The fate of the now-royal car park is a mystery to me, but one of the books is called “The king under the car park.”
A piece from 2017:
A car park in the English city of Leicester, where the remains of King Richard III were discovered five years ago, is now a protected monument.
Specifically, the location has been given scheduled monument status and described as “one of the most important sites in [the U.K.’s] … national history.”
https://www.wabe.org/english-car-park-where-remains-of-richard-iii-were-found-declared-a-monument/