You will have your own entrance to the apartment from the street and living area is up one flight of stairs.
Holborn is the great find. Bordering the West End, it is in walking distance from the Theater district, Oxford Street and the shopping district, Trafalgar Square, Covent Garden and the Thames River. The British Museum is a mere 4 streets away. Fashionable Lambs Conduit Street with its small exclusive shops/boutique restaurants, bars are around the corner. It is simply central London with less noise at night and a lovely neighborhood feel just steps from the bustling west end life and walkable to the exciting center of London.
I would be happy to help familiarize you with this part of London and beyond. The flat will also have books, maps to help you further.