Sümbüllü Bahçe Konağı

Sümbüllü Bahçe Konağı is a historic mansion and complex of auxiliary structures located in the Hisariçi neighborhood of the Osmangazi district in Bursa, dating to the early Republican period and reflecting the characteristic features of traditional Bursa residential architecture. The building group is situated atop the eastern bastion of Bursa’s city walls and lies within a first-degree archaeological protected area. Construction of the main mansion began in 1921 and, with subsequent additions over time, the complex attained its current integrated layout.

Sümbüllü Bahçe Konağı is located in Hisariçi, one of Bursa’s oldest settlement areas. Hisariçi has been continuously inhabited since the Roman and Early Byzantine periods and retained much of its walled urban fabric throughout the Ottoman era. The mansion is positioned south of Tophane Square, near the tombs of Osman Gazi and Orhan Gazi; to its east lies Cemal Nadir Caddesi, to its west Tophane Park and the historic city walls.

The fact that the building complex was constructed directly on the city walls is considered a significant feature distinguishing Sümbüllü Bahçe Konağı from other examples of civil architecture in Bursa, both in terms of location and preservation.

^{Sümbüllü Bahçe Konağı (}Anadolu Agency⁾

Vehbi Rasim Dağlı, the owner who commissioned Sümbüllü Bahçe Konağı, settled in Bursa in 1921 and purchased the plot in the Tophane area the same year, initiating construction of the mansion. The main structure was completed in 1923, and the Dağlı family moved into the residence at that time.

Following the completion of the main building, additional structures with service and residential functions were gradually added around the garden. These extensions transformed the complex into a cohesive residential and auxiliary building group comprising six structures, one of which is the main mansion.

^{Interior of the mansion (}Anadolu Agency⁾

The Sümbüllü Bahçe Konağı complex consists of the main mansion (Structure A), an adjacent service structure (Structure B), and other auxiliary buildings arranged around the garden. All structures are grouped around a shared courtyard, reflecting the inward-oriented spatial organization typical of traditional Bursa houses.

This arrangement facilitates both privacy and the integration of the garden as a central element of daily life.

The main mansion follows the interior-sofa plan type commonly found in Bursa residential architecture. Rooms are arranged around a central sofa on both the ground and first floors, oriented to maximize views and natural light.

The ground floor contains spaces for daily activities, while the first floor houses more private and ceremonial rooms. The main room, designated as the “başoda,” features ink drawings and wall paintings, reflecting the aesthetic standards and stylistic preferences of the period.

The façades are characterized by regular window arrangements, stepped floor levels, and a restrained decorative approach. Proportional relationships are maintained between the ground and first-floor windows, and the façades are painted in pastel tones. Wooden joinery, window surrounds, and balconies are key elements reinforcing the building’s traditional character.

The basement of the main mansion is constructed in stone masonry, while the ground and first floors are built using a timber frame system. Infill materials include wattle and daub and brick; plaster made from lime and wooden elements are widely used throughout the structure. Similar hybrid construction techniques combining timber framing and stone masonry are also evident in the auxiliary buildings.

Sümbüllü Bahçe Konağı and its auxiliary structures were officially registered as cultural heritage by the Bursa Regional Council for the Protection of Cultural and Natural Heritage in 1986 and 1993. The building complex is legally protected and lies within a first-degree archaeological protected area.

Over time, structural damage, material loss, and static problems related to the foundation rendered traditional restoration techniques inadequate for the preservation of the buildings. Technical evaluations concluded that reconstruction was the most appropriate method for their revitalization.

Before reconstruction, archaeological excavations uncovered various remains dating to the Byzantine and Early Ottoman periods. These findings were either preserved in situ or integrated into the project as display elements.

During the reconstruction process initiated in 2008, strict adherence was maintained to the original floor plans, architectural details, and material properties. The main building and auxiliary structures were partially relocated to reduce the load on the city walls; additional basement levels were introduced to ensure structural stability and to facilitate the preservation of archaeological finds.

The reconstruction works were completed in 2011.

Following reconstruction, the Sümbüllü Bahçe Konağı complex was assigned the function of a “social and cultural center.” The main mansion has been adapted for reception and ceremonial purposes, while the other structures serve as a café, educational space, exhibition area, and venue for cultural events.

The complex is currently owned by the Osmangazi Municipality, open to public use, and stands as an exemplary model for the preservation and continued vitality of Bursa’s cultural heritage.