We are in the design phase of a home at the New Jersey seashore. We are having a hard time deciding between a grade beam over pile foundation or having the home built on a regular pile foundation.
The home is modest, 1500 sq.ft and is built about 8 feet off the ground (2 1/2 stories total)with a garage beneath. We’re told by the architect that the grade beam foundation will cause less lateral movement from the wind, etc. But, there will be a stud wall built on top of the 3’ block foundation wall.
How is this more rigid than having piling driven closer together, sticking out of the ground high enough to have the garage, with a beam connecting them and the main structure built on top? Wouldn’t the framed wall on top of the block wall cause lateral movement too? Is the extra cost of the grade beam worth it compared to the piling?
Thank you in advance for your expert advice.