I can't recommend a stay in Sean's apartment highly enough. It is a fantastic opportunity to stay in an historic Modernisme building and is a completely unique experience. The accommodation is only surpassed by the warm hospitality provided by Sean and his family, who live in the adjoining flat.
It is located within walking distance to the lively district of Gracia and Park Guell and is less than a minute from the metro station which provides great access across the city.
You won't be disappointed!