The climate you're in should be a consideration.
And the type of Heating and cooling you will utilize.
A crawl space does ease future maintenance and
any building alterations for plumbing, electrical,
The only plumbing that is installed beneath the
slab is waste pipe or drains. Typically you
would not have any problems that would constitute
cutting up the slab. A clean out should be installed
at the exterior of the building to facilitate any
A slab foundation should be several thousand $ less.
How much will depend on the contractors in your
area and several other factors, such as frost line
depth, masonry prices, etc. Get several bids.
A crawl space is susceptible to moisture.
Wood flooring doesn't fair well on a slab.
A slab is typically cold to the feet.
If improperly done or on unstable soil a slab is
difficult to repair.
During a tornado you can get into a crawl space.
A slab has a solid feel to it.