A frequent business type near 28 D'arblay Street is Film Production Services and Studios.
Toothache? There is a dentist locally for all your dental needs. For help with marketing and branding, consult with various Advertising Agencies available locally. If you are hungry there are a few restaurants serving the area. There is a lumber yard in the area for wholesale building material.
There is a Shoe Store not far away for all your footwear needs. There is at least one attorney nearby. Catch the latest film release at the Cinema. Only a stone's throw away you will find a management consulting firm.