There is a purpose built, new Haman in Gunlukbasi, on the corner, by the football ground (same side) Was passing, with a friend and we asked if we could look round. Smart individual changing rooms, with safe, hairdryer etc. Many treatment rooms, steam/sauna, various massage's to choose from. The staff we spoke to, had good English.
Price for Turkish bath, 50TL, which seemed to me, a bit expensive, for the area, but with high exchange rate approx, still only £13.... Not sure what this years current prices are? I asked if a group went, would we get discount, "Yes of course", was the reply.
Seeing as they are new, might be worth a try for a "Promise", for the 3C's Auction.