Sultanbeyli

The history of Sultanbeyli, located in the Asian part of Istanbul, is primarily a story of rapid transformation from a rural landscape into a densely populated urban district, reflecting the growth dynamics of the entire metropolis in the second half of the 20th century.

Foundation and Development

For centuries, the territory of modern Sultanbeyli was sparsely populated and covered in forests. During the Byzantine and Ottoman periods, it was home to country estates and agricultural lands. The name itself presumably comes from the phrase "Sultan Beyliği," which translates to "the Sultan's domain." While traces of settlements here date back to Roman-Byzantine times, the key moment for the formation of the modern city was the resettlement of Turkish immigrants from Bulgaria on these lands in 1945. However, the real demographic explosion occurred in the 1980s and 1990s.

Key Factors of Formation

The growth of Sultanbeyli was driven by several important factors:

• Geographical Location: Its position on the Asian side of Istanbul at the intersection of key transport arteries made these lands highly attractive for development and residency.
• Internal Migration: Starting in the 1980s, a stream of internal migrants from various regions of Anatolia poured into Sultanbeyli in search of work and housing near the country's economic hub.
• Administrative Status: A significant milestone was achieving independent district status in 1992, which encouraged more systematic infrastructure development and governance.

Early Cultural and Economic Characteristics

Initially, the local economy was agrarian. With the onset of mass migration, Sultanbeyli quickly turned into a "bedroom community," where a significant portion of the population worked in other, more industrialized parts of Istanbul. The cultural identity of the district was shaped by settlers from different corners of Turkey, creating a vibrant and diverse social environment. Today, Sultanbeyli is a dynamic district with developing infrastructure, where historical heritage, such as the restored Aydos Castle, exists alongside modern residential complexes and shopping centers.

Key Dates in the History of Sultanbeyli

The chronology of Sultanbeyli's development reflects its transformation from a sparsely populated rural area into one of the dynamic districts of Istanbul's Asian side.

• 1328 — Ottoman forces led by Abdurrahman Gazi conquer the Byzantine Aydos Castle, establishing control over the region.
• 1945 — A settlement for Turkish immigrants from Bulgaria is founded on the lands of former state farms, laying the foundation for modern Sultanbeyli.
• 1957 — The settlement officially receives village status and the name Sultanbeyli.
• 1980s — The construction of the Trans-European Motorway (TEM) near the area leads to rapid population growth due to internal migration from Anatolia.
• 1987 — Sultanbeyli, previously a village, is administratively attached to Istanbul's Kartal district.
• 1992 — Sultanbeyli officially gains status as an independent district (ilçe), separating from Kartal, marking a vital administrative milestone in its history.
• 2009 — A large-scale restoration of the historic Aydos Castle begins, lasting over a decade.
• 2012 — Gölet Parkı (Pond Park), a major recreational complex, opens and becomes a popular leisure spot for residents.
• 2023 — Restoration of Aydos Castle is completed, and it opens to visitors as a significant cultural and historical site.
• 2023 — A section of the M5 metro line opens, connecting Sultanbeyli with other districts of Istanbul and significantly improving transport accessibility.

The history of Sultanbeyli is a journey from an ancient outpost to one of the most dynamically developing districts of modern Istanbul. Although its most rapid growth occurred in the late 20th century, this land has witnessed many historical eras.

• Ancient Roots and Byzantine Heritage. The territory has been inhabited since Roman-Byzantine times. A key strategic site of that era was Aydos Castle, situated on one of the region's highest hills. Its ruins remain today as a reminder of the land's centuries-old history.
• Transition to Ottoman Rule. In 1328, during the Ottoman conquest of Anatolia, these lands were taken by forces led by Orhan Gazi. Aydos Castle played a vital role in this campaign. For many centuries, the area served as agricultural land owned by the Sultan, which likely gave the area its name — "Sultan Beyliği" (The Sultan’s Domain).
• Formation of the Settlement in the 20th Century. In 1945, vast tracts of land were allocated to resettle Turkish immigrants from Bulgaria. This step laid the foundation for the future settlement, which began to take shape on the site of former farmlands.
• Gaining Village Status. In 1957, Sultanbeyli was officially registered as a village. This triggered the first sales of land plots, though the process was complicated by administrative restrictions, leading to the spontaneous nature of construction in the following years.
• The Era of Rapid Urbanization. The construction of the Trans-European Motorway (TEM) and the Fatih Sultan Mehmet Bridge in the 1980s fundamentally changed Sultanbeyli’s destiny. The district found itself at the center of new transport arteries, triggering an unprecedented influx of people and a construction boom.
• Becoming a Metropolitan District. Following rapid population growth and development, on December 31, 1987, Sultanbeyli was granted official district status within the Istanbul Province. This event marked its final transformation from a rural suburb into a full-fledged part of one of the world's largest megacities.
• Modern Sultanbeyli. Today, it is a densely populated and bustling district in the Asian part of Istanbul, home to over 300,000 people. It continues to develop actively, with new residential complexes, shopping centers, and social infrastructure projects turning it into a modern residential area of Turkey.

The architectural character of Sultanbeyli is a vivid visual history of its rapid urban development, with almost no room for classical styles like Gothic or Renaissance. Instead, the area is dominated by styles reflecting the turbulent urbanization of the late 20th and early 21st centuries.

Historical Foundation: Byzantine and Ottoman Heritage

The only significant architectural monument from the distant past in the district is Aydos Castle. This structure, founded during the Byzantine era and captured by the Ottomans in 1328, is a prime example of medieval military architecture. Its powerful walls and towers, which have been restored and opened to the public, serve as a historical contrast to the surrounding modern development.

Era of Rapid Urbanization: Functional Development (1980s–2000s)

Sultanbeyli’s primary architectural landscape took shape during a period of mass internal migration. This stage is characterized by "spontaneous construction." Architecturally, these are mostly simple and functional multi-story apartment buildings. The main goal at the time was to provide housing for as many people as possible rather than following a specific architectural style. As a result, the district became filled with dense but fairly uniform residential buildings that still make up a significant portion of its appearance today.

Modern Period: Planned Development and New Forms (since the 2010s)

A new phase began in Sultanbeyli in the early 2010s, defined by planned development and the emergence of iconic modern projects. The architecture of this period is more diverse:

• Modern Residential Complexes: New housing projects are appearing, often realized through government programs (such as TOKİ) or private developers. They feature more thoughtful layouts, modern designs, and dedicated infrastructure.
• Public and Commercial Buildings: Large shopping malls (such as Atlaspark), new state hospitals, and cultural centers are changing the face of the district. Their architecture follows modern minimalism and functionalism, utilizing glass, concrete, and composite panels.
• New Mosques: Recently built mosques often combine elements of classical Ottoman architecture (domes, minarets) with modern materials and design solutions, creating a fresh and contemporary religious aesthetic.

In this way, Sultanbeyli’s architecture is a mosaic where ancient castle ruins sit alongside the utilitarian buildings of the migration boom and modern projects symbolizing a new, more organized stage of the district's evolution.

Prominent Figures Associated with Sultanbeyli

The history of Sultanbeyli is closely intertwined with its rapid development. While the district may not have a long list of world-famous natives due to its relatively short urban history, several key figures have left a significant mark on its formation.

• Abdurrahman Gazi — An Ottoman military commander and one of the iconic figures in the region's early history. It was he who conquered the Byzantine Aydos Castle in 1328, establishing Ottoman control over this strategically important territory. His name is immortalized in one of the central neighborhoods (mahalle) and a mosque in Sultanbeyli.
• Rolanda (The Legendary Princess of Aydos) — A semi-legendary figure associated with the conquest of Aydos Castle. According to legend, the daughter of the Byzantine commander fell in love with Abdurrahman Gazi and helped him capture the fortress from within. This romantic story is an integral part of local folklore and cultural heritage.
• Alaattin Nalbant — A politician and the first mayor of Sultanbeyli. He headed the district immediately after its official establishment in 1992. His role was crucial in creating the administrative structure and launching the first infrastructure development plans during a period of chaotic growth and mass migration.
• Yahya Baş — A politician who served as the mayor of Sultanbeyli from 2004 to 2009. His leadership coincided with a phase of active urbanization when the foundations for future large-scale infrastructure projects were laid and the pressing needs of the rapidly growing population were addressed.
• Hüseyin Keskin — A politician who has served as the mayor of Sultanbeyli since 2009. His name is associated with the modern stage of the district's transformation: the completion of the Aydos Castle restoration, the opening of the metro line, the construction of major parks like Gölet Parkı and Sultan Korusu, and the implementation of numerous social and cultural projects that have significantly improved the quality of life in the district.