According to the survey titled "Average Age of Housing in Istanbul", the average age of residence in Istanbul is determined as 12, while Fatih comes with an average of 26 years at the beginning of the districts where the elderly houses are located .. According to the survey conducted by index, 25 years with the Adalar, 24 years with Beyoglu, 21 years with Güngören.
Following the first four counties, Bakırköy, Beşiktaş and Kadıköy with 17 years, Bahcelievler with 16 years, Zeytinburnu with 14 years and Avcılar with 13 years are followed by 20 years with the highest number of districts with the highest residential age.
At the beginning of the settlements where the youngest residents are located, Esenyurt and Sancaktepe come with an average of 4 years. The average age is 6 years in Arnavutköy, Çekmeköy, Sultanbeyli and Tuzla, 7 years in Eyüp, Basaksehir and Ümraniye, 8 years in Pendik, Beylikdüzü and Kagithane, Sultangazi, Kucukcekmece and Ataşehir 9 years, Bağcılar, Gaziosmanpaşa and Çatalca 10 years, Sarıyer, Büyükçekmece, Esenler, Şile and Kartal' 11 years.
In Maltepe, Bayrampasa, Beykoz and Silivri, the average age of residence is 12 years.
Average age of districts by type of apartment
When the average age of different types of residence is examined, the average age of the residents is 171 years with Fatih, 25 years with Beyoğlu, 24 years with Adalar, 21 years with Bakırköy and 19 years with Güngören .