My favourite streets and blocks in Stockholm are many. One of them is Karlavägen (I used to live there:), especially "the sunny side" (the odd number side). This apartment, currently for sale via Lagerlings, is splendid. I especially love the library and its fantastic location. The best part of being located on the lower floors is this private entrance to the back yard... house feeling in the city.
Images with permission from Lagerlings. Photos by Johan Nilson, Lagerlings.