Citadella, Budapest, Hungary
At the summit of Gellért Hill stands a monument once built to inspire fear and today a symbol of freedom. The comprehensive restoration of the Citadella brings together historical heritage and contemporary concrete craftsmanship in one of Hungary's most extraordinary construction projects.
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ProjectCitadella
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LocationBudapest, Hungary
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ApplicationPublic Facilities
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ArchitectArt1st Design Stúdió
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Construction CompanyGanaco
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PhotosGyörgy Palkó
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CategoryStone & Masonry
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Product
History Made Tangible Again
The Citadella on Gellért Hill is one of Budapest's most historically charged sites. Between 1850 and 1854, the Habsburg Empire erected the fortress following the suppression of the Hungarian uprising – a deliberate symbol of imperial power. Its limestone walls, up to four metres thick, still define the structure today.
After the imperial garrison withdrew in 1899, the site passed through decades of changing uses and growing neglect. Although the Citadella was inscribed on the UNESCO World Heritage List in 1987, it remained inaccessible to the public for many years.
Archaeological surveys launched in 2020 marked the beginning of a comprehensive restoration of the historic ensemble. Since spring 2026, the Citadella has reopened as a public cultural and civic destination.
Heritage Meets Contemporaneity
of Rock
The challenge was immense: a fortress complex over 170 years old was to be transformed into a vibrant, accessible city park without compromising its authentic fabric. ZÁÉV Építőipari Zrt. and Market Építő Zrt. shared responsibility for the individual construction areas – the Rondella, the defensive walls, the wing buildings, the glass hall, the courtyard and the promenade pathways. The design was provided by Art1st Design Stúdió and Pagony Táj- és Kertépítész Kft.
In total, approximately 15,000 m² of rock was excavated, 750 m² of white concrete and nearly 7,000 m² of grey concrete were placed, and over 445 tonnes of reinforcing steel were installed. Three new access points opened the previously closed fortress to the outside world: at the north gate, the south gate of the Rondella, and the east bastion – creating the decisive architectural dialogue between old and new.
White Concrete in Dialogue with Natural Stone
The three new entrance portals mark the interface between the historic limestone masonry and the present day. Planners and clients chose a clear, timeless response: white, curtain-hung precast concrete shell panels (Kéregpaneele). Their bright, monolithic appearance creates a deliberate contrast to the weathered, reddish-grey stone of the fortress.
At the southeast bastion, a staircase formed from five-metre-high inclined concrete slabs leads from the new entrance down into the inner courtyard. Individual elements weigh up to 2.2 tonnes and were lifted into position by mobile crane, secured with bespoke stainless steel fixings developed exclusively for this project.
Part of a Landmark Restoration
The restoration of the Citadella has created a project that preserves historic identity while opening new public spaces for the future. We are proud that our formliners part of this landmark project, contributing to the architectural connection between past and present.
Particularly in projects of historic significance, the choice of materials and surfaces is decisive for the impact of a building. We are especially pleased that our formliners has become part of this transformation.
Dóra Fáczán, Area Sales Manager Hungary
Texture with Depth and Character
For the surface finish of the precast concrete elements at the entrance portals, the designers selected two RECKLI formliners: RECKLI 2/157 Fichtelberg and RECKLI 2/201 Mecklenburg. Together, they create a balanced architectural expression that combines textured depth with calm, monolithic surfaces.
The Fichtelberg formliner was used to produce approximately 350 m² of precast concrete elements. Its organic, tectonic texture evokes the layering and faulting found in natural rock formations, creating a strong visual dialogue with the historic masonry of the fortress. The structured surface adds depth, shadow and a pronounced material character to the architecture.
In addition, approximately 300 m² of precast concrete elements were produced using the Mecklenburg formliner. It was used for the project’s “smooth” exposed concrete elements. Its finely nuanced surface texture creates a calm and homogeneous appearance while preserving the material authenticity and precision associated with high-quality architectural concrete.
Production was carried out using the precast method, ensuring the dimensional accuracy and surface consistency required for the installation of the inclined façade elements with their complex stainless steel connections. The use of white cement enhances the bright, monolithic appearance of the concrete surfaces, giving the architecture a contemporary and confident presence.
New Spaces for Freedom and Community
The Citadella today is far more than a restored monument. Inside the western Rondella, the exhibition "A Szabadság Bástyája" (The Bastion of Freedom) invites visitors on a journey through Hungary's struggles for freedom across approximately 2,000 m² of casemates and cannon corridors, now flooded with light.
A spectacular glass reception building – featuring eight full-height glulam glass beams each spanning 14 metres – connects the historic masonry with the exhibition space. Fourteen individual glass roof elements span the atrium, continuing the contrast between the weight of the past and the transparency of the present.
In the inner courtyard, a reflecting pool with an eternal flame mirrors the sky above – a symbol of collective memory. Surrounding it, a 6,000 m² public park was created, planted with over 630,000 specimens including ornamental trees, lavender, roses and vines.
From four new viewing terraces, Budapest unfolds in its full panoramic splendour. The Rondella rooftop terrace and three further platforms together offer a complete 360-degree view of the city and its surroundings.
