Full Structural Survey for Listed, Managed Building
This depends on how old the flat itself is, and what it's built of.

If it were actually in an 18th Century listed building, then you should definately have a full structural survey and also a specialist asbestos report as there could easily be asbestos remaining in the structure.

If it's a new development in the grounds, then treat as any other flat of the same age and structure. Management companies are not always well-run, they may not always be assertive enough at getting money to pay for maintenance, and the building may have been under-maintained for years. 

Also check exactly what the listing encompasses and your responsibility for contributing to maintenance of the 18th Century building as listed building work can be very expensive - and a criminal offence if a listed building is altered or damaged without permission.