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.
I love the white subway tile with the white grout. HOUSE TOUR: Coldplay's Jonny Buckland at Home - The tub, fittings, and tiles in the master bath are all by Waterworks, and the vintage light fixture is from JF Chen.