This reminds me of my first flat. Classic Victorian house interior with an original fireplace, books in the alcove. However I wasn't stylish enough to have those wonderfully chic grey walls with high white accents.
Built-ins for office. Built ins define an entry via BHG. DIY Built-in IKEA Bookshelves: "Built-in bookcases not only add a ton of character and storage, but they really can make a small house feel so much bigger!