Guesthouse Castelo is situated in the Lisbon Old Town district of Lisbon and overlooks the Tagus River.

This Lisbon bed & breakfast is located within an 800-metre distance of Martim Moniz tube station and 850 metres from Church of Sao Vicente of Fora. Shopping venues in the area include the riverfront Praca do Comercio (0.7 km) and Luis de Camoes Square (0.8 km). Nature lovers will appreciate the proximity to Doca da Caldeirinha, which is 1.3 km away. The Rua Augusta arch "Arco do Triunfo", a well-known local spot, is also just a minute's drive from the hotel. Guesthouse Castelo is within 300 metres of Rua da Prata bus station.

Bathrooms include a separate toilet and a shower, along with hair dryers and bath sheets.

While staying at this Lisbon property, guests can choose from dining options nearby, such as Allchiado, located around 200 metres away, or Santini Chiado at a 5-minute walking distance.