For 2013, the SCF reports a mean family net worth at $534,600, which means that if you added up the total net worth of all families surveyed and divided that by the total number of families in the survey, the resulting value would be $534,600.
Typically the most expensive type of foundation, the full basement variety consists of a slab basement floor with stem walls that extend from the basement floor to the main level of the building and footers. Homeowners who choose this type of foundation will incur higher costs due to the need for deeper excavation. Grading and forms are also needed in addition to drainage, waterproofing and concrete reinforcements in the basement walls. People who choose a full basement foundation may pay as much as $30,000.
When building in a basement, the use of special fasteners and pressure treated lumber may raise the cost of materials. The length and height of a wall are also important factors in the cost of framing, but itâs generally safe to budget up to $500 to frame an interior wall up to 20 feet long. Keep in mind that any wiring, insulation, plumbing, or drywall work needed to finish your project will add to total costs.