Kayalar Onka Yapı was founded in January 2021 in Kadıköy, Istanbul, by civil engineer Onur Kaya to develop and deliver efficient and safe construction projects and, by following the latest developments in technology, to help bring the construction sector up to contemporary standards. With professionalism, creativity, honesty and a market-building approach, it continues to grow steadily in the sector. Following a production policy that embraces technological innovation and sets trends, it serves the construction sector with the aim of establishing the idea of “quality living” and creating new value.