Nice single room 270pm 1 stop from Plaza De Castilla

We are looking for a 3rd flatmate to share a 3 bedroom flat very close to Plaza de Castilla (we are on line 1, 1 stop from Plaza De Castilla.
Male or female wanted, clean and responsible professional.
I am an English teacher and my flatmate a Journalist from Madrid.
270 per month plus bills.  
7-8 minutes walk from metro and 1 min to main street with bars, shops etc. 5 minutes to huge park.