3XKO 3XKO is an international architectural firm established to design & deliver special places and build

3XKO is an international architectural firm established to design & deliver special places and buildings across the world.

Hotel 41, Benghazi, Libya3XKO was appointed to design a 5‑star, 102‑room luxury hotel in Benghazi, a project that contri...
01/02/2026

Hotel 41, Benghazi, Libya
3XKO was appointed to design a 5‑star, 102‑room luxury hotel in Benghazi, a project that contributes to the city’s ongoing positive transformation. Envisioned as a modern landmark, the 15,000‑square‑meter development sets a new benchmark for contemporary hospitality within the region.
A defining feature of the design is its innovative grid façade, which gives the building a strong architectural identity. At the core of the concept is a green courtyard that rises continuously from ground level to the roof, where it transforms into a landscaped terrace. This vertical garden enhances environmental performance while creating a calm, nature‑infused retreat within the urban context.
The hotel includes a versatile ballroom, a state‑of‑the‑art conference center, a luxury spa, and a fully equipped gym, ensuring a guest experience defined by comfort, sophistication, and the elegance expected of a true 5‑star destination.




Cultural Center & Opera House, Dhaka, Bangladesh3XKO was commissioned to develop a concept for the Hatir Jheel Cultural ...
24/01/2026

Cultural Center & Opera House, Dhaka, Bangladesh
3XKO was commissioned to develop a concept for the Hatir Jheel Cultural Center, a landmark project comprising five main buildings—an opera house, a high-rise tower, a cultural centre, and a museum—totalling 65,287 m² of built area on an 81,608 m² site.
Designed to harmonize cultural heritage with contemporary architecture, the project fosters creativity, innovation, and community engagement while offering vibrant, inclusive public spaces. Drawing inspiration from leading examples of international city-building, Hatir Jheel aspires to become an iconic destination for both residents and visitors, characterized by a bold metropolitan scale, dynamic streetscapes, and a relaxed atmosphere that celebrates art, culture, and urban life.





Cultural Center & Opera House, Dhaka, Bangladesh3XKO was commissioned to develop a concept for the Hatir Jheel Cultural ...
24/01/2026

Cultural Center & Opera House, Dhaka, Bangladesh
3XKO was commissioned to develop a concept for the Hatir Jheel Cultural Center, a landmark project comprising five main buildings—an opera house, a high-rise tower, a cultural centre, and a museum—totalling 65,287 m² of built area on an 81,608 m² site.
Designed to harmonize cultural heritage with contemporary architecture, the project fosters creativity, innovation, and community engagement while offering vibrant, inclusive public spaces. Drawing inspiration from leading examples of international city-building, Hatir Jheel aspires to become an iconic destination for both residents and visitors, characterized by a bold metropolitan scale, dynamic streetscapes, and a relaxed atmosphere that celebrates art, culture, and urban life.





As the year 2023 is coming to an end, we have some exciting news:We are delighted to share that our design of the state-...
29/12/2023

As the year 2023 is coming to an end, we have some exciting news:

We are delighted to share that our design of the state-of-the-art 5* Sheraton & Fairfield Hotel complex project in the Mülheim District in Cologne has received Planning Permission from the Municipality of Cologne, Germany.

As the Lead Architect, 3XKO was responsible for the design and planning of the project and also coordinated all subconsultants on this prestigious project.

The project will be developed on a land of 13,168 m², which is located on Schanzenstrasse in the Mülheim district, one of the largest revitalization areas in the city of Cologne. The planned plot of land is situated on the site of the former Köln-Mülheim freight train station, which will establish itself as an important business hub after completion of all buildings.

The ten-storey, 46,000 m² (GCA) scheme consists of two separate hotels with a total of 490 rooms offering different levels of service and amenities. It comprises two separable ballrooms, a conference centre, a state-of-the-art fitness and spa facilities, various F&B retail units on the ground floor with associated outdoor seating. The highlight of the complex is a sky bar & restaurant on the top floor, where guests can enjoy the stunning views of the city skyline and the iconic Cologne Cathedral (Kölner Dom).

Once in operation, the hotel development will not only provide high-quality accommodation and services for visitors, but also create hundreds of jobs and boost the local economy. It will also enhance the urban fabric, act as a catalyst and identity of the Mülheim neighbourhood, along with the I/D Cologne project to the north.

We are very proud to be a part of this prestigious project and we would like to express our gratitude to all team members, consultants and colleagues for their excellent collaboration and support.

We wish you all a prosperous and happy new year!
studio grüngrau Landschaftsarchitektur GmbH
Atelier Kempe-Thill B.V.
Löschmann + Partner Ingenieure
Stumbaum GmbH
Lorenz Ingenieure
KUNKEL Partner Ingenieure
IPL CONSULT
BERNARD Gruppe
BFT Gruppe
Assmann Emutec
ISRW Klapdor GmbH
KDS Semler Schult
Althoff Lang
Ingenieurbüro Dobelmann + Kroke GmbH
̈ckblick

Season's Greetings from all of us at 3XKO!
23/12/2022

Season's Greetings from all of us at 3XKO!





Over a decade ago, 3XKO was established and embarked on an incredible journey. We have had the privilege of working on a...
17/12/2022

Over a decade ago, 3XKO was established and embarked on an incredible journey.

We have had the privilege of working on a range of unique, distinctive, and prestigious international projects in collaboration with our clients, business partners and consultant teams from all over the world, for which we are very grateful.

We appreciate all the fantastic moments, passion, dedication and trust you have shown us over this decade and are excited to keep enriching people’s lives by creating beautiful, sustainable places in the future years.

A few weeks ago, our Founding Partner Korkut Oezgenler was invited as the keynote speaker at the “Leaders who build” Лид...
11/11/2022

A few weeks ago, our Founding Partner Korkut Oezgenler was invited as the keynote speaker at the “Leaders who build” Лидерите, които строят Conference 2022 in Sofia, where he talked about the “Fascination of Megastructures”.

“It was such a great pleasure to speak at the ‘Leaders who build’ conference 2022 event in Sofia and to talk about the “Fascination of Megastructures” and their effect on my career.

In a post pandemic world many young professionals and students were forced to adapt to a fast-changing economy, a demanding (construction & real estate) sector, the technological developments, and not to mention different climates. My talk was about, how to stay motivated despite all hurdles, to conquer your fears in turbulent times and how to unlock your potential to overcome future challenges and adversities in a growing and unpredictable world whilst working on your very own “Megastructure”.

In my masterclass the following day, it was also great to hearing the insights from the collective experience of the young professionals, students, and colleagues and engaging in exciting discussions.

Special thanks to and his team from Hobelix Ltd. for organizing this conference to bring together the industry, the community, and young professionals and to be committed to supporting the humans at the centre of every relationship.”

Adresse

An Der Eiche 5
Cologne
50678

Öffnungszeiten

Montag 08:30 - 17:30
Dienstag 08:30 - 17:30
Mittwoch 08:30 - 17:30
Donnerstag 08:30 - 17:30
Freitag 08:30 - 17:30

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Our Story

3XKO is an international design collective established to design and deliver special places for living, working, shopping, culture and learning across the world. We are committed to our core value of design excellence and are dedicated to research & development and sustainability. A ‘Think Tank’ philosophy is employed at our associate studios in London, Cologne and Istanbul, to enable design and management leaders to collaborate and contribute their individual expertise. We combine expertise across sectors, locations, disciplines and all major building types to deliver a truly integrated way of working — resulting in high quality, effective and inspiring built spaces that take clients way beyond their expectations.

Company History International architectural practice 3XKO was founded by the brothers Korkut Özgenler, Korkmaz Özgenler and Koray Özgenler in 2012. Prior to establishing 3XKO, all partners have worked for almost twenty years for internationally renowned architectural firms within the United Kingdom, Germany and France leading a significant number of high profile projects across the globe and winning awards.

Vision We are committed to making better spaces and creating places which enrich people’s lives. Our goal is to work closely with our clients, building users and partners to create WIN - WIN situations that serve as the basis for long-term cooperation. 3XKO will provide excellent and high quality design services for all their clients around the globe. Our international and innovative approach and expertise as architects and designers are the foundation of a successful development of our company. In the constantly changing and demanding real estate market we will adjust and adapt our services in order to provide the best design services and help our clients to be a benchmark for their competitors. Our exceptional cultural and international background is an asset which we will bring into our design ethos and services.

Experience & Innovation 3XKO are a highly motivated architectural practice with team members with over 20 years of international experience working on a number of different project types, including residential, commercial, workspaces, retail, education, interior design, graphics and brand design. 3XKO have been involved in small, medium to large scale schemes within the UK, Germany, France, Brazil, Turkey and internationally at all stages of the design and procurement process. Our philosophy is working closely with clients, developers and building users to produce bespoke, responsive designs with a strong concept from the initial stages to project completion. We work for and especially with our clients. Specialist skills within our firm complement and enhance the practice’s core skills and may also be commissioned by our clients independently.