Thanks for the great answers! Unfortunatley the contractor mislead us on the work agreement. Although there was a verbal agreement...Crawl Space is listed, but because iti's not shaded gray it's not considered a deliverable. Makes no sense since they ran duct work and heat into the new addition. So now we have heating ducts without any serviceable area.
access (minimum entry of the head and shoulders). Check the distance from the bottom of floor joists to ground. Space should be adequate for maintenance and repair. A minimum distance of 18 inches from the ground to the bottom of the joists is highly recommended but not mandated. Hope this helps
Generally, I think its a 18" minimum clearance from the earth to the underside of the floor joists. You also need at least a 6mil plastic vapor barrier above the ground. If you have any other questions, please let me know.
I'm a mortgage officer, and a former builder in NH and Mass.