Skeptic said "I am thinking about building an addition, approximately 200 sq feet.
Does anyone have a cost estimate for an engineer to design a foundation? The house in on a slab foundation.
Thanks in advance
Edited by Skeptic, 2019-01-30 17:28:18"
Estimating a new build or addition I've heard it was a good rule of thumb to use $125 a square foot to estimate what it would cost. Looking at the size you have it would estimate to be $25,000. But again lots of factors to get a true number. Best to contact a contractor and have them take a look.