When I lived in Barcelona, I lived near a little quaint youth hostel that use to be an orphanage. It is quiet and has beautiful architecture and not always booked. It is not centrally located, but if you don't mind the metro ride and a little walk up a hill w/ beautiful views of Barcelona, I would recommend:
http://www.timeout.com/barcelona/hotels/12.html Alberg Mare de Déu de Montserrat
Passeig de la Mare de Déu del Coll 41-51, Gràcia (93 210 51 51 / fax 93 210 07 98 /
www.tujuca.com). Metro Vallcarca.
Open Reception 8am-3pm, 4.30-11pm daily.
Rates (incl breakfast) €16.20-€18.50 under-25s; €19.60-€21.90 over-25s; €2 / per person/stay sheets.
Credit AmEx, DC, MC,V.
Central it isn’t, but this handsome Trinity Towers-style youth hostel does boast an architectural edge over the average. It’s located in a magnificent building that has been a private mansion, hospital and orphanage over the years. Many of the original details in the form of Modernista tilework, whimsical plaster carvings and stained-glass windows have been retained, not to mention lovely gardens. IYHF cards are required for anyone wishing to stay.
Parking (free). Disabled-adapted room. Internet (pay terminals). Kitchen. Laundry facilities. No smoking. Restaurant. TV room.