Why not Colwyn?
Too risky for me. Of course, past history is no guarantee of future performance, but look what would have happened this last year. Let's say I sold property in January 2016 for 100,000 TL. At that time the lira was valued at 23.6 pence so if I changed it to sterling straight away I would have got £23,600. If I had put it into a savings account earning, say, 10% interest and paid the 15% tax on it, then today I would have 108,500 TL. If I decided to change it back on Monday the lira would be worth 20.6 pence and my lump sum would be £22,350. I would have lost £1,250 plus the interest I would have got in the UK - at 1.5% interest less 20% tax this would be another £280. Giving a grand total of £1,530 down. I would need some very good reason for leaving my money in Turkey to be willing to lose that much money.
Now that applies to 2016. Perhaps 2017 is going to be a much better year for the lira. Perhaps.