How much does it cost to refurbish a flat in Bilbao? Guide with prices/m²

Benefits of refurbishing your home in Bilbao

1️⃣ More functional spaces, adapted to new needs

As time goes by, family needs change. A flat that was perfect years ago may become obsolete in terms of distribution or functionality. Opening up spaces to integrate the kitchen with the living room, redistributing rooms or including an office for teleworking can make the home more comfortable and efficient.

2️⃣ Energy saving and consumption efficiency

Upgrading installations and improving insulation can significantly reduce energy consumption. Opting for double-glazed windows, thermal insulation in walls and ceilings, or energy-efficient heating systems such as aerothermal or underfloor heating can reduce energy bills and contribute to sustainability.

3️⃣ Increase in property value

A refurbished flat increases its value in the real estate market. If the objective is to sell or rent, a refurbishment can considerably increase its price, making it more attractive to potential buyers or tenants. In cities such as Bilbao, refurbished flats can fetch prices up to 30% higher than those in need of updating.

4️⃣ Increased safety and comfort

Older homes may have obsolete installations or materials in poor condition that pose risks to their inhabitants. Renovating the electrical installation, replacing old pipes and reinforcing structures is key to ensuring the safety and durability of the property.

💸 Price of refurbishment according to type of intervention (€/m²)

The cost of a renovation in Bilbao varies according to the size of the project, the quality of the materials and the improvements implemented. Below is a breakdown of the price ranges according to the type of renovation:

1. Basic or superficial renovation (200 - 300 €/m²)

This type of reform is ideal for updating a home without making structural changes or renovating installations. It includes:

✅ Painting of walls and ceilings.
Change of floors (floating platform, laminate or cheap porcelain stoneware).
Renovation of interior doors and skirting boards.
✅ Replacement of sanitary fittings without modifying pipes.
Upgrading of luminaires and electrical mechanisms.

ExampleA basic renovation of an 80 m² flat would cost between €16,000 and €24,000.

2. Medium refurbishment (400 - 500 €/m²)

It brings a more profound improvement, including the renovation of facilities. Includes:

✅ Painting of walls and ceilings.
✅ Replacement of plumbing and electricity.
Renovation of stoneware or natural wood floors.
Installation of solid or lacquered doors.
New kitchen and bathrooms with medium quality tiling.
Thermal insulation in walls or ceilings with plasterboard and rock wool.

ExampleAn average renovation of an 80 m² flat would cost between €32,000 and €40,000.

3. Complete refurbishment (600 - 800 €/m²)

This type of reform involves the total renovation of the home, with changes in distribution, materials and construction systems. It includes:

Demolition of partition walls and redistribution of space.
Underfloor heating or efficient heating (aerothermal, natural gas or low consumption radiators).
PVC or aluminium windows with thermal break.
Solid wood or large-format porcelain tile floors.
Lacquered or hardwood doors.
Bathrooms with built-in taps and made-to-measure furniture.

ExampleA complete renovation of an 80 m² flat would cost between €48,000 and €64,000.

4. High-end or luxury refurbishment (900 - 1.400 €/m²)

For those looking for an exceptional result, this refurbishment includes premium materials and advanced technology:

✅ Natural stone or treated wood cladding.
Home automation for lighting, climate and security control.
Kitchen with top-of-the-range panelled appliances.
Design bathrooms with floor-level showers and wall-hung toilets.
Dimmable and customised LED lighting.
Advanced thermal and acoustic insulation.

ExampleA luxury refurbishment of an 80 m² flat would cost between 72,000 and 112,000 €.

📝 Other costs to take into account in your refurbishment

In addition to the material execution budget, there are other costs that can influence the final price of the renovation and that are not always taken into account from the beginning. Some of them are:

Fees and licences

Depending on the type of reform, you may need to apply for a minor or major building permit at the Bilbao City Council. These fees can represent between 2% and 5% of the material execution budget. See the cost of a minor building permit in the Bilbao City Council.

2. Architect's fees

For complete renovations or those involving structural changes, it is essential to have an architect. For minor works, it is also advisable to have an architect. Their fees may vary in relation to the total cost of the work, depending on the complexity of the project. How to hire an architect.

3. Taxes

Currently, home renovations are taxed at a reduced rate of 10% if the property is more than two years old and the work is carried out by a construction company.

4. Contingencies

It is always advisable to set aside 10-15% of the budget for contingencies. During the construction work, problems may arise that were not detected in the initial planning, such as poorly functioning installations, hidden damp or necessary structural reinforcements.

5. Financial costs

If you are going to finance the renovation through a loan or mortgage, take into account the interest. In some cases, it is possible to include the cost of the architect-approved project in the mortgage, along with the purchase of the home.

6. Other additional costs

• Temporary accommodation: If the renovation is complete, you may need to rent another property for the duration of the work.
• Removal and storage: Depending on the extent of the renovation, furniture may need to be moved or temporarily stored.
• Energy certificate: If the reform is major, it may be necessary to obtain a new energy efficiency certificate.

💰 Subsidies and grants for renovations in Bilbao

In order to facilitate the renovation of housing, there are various grants and subsidies that can reduce the cost of the renovation. Some of the main options in Bilbao are:

Grants from the Basque Government

The Basque Government offers aid for housing renovations to improve the accessibility, energy efficiency and conservation of buildings. These subsidies can cover up to a quarter of the total budget, depending on the type of renovation and the situation of the owner.

2. Aid from the Bilbao City Council (SURBISA)

SURBISA is the body in charge of managing grants for the renovation of buildings in Bilbao. Depending on the location and type of refurbishment, subsidies can be obtained for the improvement of façades, roofs, energy efficiency and accessibility.

3. Next Generation EU Funds

These European funds are aimed at the energy renovation of buildings, offering grants of up to 80% of the cost of the renovation in case of significant energy efficiency improvements. This is an excellent option if you plan to improve insulation, replace windows or upgrade heating and cooling systems.

To access these grants, it is essential to comply with the specific requirements of each programme and present the appropriate documentation. At Nistal Arquitectos we can advise you so that you can make the most of the available subsidies.

Reform your home in Bilbao!

Refurbishing a flat in Bilbao is an investment that improves the quality of life, increases the value of the property and optimises energy consumption. Planning the work well and counting on qualified professionals is key to avoid problems and ensure that the result is as expected. If you are thinking of renovating your home and need advice, at Nistal Arquitectos can help you design and manage your project. with guarantees and efficiency.