What changes when the building is protected
In a listed building, what changes is what you may touch and how it gets approved. The façade, windows, balconies and protected interior elements go through a stricter procedure, and the technical design has to show that the work preserves the building’s value. In most cases the external appearance and certain specific elements are protected. At higher protection levels, interiors can be protected too.
That is why the protection level and the list of protected elements are checked by address before the design starts, and ideally before you buy.
How to find out whether a building is listed
Barcelona keeps a catalogue of its architectural heritage, and the Ajuntament publishes it online with a search by address. The building’s record shows the protection level and exactly what is protected: façade, entrance hall, staircase or individual elements. Besides individual buildings, whole ensembles are protected too, stretches of street where the overall appearance is regulated.
You cannot tell by looking. A plain building may be listed and an ornate one may not. If you are buying a flat in the Eixample, Gràcia or the Old Town, ask a technical professional to check the record and the planning report before you sign the arras deposit contract.
What is usually restricted
Mostly, whatever can be seen from the street. Replacing windows and balcony doors: material, glazing pattern and colour. As a rule, a timber window cannot simply be swapped for a PVC one. Balcony railings, enclosing balconies and galleries, awnings, air-conditioning units on the façade and the façade colour.
Inside the building, common areas are often protected: the entrance hall, the staircase and the lift shaft. When elements inside the flat are protected, they are usually moulded ceilings, Catalan vaults, hydraulic tile floors or original doors. Any work on them has to be justified in the design.
What it means for an Eixample flat renovation
The most common question is windows. Old timber windows do little against cold and noise, yet they cannot be replaced with just anything. Workable solutions are made-to-measure timber windows with double glazing that reproduce the original profile and glazing bars, or secondary glazing on the inside that is invisible from the street.
Air conditioning goes in without an outdoor unit on the façade: on the roof, in the inner courtyard if the building rules allow it, or with a system that needs no outdoor unit. Hydraulic tiles and plaster mouldings are worth keeping even when the building is not listed. They are recorded and protected before demolition, which we cover in a separate guide.
Procedure and design
A design for a protected building carries more documentation: a photographic record of the current state, a description of the protected elements and a justification of every decision. A report from the Ajuntament’s heritage services is often required. Work on the façade or on protected elements can move the application into the major-works licence regime, which has its own guide.
Common elements need the agreement of the comunidad de propietarios. Processing usually takes longer than for an ordinary renovation; the specific timeframe is confirmed with the Ajuntament.
Budget, and the mistakes that cost most
The money goes on items and work you cannot buy off the shelf: made-to-measure windows, restoration of tiles and mouldings, a restorer’s time. These items are priced in the quote after a site visit and measurements. For reference, our full-renovation tiers start at €1,000/m² (Basic) excluding VAT, and projects in protected buildings tend to land at Standard or Luxury level.
The most expensive mistake is ordering windows or starting on the façade before approval. If the Ajuntament rejects the solution, the product has to be remade, and anything done without permission has to be put back as it was.
How to plan the project
The sequence is: check the protection status before buying or designing, survey and photograph the original elements, prepare the design with a heritage specialist, obtain approvals, and only then order and build. Interior work that does not touch protected elements can be planned in parallel.
When a project calls for it, we bring in a heritage specialist. One person is responsible for the site, and we work in Russian and Spanish. Send us the building’s address and tell us what you want to change. We reply within an hour.