3LHD is an architectural practice focused on integrating various disciplines – architecture, urban planning, landscape, design and art.

Winning project for the Kaštela Bay bridge

We have won the international competition for a new bridge across Kaštela Bay in Split, together with our colleagues from Pipenbaher Consulting Engineers.
Our proposal showcases a cable‑stayed bridge creating a new direct link between the Split peninsula, the airport, and the regional road network. The bridge spans 1600 m, with a 400 m main span, ensuring uninterrupted maritime traffic through a 200 m wide, 55 m high navigation corridor. Two slender pylons, with a total height of 157 m, define the structure and form a new coastal landmark.
In addition to the traffic lanes, the bridge features pedestrian and cycling paths positioned below the roadway level. They allow views of the Adriatic and ensure protection from wind, spray, and noise.
More info on the LINK

Our office is located in the former Urania cinema.

Despite its age, the building had good predispositions to be adapted, converted and reused.

The new Urania houses public spaces for various cultural events and a couple of office spaces. A multipurpose hall equipped with multimedia and stands is connected to a café bar with a patio and a roof terrace. It is a point of social gathering and public activities, as well as a space for numerous events such as educational workshops, presentations, exhibitions, concerts, screenings and the like.

A unique feature of the Grand Park Hotel Rovinj is its congress / banquet hall, designed to offer a direct view of Rovinj's iconic "postcard" scene — the peninsula with its bell tower. Unlike typical banquet halls, this one is perfectly rotated to showcase this breathtaking view, enhanced by a stunning glass wall that creates a one-of-a-kind visual experience. The design of this feature was a true engineering feat, with collaboration from Sedak to achieve the perfect glass dimensions and bring the vision to life. Red more about this story on the link.

Urania - space of creation, is envisioned as a home for one’s creative expression, especially for the one who questions oneself, society, and the world.

As a space of creation, it considers all of the fields of art and the people who practice it whether they to accomplished or they still have to be so, the ones who are socially aware and the one’s developing audience awareness through education and the exchange of experience.
By interacting and connecting and encouraging education, communication, and innovation as fundamental principles in the process of creative creation, as well as encouraging interdisciplinary work and cooperation with related activities, the development of culture and artistic creation is achieved, connecting the community and activating social change.

Sustainability in our practice

Since the founding of 3LHD, the theme of sustainable construction and environmental care has been present through our earliest projects - whether it's the use of local materials in projects like Sports Hall Bale, introduction of greenery and passive temperature management in projects like the Campus Infobip, the Green Pavilion on the Forestry Faculty Campus, Grand Park Hotel Rovinj, or the exploration and implementation of biodiversity ideas in projects such as the Rimac Campus, Karlovac Freshwater Aquarium and River Museum.
We are committed to advancing sustainability in the context of the built environment, which is manifested through the design of energy-efficient, environmentally friendly, and sustainable architecture. Our office building and cultural space - Urania, is a striking example of the transformation of an existing building with the ability to adapt space for diverse use while reducing emissions, as well as aspects of cultural sustainability by activating users in the city center through the integration of various contents.

3LHD products were created as a response to the needs of specific architecture projects. 

With their aesthetics and function, they emerge from the spaces they were initially created for, but eventually they separate from the project context and become independent products. These products confirm 3LHD's interdisciplinary approach by combining the knowledge of architects, designers and other creators from relevant fields.

Transformation and Strengthening of Competitiveness of the Applicant Studio 3LHD

The project is being implemented with the aim of strengthening the company's capacity to adapt its operations to new market challenges, accelerating digital transformation by introducing new and improving existing processes, participating in trade fairs, and enhancing employee skills as prerequisites for more resilient business operations within the unified digital market.

Read more on the LINK

News

09.03.2026.

Marko Dabrović at the Public Panel Grad i Promet, Vol. 4

Marko Dabrović, partner at the architecture studio 3LHD, will take part in the panel discussion “Grad i Promet”, which will be held on 12 March 2026 at Urania – prostor kreacije.

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07.03.2026.

The winning project for the Kaštela Bay Bridge has been presented

We have won the international competition for a new bridge across Kaštela Bay in Split, together with our colleagues from Pipenbaher Consulting Engineers.

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06.02.2026.

KIOSK Branding Conference: A conversation on K67

As part of the regional KIOSK Branding Conference, taking place on 6 February 2026 at Lauba in Zagreb, Marko Dabrović will take part in a 1-on-1 conversation with Filip Filković Philatz titled K67 Forever: The Modular Classic That Won’t Quit.

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26.01.2026.

12-meter glass wall installed at Hotel Argentina

A large-format glass panel measuring 12 × 2.9 meters and weighing 3,900 kg has been installed at the Hotel Argentina construction site in Dubrovnik.

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15.01.2026.

Prerequisites for the Start of Construction of the Primary School in Kastav

All prerequisites for the commencement of construction works on the primary school and sports hall in Kastav have been fulfilled.

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09.12.2025.

Marko Dabrović on Affordable Housing in Lider Magazine

Our colleague Marko Dabrović participated in a recent Lider magazine article on possible approaches to more affordable housing.

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