Shopping destinations are often part of a 'mixed use' development with some combination of retail, entertainment, leisure and catering offerings, perhaps a hotel too. Many operators rely on loud music as part of their brand identity, others are more sensitive (bookshops for example).
Developers tend to prefer a generic approach to the retail units, rather than designing for specific tenants, which is understandable.
We really justify the 'specialist consultant' badge when the most dramatic adjacencies clash with building structures for which they were not designed.
Servicing and delivery provision, plant noise and traffic management all have noise impact implications too. Busy times!
Examples: Westfield; Super Dry; Fulham Broadway; National Geographic; Bluewater Wintergarden