I just had an inspection done on a house I am trying to purchase and there is no crawl space access. The house is 97 yrs old, and I was wondering if this was normal? Also, are there any regulations on how big a crawl space needs to be for an older home? If not, what would you recommend esp. in the event that a pipe breaks/leaks in the kitchen (here it is only 4" from joyce to ground and am considering excavation to alleviate this problem). Thanks!