How much does it cost to lift a house and add a basement?
A basement can add additional storage or living space to a house, especially where it isn’t possible to expand out or up. Adding a basement to an existing house can cost $30,000-$70,000 or more, depending on the size of the existing crawlspace or half-basement or if the house is on a slab foundation. Many experts estimate that it is less expensive to build an above-grade addition however, house-moving companies say that adding a basement to an existing house is a cost-effective addition.
Adding a basement to an existing house requires: building permits and engineering plans; raising and supporting the house; excavating the basement space; re-grading and creating new drainage; and pouring concrete footers, floors and walls.
Other things to consider are:
- Condition/Age of House
- Plumbing and Electrical
- Condition of Foundation