Probably very little, and a fraction that goes down over time. The cost of making new construction ADA-compliant is very small [0]. Retrofits are more expensive, but there are thresholds to try to reduce the pain. As we move to more and more post-ADA construction, the overall share of construction costs becomes fairly trivial.
As to your student loan, again, probably very little. Let's say it cost a few hundred k spread over a few years -- at CMU, at least, adding 100k spread over 10k students is a molecule in the bucket.
[0] https://adata.org/publication/ADA-faq-booklet ("under 1%")
As to your student loan, again, probably very little. Let's say it cost a few hundred k spread over a few years -- at CMU, at least, adding 100k spread over 10k students is a molecule in the bucket.