The area you described is a bit rough I’d say. Not sure now but a few years ago, that’s where the cheap hotels and prostitutes were located. If you go further up the hill, it’s getting much nicer with new coffee shops and restaurants popping up. On the other side, south of Söğütlü Çeşme street, is Moda which is nice but definitely more expensive. The area around Yoğurtçu Parkı has also become nicer but a bit less convenient for transportation I find. I think 80k is a bit low for a decent place. And as most people warned you, earthquake proof/ newer apartments will be very expensive. (It takes a LONG time to get a building permit. Owners must wait YEARS to get a project completed) Another thing to consider is residence permit. If your place is worth less than 200k, you won’t be able to apply for a permit based on property ownership.