every builder. If one proposal includes the foundation and another does not, they are not directly comparable. The clearest quote identifies each responsibility, timing assumption, and allowance before the project begins.
Questions to ask before you compare quotes
- Is this a factory price, an installed price, or a move-in-ready price?
- Which site, foundation, delivery, and utility costs are included?
- What assumptions have been made about access, soil, permits, and local labor?
- Which finishes are standard, and which are upgrades?
- Who coordinates the work between delivery and final handover?
Plan the full project, not just the home
Moduulize helps project teams connect design, engineering, manufacturing, delivery, installation, and support around the finished environment. For a closer look at the project sequence, explore the Moduulize process. If you are still defining the site budget, see the guide to modular home land preparation costs.