Heybeliada, Adalar
Heybeliada Neighbourhood Steel Doors
Heybeliada is one of 5 neighbourhoods in Adalar. Population 4,661 (2025), area 2.51 km², density 1,861 per km². Postcode 34973. Muhtar's office: Erbay Sk. No:2 HEYBELİADA/ADALAR. District population rank 2 of 5. Holds 26.7% of district population. 18 named buildings. Our workshop in İkitelli OSB is 33 km away as the crow flies. Nearest: Nizam, 2.5 km. We come to this address to measure.

Steel door manufacture, sales, on-site measurement, installation and service across Istanbul.
Heybeliada facts and sources
| Fact | Heybeliada |
|---|---|
| Population | 4,661 (2025), second source agrees [1, 2] |
| Women / men | 2,119 / 2,542 [1] |
| Postcode | 34973 [3] |
| Area | 2.51 km² (calculated) [4] |
| Population density | 1,861 people/km² (calculated) [1, 4] |
| Muhtar's office | Heybeliada Mahalle Muhtarlığı [5] |
| Office address | Erbay Sk. No:2 HEYBELİADA/ADALAR [5] |
| Coordinates | 40.877262, 29.099086 (office building) [5] |
Sources (6), checked 5 November 2026
- [1] dataset version 2025, updated 2026-05-21; primary source TÜİK MEDAS (biruni.tuik.gov.tr/medas) · api.turkiyeapi.dev/v2/neighborhoods?provinceId=34
- [2] derived from TÜİK ADNKS 2025 data (retrieved 2026-11-05) · https://www.nufusune.com/40142-istanbul-adalar-heybeliada-mahallesi-nufusu
- [3] postcode source PTT Kargo (ptt.gov.tr/posta-kodu), dataset version 2025, updated 2026-05-21 · api.turkiyeapi.dev/v2/neighborhoods?provinceId=34
- [4] openstreetmap.org/relation/9460395 (OSM contributors, ODbL; retrieved 2026-11-05) · nominatim.openstreetmap.org
- [5] İBB Open Data Portal, "Muhtarlık Adres Bilgileri" (GeoJSON, dataset updated: 2025-06-05) · data.ibb.gov.tr
- [6] Overpass API, named buildings inside relation/9460395; retrieved 2026-11-05 · OpenStreetMap (OSM contributors, ODbL)
Named buildings inside Heybeliada
18 named buildings
- Heybeliada İtfaiye İstasyonufire station
- Rum Ortodoks Ruhban Okuluuniversity
- Rus Esirler Anıtıhistoric building
- Hüseyin Rahmi Gürpınarhistoric building
- Heybeliada Vapur İskelesistation
- Hüseyin Rahmi Gürpınar Mesleki ve Teknik Anadolu Lisesischool
- Hacı Mehmet Kerse Mescidiplace of worship
- Heybeliada Rum Ortodoks Mezarlığıplace of worship
- Vaftizci Yahya Manastırıplace of worship
- Bahriye Mektebi Camiiplace of worship
- Terki Dünya Manastırıplace of worship
- Aya Triada Manastırıplace of worship
- Heybeliada Camiiplace of worship
- Aya Triadaplace of worship
- Aya Nikola Rum Ortodoks Kilisesiplace of worship
- Bet Yaakov Sinagoguplace of worship
- Aya Yorgi Kilisesiplace of worship
- İnönü Parkıpark
Heybeliada within Adalar
- Density against district average
- 1.21x
- Sharing postcode 34973
- Postcode 34973 belongs to this neighbourhood alone inside Adalar.
Neighbourhoods around Heybeliada
Straight line between muhtar office buildings, not a shared border.
Carry on from Heybeliada
Survey, manufacture and installation run with one team across Adalar.