So my parents have been getting quotes to get the grass taken out (955sq ft) and get the same match interlocking added.
5 contractors have visited so far and 2 of them made comment that the existing interlocking has to be relayed to fix the sloping.
One contractor mentioned that only the extended front area needs to be relayed.
The remaining two said, there’s no issues at hand..
Pictures – https://imgur.com/a/Cnylt1I