About

About

We are now focusing our operations on construction projects in İzmir and Manisa.

Denklem Yapı, a subsidiary of Fenbay, is a construction company that develops residential, commercial, and urban transformation projects by combining a modern engineering approach with the principles of quality, aesthetics, and reliability. Empowered by over half a century of industry experience, it aims to create sustainable value in every project.

While we possess implementation and project development experience across many different regions of Turkey, we have been primarily focusing our operations in İzmir and Manisa for the past 10 years. By closely monitoring the region’s needs, investment dynamics, and development potential, we realize projects that enhance the quality of life.

To date:

  • We have successfully completed over 155 projects.

  • We have over 51 years of industry experience.

  • We have realized over 210,000 m² of construction area.

  • We have delivered over 1,520 independent units.

Denklem Yapı and Fenbay are two separate corporate structures with complementary areas of expertise, focusing on projects of different scales.

Denklem Yapı operates with high engineering quality, a detail-oriented approach, and an effective project management philosophy, particularly in:

  • Projects under 2,000 m²,

  • Residential projects with fewer than 20 independent units,

  • Custom villa projects,

  • Boutique residential applications,

  • Commercial construction and renovation works,

  • Concept cafe and office constructions.

Fenbay provides services with its large organizational structure and comprehensive project management experience in:

  • Projects over 2,000 m²,

  • Mass housing projects with more than 20 independent units,

  • Large-scale land-for-share development projects,

  • Urban transformation applications,

  • Commercial and mixed-use projects,

  • Official public tenders.

Denklem Yapı holds a Class F work completion certificate and is authorized to build low-rise construction projects of 10,583 m² in a single instance and high-rise construction projects of 9,363 m² in a single instance (May 2026 data).

F sınıfı iş bitirme belgesi

Fenbay holds a Class E work completion certificate and is authorized to build low-rise construction projects of 20,285 m² in a single instance and high-rise construction projects of 17,460 m² in a single instance (May 2026 data).

Today, both companies aim to produce safe, aesthetic, economical, and sustainable structures in line with a common vision, offering long-term value to investors and users of living spaces. We view every project not just as a building, but as a permanent investment in people’s quality of life, the development of cities, and the future.

 

155+

Construction Project

51+

Years of Experience

210.000m2

Construction Area

1520+

Independent Unit

Management

ali Özçelik

Ali Özçelik

Civil Engineer - Yıldız Technical University

idris özçelik 400 x 400

İdris Özçelik

Industrial Engineer - Bilkent University

esat özçelik(400 x 400 piksel)

Esat Özçelik

Architect - Yeditepe University

Quality

Owner Satisfaction

At Denklem Yapı, we believe that success is measured not only by completed projects but by the satisfaction achieved at the end of each project. For this reason, in all our work, we focus on accurately understanding and meeting the expectations of property owners, landowners, and investors.

Through our commitment to transparent communication, timely delivery, quality workmanship, and sustainable solutions, we build trust at every stage of the project process. In our land-for-share construction, urban transformation, and housing projects, our goal is not just to build new structures, but to create living spaces that increase the quality of life for landowners and property owners, enhance investment value, and can be used safely for many years.

We prioritize the satisfaction of all stakeholders in every project and aim to establish long-term relationships based on mutual trust.

Contact

We Learn from Our Experiences

The construction industry is a dynamic field where every project offers new experiences and fresh insights. Thanks to the more than 155 projects we have completed over the years and our construction experience exceeding 210,000 m², we have viewed every challenge we faced as an opportunity to develop better processes.

Each project has enabled us to gain new achievements in terms of planning, cost management, work scheduling, supply processes, and site organization. Thanks to this experience, we are able to manage our projects more predictably, in a more controlled manner, and with greater efficiency today.

At Denklem Yapı, we believe that success comes not only from making the right decisions but also from being able to learn from past experiences. Therefore, thanks to the workflows, quality control processes, and project management systems we have developed over the years, we identify potential risks in advance, use resources more effectively, and complete our projects in line with planned quality and timeline targets.

The experience we possess today is the result not only of completed projects but also of the accumulated knowledge, solved problems, and systems developed throughout those projects. With this approach, we continue our path in every new project stronger, more efficient, and more experienced than the previous one.