U can refer to the property page of 'Apple News'. The rent in general has been raised up to $19 - $ 23 per ft2 .
For 將軍澳 it takes around $8000 for 511ft with 2 bdrms. The flat is pretty small.
I dont think you can find anywhere at 西灣河, 筲箕灣, 柴灣, 沙田, 馬鞍山, 將軍澳, 西灣, 上環 unless that flat over 30years old law...