Urban Design Project / Cendere Valley
In midst of this scenery the traces of a new budding condition can be seen. The high rise blocks that have been surrounded by walls stand facing the texture that has come flowing from the Buyukdere Avenue. Ahead new office buildings are trying to settle into the ground. It appears that the wave of transformation is almost about to reach here. The condition of this valley 100 year ago consists of a memory that has been left in ancient engravings… The valley that has been used as an agricultural area in the last years of the Ottoman Empire, fills up with industrial areas in 1950s with the beginning of the Republican period. Industrial area effects the environment and the brook negatively. The area sustains its life as it is for a long time. Coming to today from 1980s, the transition to the post-fordist production and the decentralization of the industry from big cities, necessitate a transformation that is triggered by the service sector’s rising existence and the need for offices and residences as a result.
A lot of the urban transformation processes in Turkey, appears as
gentrifications of the existing city texture.The loss of character of
the existing texture when it was aimed to gentrify it in the first place
results in processes that result in the citizen to alienate from the
place where he was born and growed up in and lose his place that cause
painful conditions that are socially charged. The transformation in
Cendere contains a replanning of the place that has become available
with the leave of a function that is going to decentralize. In this
sense it can be said that it breaks away from the urban transformations
that displace people.The association that the land owners in Cendere Valley has formed, aims to organize this actualization of transformation in a more integrated plan. For this reason, the association consulted by Istanbul Metropolitan Planning Governance which covers the area in 4 parts, introduces architecture firms like EAA into the process. In this project, in planning sustainable urban transformation process, EAA’s main approach can be accepted as not disregarding the expectations of the investors, looking out for the rights of the land owners and residents, increasing the public use areas and protecting social, ecological and environmental values. To sustain the green corridor character of the Cendere Valley for Istanbul by preserving the low density, and with this to also to obtain a density enough to create an urban life, was taken as a strategic decision referring to the whole area. This decision necessitated being in the antagonist position against all of the actors that wanted high density during the process.
Cendere Valley is in one of the most important ecological corridors in Istanbul. The forests on the Black sea side and the low-density settlement in the base of the valley, sustain this quality of the valley.
Cendere Valley is also located between the TEM and E5 highways which are important arteries of the city and with this quality it becomes advantageous in terms of transportation. The Buyukdere Avenue that is to the left of the valley is the most important initiator.The main arteries and building textures that left between Buyukdere Avenue and the valley, carry the potential to transform and connect these two areas. The Anadolu and Cendere Avenues that continue along the area, emerge as important, open to progress arteries of the region.
In the proposal, a controlled density that’s limits has been determined by sustaining the buildings along Cendere and Anadolu avenues, emerges as an important instrument in the generation of city texture.
In this context, the continuity of the block that holds the avenue fronts, will be a decision that will effect the identity of the urban formation positively. The continuity of the arcade besides the edge of the avenue creates a sheltered walkway line infront of the commercial units on the ground floor.
The low-rise blocks along the main traffic arteries that hold one side of the avenue, on one hand keeps the continuity of the texture and on the other creates a permeable facade between the ecological corridor thats in th line of the avenue and the brook.
In the ground elevation which was planned to have dense public use, are passages and transitions that enable the pedestrian access between the avenue and the brook line and create a visual relationship.
Similarly, semi-open shaded spaces that enable multiple uses are placed rather than masses with uninterrupted facades,in the office zone. To seperate the functions to different blocks in plan level, creates irreparable division and divergence in the city texture. For this reason, instead of zoning in plan, the strategy of seperating functions in section was accepted as a way to sustain the mixed function building in the whole area.
The green terrace that is on the office zone divides the private areas on the upper grades from the public areas that are closer to the ground.
Beneath the gren terrace is the semi-public zone in which education, information, technology and office spaces are. The residential blocks that will be placed in the last layer of this formation settles on top of the continuous texture. Residential blocks use the green terrace as a common open space.
The focus points that will be planned to sign the activity areas with different thresholds along the ecologic line, will break the uniformity and create target points that will bring a rhythm to the urban environment.
The buildings that continuously follow one line along the avenue, will recede back and create steps in the brook side occasionally and allow the green areas both in plan and in section,to penetrate the building on ground level and the terraces on upper grades.
Along the valley high-rise blocks were avoided to not block the North-south air corridor and a formation combining low-rise and high-rise blocks was proposed.
The conjunction of the concrete channel that will be built fort he brook recovery and the green area should be a soft transitional band rather than a divergent and sharp line.
The Cendere region evolves into an ecological corridor enticing for all citizens.Thus, the near surrounding environment can reach a soft ground and natural water edge and the Cendere region evolves to be an ecological corridor enticing for not just the Cendere Region but for the whole city.
The rail system if placed near the brook recovery line with using compatible systems with nature, will increase the use of the valley and become a crucial vehicle.
