Simple in a narrow hallway. White painted stairs make them appear wider and the grey runner is both practical and elegant. Seek out a slim console - vintage or modern - thats useful and decorative but not space-consuming.
Houzz: If you don’t have an entire room available for a home office, consider the space under the stairs as a great alternative. The built-in desk and bookshelves of this modern office in Austin, Texas, make for a stylish workspace.