How much does the modern farmhouse cost? How would I get a plan for that house?

It depends on the lot and some other variables, but a similar home would cost in the mid to high 400's. I hope this helps.

Now it depends on your finishes, but typically our custom homes are about $120-$160 a sq. foot. That plan is available at : https://www.wlmartinhomes.com/wlmartin_homes.php House Plan: Cedar Creek