In addition some states have specific prescribed petroleum hydrocarbon methods for each range, and some even for each class of hydrocarbons (aliphatic or aromatic) being tested.
Executive Homes Cost More. A prefabricated home costing $259,000 in materials only, will end up costing approximately $581,000 to $854,000 with the land costs, building costs and additional expenditures.This home will have an average of 6,200 square feet with two floors, a full basement, four bedrooms and three full baths. prefabricated home costing $259,000 in materials only, will end up costing approximately $581,000 to $854,000 with the land costs, building costs and additional expenditures.
1 Costs of prefabs are typically cheaper than stick-built homes by an average of 10% to 20%. 2  Faster Than Traditional Construction. 3  Generally, it takes one to four months longer to build a traditional home than to construct a prefab.4  Flexible Size and Aesthetic.o to build a 250-square-foot home, you could expect to pay between $27,500 and $55,000, and if you want to build a 2,500-square-foot home, you could expect to pay between $275,000 and $550,000, not including the cost of land, site costs, or taxes.