This unique hotel proves that 328cm is certainly enough for a hotel to be comfortable. The origins of Clementin can be traced back to the 1360's. It was a part of the bigger house until early 18th century, when someone rebuilt it to become the narrowest house in Prague. And added 3rd floor too. There are some nice historic details around like sand stone ribbon portal at the entrance, and gothic cellar with medieval vault.
Rooms have surprisingly wide list of amenities for such a narrow hotel: AC, TV's, minibars, coffee machines, and other amenities usually seen in 4-star hotels. Old Town Square and Charles Bridge are a short walk from the hotel. Perfect location.