Those are age and era specific concerns. During rapid suburban expansion after the war, and then through the 60's in many locales, building supply was not always as plentiful as the demand for houses was.
In CO we've got interesting areas with mixes of block, wood, structural, and yes, actual true cinder block foundations. They need 'chinked and remortared' every decade or so. Usually associated with foundation only over 3ft crawls, in 60's suburbia economy grade under 1k ranch housing, some brick, some wood exterior, all with wood framing interior. We have a little set of eco housing in Montbello where the builders could not get access to wood, and actually put down metal floor base through whole homes. I'd hate to think about grounding and lightning with those homes, and also when sinks and toilets bust, rusted metal is a lot more difficult to manage for your average handyman than some rotted boards.
Some homes have really great concrete stacker block design, with brick exterior. That can be a material bonus, contrary to the popular belief that concrete stackers are inferior to poured. Some concrete stackers are so friggin durable, you can throw them across the way and they won't break. others will shatter like soft dirt.
Step 1. Identify the appraisal problem.
Step 2. Solve the appraisal problem.
Look to M&S cost approach book I'd think, although I'm still working on figuring out all the details of that little book, which is a specialty in itself to use properly.
If you know the neighborhood and have been there frequently through the years, you'll know if the build material variance is common or not. If you don't know, you'll have to put in more field work and phone work to identify if this is common or not.
