How to arrive
The apartment is very well connected, having a bus stop 10 meters from the door and the subway 50 meters.
FROM BARCELONA AIRPORT (EL PRAT)
By Train and subway:
Take the short distance train (Cercanías)
line R2 
(each 30 min. trip time 20 min.) till Barcelona Sants and from there the
subway L5 (blue)
direction Vall d'Hebron, till "El Coll / La Teixonera" (each 2-6 min. trip time aprox. 25 min.).
An very important thing is to get on the
subway in the back, because the front exit is very far and hard to arrive.
You can find the train timetable here
and if you have a mobile phone with internet access, you can enter this page to get useful links to
Metropolitan Area Transports.
You can buy a T10 - 1 zone
(10 trips for the first zone, multi-person, integrated) title which will allow you to pay once and take both train and subway whithin
75 minutes. With less than 1€/person, this is the cheapest solution.
By Aerobus and bus:
Take the Aerobus (aprox. 5€/person, non-integrated) till Plaça Catalunya (each 5-8 min. trip 20 min.), and from there,
the bus Line 28 till Pg. Mare de Deu del Coll /
Santuari (each 5-10 min. trip time aprox. 25 min.). Total price of this combination is 6-7€/person.
By Taxi:
Depends on how many guests you are, and the hour of arrival, probably this will not be the most expensive solution, especially at night,
when the traffic is fluid. And may result the most confortable solution. HERE you have the best traject for cab or your own car.