Renovation project cost in Barcelona: 2026 rates for home renovations

What is the cost of a renovation project for a home in Barcelona? The architect’s fees depend mainly on the built floor area, on what the renovation involves (services, structure) and on the level of detail of the project. Here are our 2026 rates, estimated for Barcelona and its surroundings, what they include and what can make them vary.

Home renovated on Carrer del Baró de Sant Lluís, Barcelona: renovation project cost example

€1,820 + VAT

Project, licence and site supervision, in Barcelona and its surroundings

50 m²

Built floor area of the home in this reference price

3 phases

Preliminary studies, project and site supervision, paid separately

Renovation project cost in Barcelona

The cost of a renovation project depends mainly on the built floor area and on what is changed in the home. These are the minimum fees from our calculator, estimated for Barcelona and its surroundings, for a home with 50 m² of built floor area and a basic level of detail. They include the preliminary studies, the technical project, the licence or prior notification process and site supervision.

Renovation project cost estimated for Barcelona and its surroundings. 50 m² built home and a basic level of detail. VAT not included.
Type of renovation Minimum price
No work on services or structure from €1,820 + VAT
New services, no structural work from €2,550 + VAT
Localised structural work from €3,570 + VAT

What the renovation project cost includes

  • Preliminary studies: visit, survey of the current state and layout proposal.
  • Technical project to carry out the work: report, drawings and measurements.
  • Application and processing of the licence or prior notification with the city council.
  • Help requesting and comparing quotes from several builders using the project measurements.
  • Site supervision by a registered architect, to make sure the work is done properly.

It does not include the building work, which you contract with the builder of your choice, or municipal taxes and fees (ICIO and licence, and in Barcelona the ECA), which are paid separately.

What changes the cost of a renovation project

Built floor area

It is the factor that most affects the cost of a renovation project. With no work on services or structure, the project with licence and site supervision costs from €2,270 + VAT for 80 m² built and from €2,760 + VAT for 120 m² built.

Type of intervention

If the services are renewed, the project for 50 m² built costs from €2,550 + VAT. If localised structural work is also needed, such as opening a load-bearing wall, from €3,570 + VAT.

Level of detail of the project

With a medium level of detail, including full measurements to compare builders’ quotes, the project for 50 m² built costs from €2,640 + VAT.

Municipality

We work throughout Catalonia. To find out the cost of a renovation project in your municipality, use our quote page.

A worked example of the renovation project cost

A 50 m² built flat in the Eixample where the kitchen, the bathroom and the services are renewed, without touching the structure. The project with licence and site supervision costs €2,550 + VAT, paid in three phases: €765 on accepting the engagement, €1,020 on delivery of the project and €765 during the work. You can see a real case in our renovation of a home on Carrer del Baró de Sant Lluís.

How we work, step by step

1. Preliminary studies

We visit the home, take measurements and propose a layout with a first estimate of the cost of the work.

2. Project

We draw up the technical project with drawings and measurements, to apply for the licence and compare quotes.

3. Licence and quotes

We handle the licence or prior notification and request quotes from several builders so you can choose the one you prefer.

4. Site supervision

We supervise the work through to the final certificate to make sure it is done properly.

How you pay: in phases

The fees are split into three phases, and each one is paid when it starts:

  • Preliminary studies and preliminary design (30%). Visit, survey of the current state and layout proposal with a cost estimate. Paid on accepting the engagement.
  • Project (40%). Complete technical project and building licence application. Paid on delivery of the project, before applying for the licence.
  • Site supervision (30%). Supervision of the work through to the final certificate. Paid monthly, in proportion to the progress of the work.

Where we work

Our office is in the city of Barcelona (C/ Sant Hermenegild, 16) and we carry out renovation projects throughout the Barcelona metropolitan area and its surroundings. We also work on projects throughout Catalonia. The renovation project cost in this article is estimated for Barcelona and its surroundings; for other municipalities, check the price on our quote page.

The procedure depends on the municipality: in Barcelona an interior renovation goes through prior notification, while other municipalities require a building licence. In Barcelona it is regulated by the municipal ordinance on works procedures (ORPIMO, in Catalan). We explain the whole process in our guide to the phases of a home renovation, in how to redesign the layout of an Eixample flat and on our renovation service page.

Frequently asked questions about the cost of a renovation project

For a 50 m² built home in Barcelona and its surroundings, with no work on services or structure and a basic level of detail, the project with licence and site supervision costs from €1,820 + VAT. If the services are renewed, from €2,550 + VAT.

Under the same conditions, for a 100 m² built home, the project with licence and site supervision costs from €2,520 + VAT.

In Barcelona, an interior renovation that does not affect the structure or the façade goes through prior notification, with a technical project reviewed by an accredited inspection body (ECA). Other municipalities usually require a building licence. We handle the procedure in each case.

Yes, with a project that calculates the new beam and its supports, and with site supervision. We explain it in our load-bearing wall shoring service.

It depends on what is done in the home, as many factors come into play. In the preliminary studies phase we give you a first cost estimate, and with the project we request quotes from several builders so you can compare.

No. We are architects, not a building company. We draw up the project with drawings and measurements, request quotes from several builders for you to choose from and supervise the work.

They are city council taxes and fees and are not part of our fees. ICIO is usually 4% of the construction budget; we estimate it for you once the preliminary design is defined.

Reviews

What our clients say

4,9 ★★★★★EXCELLENTAverage of 50 client reviews on Google.

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Xavi Gràcia
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Molt professionals i eficients
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Sandro Abegg
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Muy recomendable! Nos ayudaron con todo el proceso relacionado con la compra de un piso y la experiencia fue excelente. Muy buena documentación, gran conocimiento del sector y un servicio profesional en todo momento. Siempre disponibles para cualquier duda y con un trato muy cercano. Sin duda volvería a contar con ellos 💪
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Eva Parellada Vicente
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Necesitaba urgentemente tramitar la solicitud para las ayudas por cambio de ventanas para mejorar la eficiencia energética. El Sr. Sanz se encargó de todo con celeridad y eficiencia, tanto de la tramitación como de elaborar los informes para adjuntar a la solicitud. Lo recomiendo.
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Vladimir Fedotov
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Great team. Professional and easy to work with. I really appreciated their attention to detail and would gladly recommend them!
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Geosuport Geotecnia
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Excelentes profesionales, hemos colaborado en algunos de sus proyectos y siempre nos han facilitado en gran medida nuestro trabajo
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Marc S
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Molt profesionals, seriosos i responsables. Tracte proper. Molt contents d’haver treballat amb ells. Gràcies per la feina feta!
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Alina L
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One of the best architecture services you can find in Barcelona. Responsible, organized and quick. 100% recommendable 👌🏻
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Carlos Ballart
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Tramitaron con muchísima celeridad y profesionalidad el certificado de eficiencia energética y la cédula de habitabilidad del piso. El Sr. Sanz vino personalmente y me dio todos los detalles de la vivienda y de la finca, incluso nos dio ideas de posibles proyectos de reforma. Precios competitivos y por mi parte 100% recomendables.
Sergio Sanz
About the authorSergio Sanz

Architect (ETSAB), COAC registration no. 63.249.
Postgraduate degrees in Architecture and Sustainability and in Real Estate Management.
Founding partner of KAITEK ARQUITECTURA.

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