Understanding the Cost of Modular Home Additions
Larger additions require more materials and labor, increasing costs proportionally.
Custom features and intricate designs can add to the overall expense.
Site accessibility and regional factors influence transportation and installation costs.
| Factor | Average Cost Range |
|---|---|
| Basic 200 sq ft addition | $20,000 - $50,000 |
| Mid-range 400 sq ft addition | $40,000 - $80,000 |
| High-end custom addition | $80,000 - $150,000 |
| Foundation and site prep | $10,000 - $30,000 |
| Interior finishes | $10,000 - $40,000 |
| Permitting and inspections | $2,000 - $10,000 |
| Design and architectural services | $5,000 - $20,000 |
The cost of modular home additions varies significantly based on size, design complexity, and location-specific factors. Smaller, straightforward projects tend to be more budget-friendly, while custom designs with high-end finishes can substantially increase expenses. Proper planning and detailed estimates can help ensure that the project aligns with financial expectations.
Choosing high-end flooring, cabinetry, and fixtures can add to the overall cost.
Materials like brick, stone, or specialty siding influence the final expense.
Complex layouts and personalized features increase project costs.
| Service | Average Price Range |
|---|---|
| Basic room addition | $20,000 - $40,000 |
| Bathroom addition | $15,000 - $30,000 |
| Kitchen extension | $30,000 - $70,000 |
| Garage conversion | $25,000 - $60,000 |
| Sunroom addition | $20,000 - $50,000 |
| Second-story addition | $100,000 - $200,000 |
| Basement expansion | $50,000 - $120,000 |
| Porch or deck addition | $10,000 - $30,000 |
| Accessory dwelling unit | $80,000 - $180,000 |
| Attic conversion | $20,000 - $50,000 |