A lot of residential developers and contractors are opposing the implementation of stricter residential building for fear of rising construction costs. While keeping costs down does have its benefits to the homeowner, making them safer also has its benefits.
According to researchers:
They calculated that applying the new rules would add a maximum of 4.5 percent to new home construction costs.So for a $100,000 home, the new building code would add about $4,500 to the loan. When amortized at 8% APR over 30 years, this will add about $33 to the monthly mortgage note. It seems reasonable to think that some or most of the additional cost could be offset by savings in insurance premiums though I haven't found any research on that.
What builders really need to do is redirect their resources to developing cost-saving methods to impliment these changes instead of waging a loosing battle by fighting better building codes.
UPDATE: A Blog For All has a roundup.