武漢老舊街道，老城區，硚口皮子正街-漢宜社區。Old streets, old towns, urban villages, slums in Wuhan, China. 

Agree, the correct word to use is an old town.

Yes, slum it is not. No where is there a location which can be describe as a slum.

May not necessary be for the poor. It is also suitable for the rich who likes such small towns where most amenities are available. Most important is the civic mindedness of the residents.