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Istanbul rents up 35.5% in a year; Halkalı–Airport metro section opened on 19 June 2026

Published (GMT+3)Written by ALTEX Realty team

The CBRT's new-tenant rent index for Istanbul rose 35.5% year on year in September 2026. The Halkalı–Arnavutköy section of the Halkalı–Istanbul Airport metro opened on 19 June 2026.

Türkiye

Cost of living in Istanbul: new-tenant rents +35.5%, September 2026

What happened
The CBRT reports that its New Tenant Rent Index for Istanbul stood at 336.5 (2023=100) in September 2026, up 3.5% from August 2026 and 35.5% from September 2025. For Türkiye as a whole the index rose 26.6% from September 2025 to September 2026, which is a 2.4% fall after adjusting for consumer prices.
What it means for buyers
A household budgeting in lira would see this mainly in housing costs; the figure is an index for new rental contracts in the Istanbul region, not a price for any district or individual flat.
Source:
CBRT, Residential Property Price Index and New Tenant Rent Index, September 2026, published 15.10.2026 — CBRT index bulletin

ALTEX Realty is a real estate office in Istanbul. Questions about buying or the citizenship process? Message us on WhatsApp

Türkiye

Getting to Kayaşehir: Halkalı–Istanbul Airport metro section opens, June 2026

What happened
Anadolu Agency reported on 19 June 2026 that President Erdoğan opened the Halkalı–Istanbul Airport metro line and that the Halkalı–Arnavutköy section entered service with the opening. He gave the total project length as 69 km. The trial run went from Halkalı to Kayaşehir station and reached 110 km/h.
What it means for buyers
For someone commuting between Kayaşehir and Halkalı, the line changes the daily route only if both ends fall within the opened section; the report gives no journey time.
Source:
Anadolu Agency, President Erdoğan opens the Halkalı–Istanbul Airport metro line (Arabic service), 19.06.2026 — AA report

ALTEX Realty is a real estate office in Istanbul. Questions about buying or the citizenship process? Message us on WhatsApp

Coming up — official releases to watch

  • TÜİK consumer price index, October 2026: 3 November 2026.

Source: TÜİK bulletin ("next release" line), as cited in the 28 October 2026 brief.

Sources

  • CBRT, Residential Property Price Index and New Tenant Rent Index, September 2026 — accessed 02.11.2026
  • Anadolu Agency, 19.06.2026 — accessed 02.11.2026

General information, not investment or legal advice.

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