Barcelona is a city with an immense architectural heritage: from modernist buildings to century-old residential properties in the Eixample district and medieval palaces in Ciutat Vella. At 4ARK, we are proud to preserve these buildings, which form part of the city’s urban and cultural identity.
Historic buildings, however, pose a clear challenge: they were designed in periods with regulations very different from today’s, when fire safety was not regulated and accessibility was not yet a social priority.
Today, the great challenge is to keep these buildings alive and functional, making them safe and accessible for everyone while preserving the historical and architectural value that makes them unique.
Catalonia goes a step further in its regulations, adapting its heritage with safety and accessibility criteria.
- In Spain, the Technical Building Code (CTE) establishes the core standards. Its DB-SI section, dedicated to fire safety, sets out the requirements for safe evacuation and fire containment.
- DB-SUA, dedicated to safety in use and accessibility, helps prevent accidents and ensures that everyone, regardless of their physical condition, can access and move through buildings safely.
In Catalonia, this national regulation is complemented by stricter legislation: the 2014 Accessibility Act and the 2023 Accessibility Code. Within this framework, the concept of universal accessibility is introduced, requiring all built environments to be usable by everyone. In old or protected buildings, this is approached progressively, with creative solutions that respect their historical value.
In addition, the Technical Building Inspection (ITE) is mandatory in Catalonia for residential buildings that are 45 years old or older, or that undergo comprehensive rehabilitation. This inspection must be repeated every 10 years and identifies structural issues, damp, deteriorated installations or serious deficiencies. The ITE not only helps preserve the building: it also often becomes the trigger for accessibility and safety improvements.
Common improvements in heritage buildings carried out by 4ARK.
- Façade and balcony rehabilitation. The inspection and repair of façades and balconies prevents the detachment of render, cornices and other ornamental elements that may weaken over time and pose a serious risk to pedestrians and residents. These interventions reduce accidents in public areas and ensure the stability of balconies, allowing aesthetic preservation and public safety to coexist.
- Structural conservation. Many buildings have weakened floor slabs or damaged structural elements. Invisible reinforcement techniques are used, such as wall stitching or concealed metal reinforcements, stabilising the building without altering its original appearance.
- Fire safety. Interventions include discreet fire doors, integrated detectors, structural reinforcements and emergency lighting in evacuation areas.
- Universal accessibility. This includes the construction of ramps or the installation of stairlifts, lifts in inner courtyards where none exist, and clear signage in public facilities, all integrated with respect for the surrounding environment.
- Safety in use. Continuous handrails and non-slip flooring, for example, help minimise the risk of accidents such as falls.
- The Barcelona we value, with its rich historic buildings full of detail, must also be accessible and safe. Preserving means keeping buildings in use, so that heritage remains functional today and for future generations.
