You'll probably need to go to war to book one of the eight spacious and smart rooms in this highly recommended guesthouse run by a young Portuguese-American couple. Behind original medieval walls, it's a modern, minimalist retreat which, in Roman times, was Sintra's first theatre. Today it's all comfort and class, right down to the basement studio, an astonishing deal (€65).
A new free-standing villa was added in 2017 with a mixed four-bed dormitory, a castle-view rooftop and three private rooms.