Renovating an old property does not begin with choosing a floor covering or envisaging an open-plan kitchen. It begins with understanding what the property already is: its walls, its proportions, its defects, its orientation and the layers of life it has accumulated. In many old flats, particularly in established urban areas such as Barcelona, the greatest value lies not in what is immediately obvious. It lies in generous headroom, a light-filled gallery, a Catalan vault or a layout which, when reinterpreted skilfully, can restore a spatial quality that is difficult to replicate in new-build properties.
Renovating does not mean erasing. It means deciding what deserves to remain, what needs correcting and what requires a new approach to suit a contemporary way of life. The result should feel natural: Fancy, Fitted, and Well Designed.
Renovating an old home: read before you transform
The first mistake with an old house is to assume that its layout dictates how it should function today. Dark corridors, interconnected rooms, service kitchens and spare bathrooms reflect different domestic habits. However, knocking everything down is not the automatic answer either. Often, the elements that seem to constrain the project are actually what give it its identity.
The initial assessment must combine a technical inspection with an architectural perspective. You need to identify load-bearing walls, drainpipes, ventilation systems, changes in floor level, damp and any previous alterations. It is also worth observing how light enters at different times of day and which rooms have the best proportions. This information defines the project far more than any aesthetic reference.
In a comprehensive refurbishment, the layout is planned around the actual daily routines of those who will live there. Designing for a couple who work from home several days a week is not the same as designing for a family with children, a second home or a property intended for high-end rental. The question is not how many rooms can be fitted in, but which spaces require light, quiet, storage, privacy or connectivity with one another.
The structure determines the scope for freedom
An older property can offer great potential for transformation, but it also demands precision. Structural walls, beams and the position of courtyards determine which changes are feasible. Moving a kitchen or creating a second bathroom can be an excellent functional decision, provided the building services allow for a clean and compliant solution.
In old buildings, it is common to encounter surprises when opening up false ceilings, lifting floor coverings or removing cladding. A deteriorated beam, an uneven floor slab or services that have been layered on top of one another for decades can alter the scope of the work. That is why the budget must include a reasonable contingency allowance. This is not about overestimating costs, but about preventing a technical issue from forcing you to abandon essential decisions halfway through the process.
The structure can also become a form of expression. Restoring a vaulted ceiling, leaving a wooden beam in good condition exposed, or restoring a brick wall can add character. But not every old feature needs to be exposed. If the solution compromises insulation, maintenance or overall coherence, it is better to integrate it in a different way. Authenticity does not mean preserving everything, but preserving with discernment.
Plan the layout with light in mind, not just square metres
Many older homes concentrate the brightest rooms along the façade and relegate service areas to the interior. A well-planned renovation makes the most of this layout without turning the house into a space lacking in hierarchy. Opening up the living room, dining room and kitchen can work very well when it improves circulation and the flow of light, but it is not always the right choice.
An open-plan kitchen requires solutions for ventilation, acoustics, visual order and storage. If these aspects are not integrated from the outset, the space may look attractive on paper but prove uncomfortable in everyday use. In other cases, a partially separated kitchen using lightweight partitions, glass or sliding panels offers a more flexible balance between social life and domestic use.
The aim is for the floor plan to gain a sense of continuity without losing privacy. Circulation routes must be clear, doors must not interfere with one another, and each room must have a recognisable function. In flats with limited façade area, the design of artificial lighting and the choice of light-coloured materials take on decisive importance.
Services: the invisible element that defines comfort
A home may retain its mouldings, restored joinery and terrazzo flooring, but it cannot continue to function with an inadequate electrical system or a makeshift heating and cooling system. When renovating an old property, updating the hidden infrastructure is an investment in well-being, safety and durability.
The electrical system must meet modern requirements: layered lighting, well-placed sockets, data points where necessary, and provision for future equipment. Plumbing requires a review of pressure levels, routing and materials. Air-conditioning, for its part, must be planned in conjunction with the layout and suspended ceilings, not as an afterthought that fills the walls with visible equipment and ductwork.
Insulation deserves the same attention. In existing buildings, it is not always possible to carry out work from the outside, but there are internal solutions that improve thermal and acoustic performance. Balance is key here: adding insulation without analysing thermal bridges, ventilation and condensation can create new problems. Each wall or roof requires a specific solution.
It is also advisable to plan for energy consumption. Efficient lighting, low-flow taps, sensible control systems and correctly sized equipment reduce costs without turning the house into a technological showcase. The best technology is that which is used naturally and does not intrude on the space.
Materials with character and practicality
Materials must be in harmony with the age of the property and the expected intensity of use. In a main residence, durability and maintenance are just as important as the finish. In an investment property or one intended for temporary use, the choice of materials should facilitate repairs and maintain a well-kept appearance over time.
Restoring a terrazzo floor can be an excellent decision, but it requires assessing its condition, any defects and its compatibility with the new floor level. Wooden flooring adds warmth, although it requires a suitable finish for kitchens, hallways or homes with pets. Stone, ceramic tiles and mineral-based paints offer different solutions depending on humidity, light and the desired aesthetic.
The key is to avoid an overabundance of design elements. An old house already has its own material presence. If too many textures, metals, colours and unique pieces are added, the result loses its sense of calm. It is more effective to select a few materials and work on them with attention to detail: clean lines, precise joints, well-executed joinery and a colour palette that ties all the rooms together.
Preserving details without turning the house into a set
Mouldings, original doors, textured glass or fittings can reinforce the project’s identity. But their preservation must serve a functional purpose. A restored door can be integrated into a new layout; a moulding can coexist with contemporary lighting; a window can be upgraded to improve its weatherproofing whilst maintaining its proportions.
A contemporary intervention does not have to imitate the old. When a new piece is designed with proportion, materiality and detail in mind, the interplay proves more interesting than a literal reproduction. A understated kitchen unit, a bespoke bookcase or a bathroom with clean lines can modernise the home without competing with its architecture.
Budget, planning permission and building works: design is also about planning ahead
The cost of a refurbishment is not measured solely in square metres. It depends on the actual condition of the property, the complexity of the installations, any structural work required, the finishes and the coordination needed. A project plan finalised before work begins allows decisions to be made with full information and reduces costly changes during the build.
Planning permission, authorisations from the owners’ association and the building’s conditions must be reviewed from the outset. In older buildings, access points, delivery times, lift usage or waste removal can affect planning. Site management is not a mere formality: it coordinates the trades, verifies the work carried out and safeguards design decisions when unavoidable adjustments arise.
A bespoke project brings order to this process. Architecture and interior design must progress hand in hand so that the technical elements fall into place and the final result remains true to a clear vision, from the layout right down to the very last handle.
The best renovation is not the one that makes an old home look new. It is the one that allows you to live in it better – with more light, comfort and precision – without losing what made it unique.