Who should I hire for a luxury renovation: designer, architect or a studio?
It depends on whether the layout and services change. If they do not, a designer and a contractor are often enough. If walls move, a major-works permit is needed or the structure is touched, you need an architect or technical professional to sign the project. An all-in-one studio simplifies coordination, but independent oversight then has to be set up separately.
The roles differ, and confusing them most often ends in a beautiful picture that cannot be built, or in something built without having been agreed.
Who is entitled to sign the project?
A project for major works is signed by a technical professional with the legal right to do so: an architect, an architect técnico or an engineer, depending on the type of work. An interior designer can only do it with an architecture or engineering qualification as well. More on who signs what is in our article on the technical project.
The Building Act (LOE) distinguishes roles within the technical direction. The director de obra, usually an architect, oversees the technical, aesthetic and planning aspects. The director de ejecución de la obra, generally an architect técnico, controls execution in quality and quantity. Those are articles 12 and 13. The designer is a separate figure in this scheme, and design supervision does not replace technical supervision.
If the wrong person signs the project, it is the permit that suffers, not just the paperwork.
When is a designer alone enough?
When the works involve finishes, furniture, lighting and a few minor partitions without a major-works permit. Then the designer leads the concept, selects materials and produces working drawings, and the contractor builds from them.
It works well in a flat where you change surfaces, kitchen, bathrooms, lighting and joinery and the layout stays. Check that the designer can produce working drawings with construction details, not only renders. Ask which drawings you will receive and who resolves a detail if it turns out on site that it does not fit.
The line falls where the project needs calculation: new openings in load-bearing walls, changed loads on a slab, reworked ventilation and extraction, a changed facade. There a designer alone is not enough.
When do I need a designer and an architect together?
When the layout changes, structure is touched, a major-works permit is required, wet areas move or the services are heavy. The architect answers for legality and calculation, the designer for the look and detail, and both must work on the same drawings.
In an old Eixample flat with high ceilings and hydraulic tiles you almost always need the pairing: slabs, walls and shafts decide what is possible. The designer imagines the marble wall, the architect checks load and fixing, the contractor says how to install it. If the three do not sit at one table before the project is approved, the differences surface on site and cost a lot.
In practice the most valuable thing in a team is a shared model and one set of drawings that everyone uses. Ask to see how the studio coordinates.
What does a studio with its own construction arm offer?
One centre of responsibility, quick decisions and estimates priced by those who will build. The price is less independent oversight: whoever draws and builds is checking themselves.
The benefits show on site: a detail that does not fit is resolved in a day, not in an email exchange between three companies. The designer knows what the crew can do and the contractor knows what the author expects. The drawback is the missing second pair of eyes: nobody checks estimate and quality from outside. That risk is covered by independent technical supervision or an estimate from another company for comparison.
Studios offering "all in one" vary. Ask who signs the project, who runs the site, how changes are recorded and whether you can invite an outside expert to handover. The answer tells you more about the maturity of the process than the portfolio does.
How can I tell whether a concept can actually be built?
Test it with drawings and samples, not pictures. A buildable concept has working drawings with dimensions, details and a specification, material samples and an estimate the contractor priced before approval.
Give the project to a contractor to price before work begins and ask where they see difficulties. In Eixample the typical risk points are ceiling height and fixing heavy panels, junctions of hydraulic tile with a new floor and hidden doors flush with the wall. In our 250 m² children's psychology centre in Eixample there were 24 such doors, and each needed agreed clearances and hardware. That gets solved on the drawing, not on site.
A good sign: the designer gladly shows how each unusual detail is assembled and invites the contractor to the meeting. A bad sign: every objection is taken as a limit on creativity.
How can BCN YARD help?
We run renovation and interior design and work with architects and technical professionals when a project needs a signature. One person responsible for the site stays in touch in Spanish and Russian, payments follow stages under the contract and we give the exact price after the visit and measurements. If you already have a project from a designer or architect, send it and we will price it and show you the details worth discussing before the start.
Frequently asked questions
Who can sign the project?
A project for major works is signed by a technical professional with the legal right: an architect, an architect técnico or an engineer, depending on the type of work. An interior designer does so only with that qualification. Confirm your specific case with the technician before submitting documents.
When is a designer alone enough?
When the works involve finishes, furniture, lighting and minor partitions and no major-works permit is needed. The designer leads concept and working drawings and the contractor builds. If load-bearing walls, slabs, ventilation or the facade are touched, you need a professional who signs the project.
What does a studio with its own construction arm offer?
One centre of responsibility, quick decisions on site and estimates priced by those who build. The drawback is no independent check: whoever draws and builds reviews themselves. Cover it with outside technical supervision or a second estimate for comparison. The line falls where calculation is needed.
How do I know the concept can be built?
Ask for working drawings with dimensions and details, material samples and the contractor's estimate before approval. Give the project to a contractor and ask where they see difficulties. If the author gladly shows how each unusual detail is assembled, the concept is usually well worked out.