Well you'll be across the road from Hyde Park then.
Your very central in a very expensive part of the city, Buckingham Palace is only about 5 minutes walk from Marble Arch, Houses of Parliament, Big Ben and the London Eye no more than a 15 minute walk.
Picadilly Circus, Covent Garden and Leicester Square are all next to each other and again about a 10 minute walk. These are the main tourist areas in the city.
Notting Hill is a short stroll to your West and a little shop called Harrods a similar distance to the South.