Dereseki, Beykoz
Dereseki Neighbourhood Steel Doors
Dereseki is one of 45 neighbourhoods in Beykoz. Population 1,647 (2025), area 8.75 km², density 188 per km². Postcode 34825. Muhtar's office: Karakulak Cad. No:62 DERESEKİ/BEYKOZ. District population rank 32 of 45. Holds 0.7% of district population. 2 named buildings. Our workshop in İkitelli OSB is 29 km away as the crow flies. Nearest: Akbaba, 1.0 km. We come to this address to measure.

Steel door manufacture, sales, on-site measurement, installation and service across Istanbul.
Dereseki facts and sources
| Fact | Dereseki |
|---|---|
| Population | 1,647 (2025), second source agrees [1, 2] |
| Women / men | 763 / 884 [1] |
| Postcode | 34825 [3] |
| Area | 8.75 km² (calculated) [4] |
| Population density | 188 people/km² (calculated) [1, 4] |
| Muhtar's office | Dereseki Mahalle Muhtarlığı [5] |
| Office address | Karakulak Cad. No:62 DERESEKİ/BEYKOZ [5] |
| Coordinates | 41.151877, 29.129870 (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/191709-istanbul-beykoz-dereseki-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/9489253 (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/9489253; retrieved 2026-11-05 · OpenStreetMap (OSM contributors, ODbL)
Named buildings inside Dereseki
2 named buildings
- Molla Fenari Camiiplace of worship
- Dereseki Köyü Parkıpark
Dereseki within Beykoz
- Density against district average
- 0.06x
- Sharing postcode 34825
- 8 neighbourhoods
Neighbourhoods around Dereseki
Straight line between muhtar office buildings, not a shared border.
Carry on from Dereseki
Survey, manufacture and installation run with one team across Beykoz.