How Much Does a Construction and Renovation Project Cost?
Article 2 of the Building Planning Law (Law 38/1999, of November 5) specifies the circumstances in which it is necessary to submit a construction project. They are as follows:
The amounts are indicative and come from the original imported guide. The final budget depends on the scope, materials and previous condition of the space.
Service Levels and Pricing
Compare the different options available based on your budget and needs for your construction and renovation project.
Basic
Simplified technical project for minor renovations and construction work without structural complexity. Includes basic plans and essential documentation according to regulations.
Standard
Complete construction and renovation project with all technical documents required by law. Ideal for most medium-scale residential and commercial projects.
Premium
Comprehensive project with full technical management, construction supervision, and coordination of specialists. Maximum quality and assurance for complex or large-scale projects.
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How much does an architect's technical project cost?
The cost of drafting an architect's technical project typically ranges between 900 € and 14,000 €. When calculating this budget, factors such as the property's size and the type of work (new construction or renovation) are taken into account.
Full renovation for 70 m²
31,000 €
Full renovation for 100 m²
45,000 €
Technical project for house construction of 70 m²
85,000 €
Tips for undertaking a renovation project with Reformia
Article 2 of the Building Planning Law (Law 38/1999, of November 5) specifies the circumstances in which it is necessary to submit a construction project. These are as follows:
1. Hire an architect or architecture firm
Working with accredited professionals is always a guarantee that the work will comply with regulations and be carried out safely. In addition, they can advise on the best construction solutions in each specific case. All this, without forgetting that to obtain a building permit, a renovation project signed by a qualified professional is an essential requirement to be valid and accepted.
2. Find out about the documentation that must be submitted to the city council
Each city council has its own municipal regulations and ordinances, and the requirements for approving a renovation can vary from one to another. This is the case, for example, of the need to request a minor work permit or simply submit a responsible declaration. It is also advisable to find out if, in the case of major works, in addition to the project, the submission of any other document is required.
3. Manage timelines well
In a renovation project, timelines can be long, especially if it is a large-scale work. It must be taken into account that drafting the renovation project can take weeks, since it is necessary to make prior urban planning consultations before drafting, take measurements and data, make a preliminary project for the client to approve, and, if so, draft the project. These matters can take 3 to 4 weeks.
Article 2 of the Building Planning Law (Law 38/1999, of November 5) specifies the circumstances in which it is necessary to submit a construction project. These are as follows:
What is usually included in a quote
Each professional may structure quotes differently, but most project budgets follow this logic.
Typically included
Often not included
Necessary procedures to carry out a renovation
Article 2 of the Building Planning Law (Law 38/1999, of November 5) specifies the circumstances in which it is necessary to submit a construction project. These are as follows:
1. Contact an architect to determine the project's feasibility
Even if the city council does not require submission of a renovation project for the granting of a permit, it is important to request the services of a professional. It is a guarantee that the proposed work is viable and can be carried out safely. If the project is mandatory due to the scope of the work, it will only be accepted if carried out by a competent professional.
2. Drafting the renovation project
Prior to drafting the project, it is necessary to carry out an in-depth inspection of the property and know the municipal regulations so that the project conforms to them. Then the general lines of the work must be defined to set them out in the document, attaching drawings and justification of the adopted solutions, as well as an estimated budget for the cost of the work.
3. Submission of the project to the competent authority
Once the renovation project is drafted, it must be submitted to the urban planning department of the corresponding city council along with the building permit application. In addition, it will be necessary to pay the corresponding municipal taxes. The amount of these taxes can vary from one municipality to another, but they range between 2% and 6% of the Budget of Material Execution (PEM).
4. Granting of the building permit
Work must not begin without the granting of a building permit. This can be delayed up to three months, or even longer. It must be taken into account that, although administrative silence is accepted as acceptance of the start of work after this period, this does not mean that the city council grants the permit. It can happen that, once the project is reviewed, it is not granted and the applicant is forced to return the property to its original state.
What can change your final price
Even similar projects can end with different budgets. These are the factors that most often push costs up or down.
Project complexity and scope
Larger-scale projects, comprehensive renovations, or those with complex technical features require more professional working hours and detailed documentation, significantly increasing the final cost.
Built area and number of floors
The price is typically calculated per square meter of built area, being more economical for smaller projects and increasing proportionally with larger homes or multi-story buildings.
Required technical specialties
If the project requires specific engineering disciplines (structural, special installations, energy calculations), it will be necessary to hire additional technicians beyond the architect, multiplying the total cost.
Location and local regulations
Each municipality has different regulations that may require additional procedures, extra reports, or special adaptations, directly affecting the preparation time and final budget.
How much does an architect's technical project cost?: explanation
Article 2 of the Building Planning Law (Law 38/1999, of November 5) specifies the circumstances in which it is necessary to submit a construction project. These are as follows:
The table shows prices for drafting different types of projects. The calculation has been made according to the Budget of Material Execution, which is the value that architects typically use to set their fees.
How much does a construction project cost depending on its type?
Article 2 of the Building Planning Law (Law 38/1999, of November 5) specifies the circumstances in which it is necessary to submit a construction project. These are as follows:
These are estimated prices; the recommendation is to always request custom quotes, especially because the percentage of the PEM that professionals apply as fees can vary significantly from one to another.
Minor construction projects are usually carried out for property modifications that involve removing non-load-bearing partition walls or changing installations. This would be the case, for example, of joining two rooms or enlarging a bathroom. The project is a guarantee that, despite the changes, the livability conditions are not altered or there is no breach of the Technical Building Code.
This project, like any other, must include technical documentation, justification of the adopted solutions, materials and qualities, and an estimated budget. Regarding the cost, professionals typically charge a percentage of the Budget of Material Execution (PEM), which can vary from one to another because professional fees are deregulated. In any case, they start from a minimum of 4% and can increase depending on the difficulties the work may entail.
Major construction project
- The drafting of a renovation project to remove a non-load-bearing partition wall that does not involve changes to installations will cost around 1,000 €. This would include structural assessment, drawings, technical project, procedures, and project management.
- A renovation project to recondition the interior of a two-story single-family home by changing flooring, finishes, and installations, with some specific modifications to the interior layout, would cost around 4,400 € by applying professional fees of 6% of a PEM of 73,000 €.
- The project to repair a 100 m² façade making the necessary repairs, but without changing its appearance, will have an approximate cost of around 2,500 €, including structural assessment, plan survey, documentation submission, and project management.
- The project for changing the use of a small commercial space into a residential unit will have a cost starting from 3,000 €, including drawings, technical justification report, budget, study, and specification sheets for materials.
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Construction
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Installers
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Maintenance
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Moving Services
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Minor Works
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Renovations
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Technical Services
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Frequently Asked Questions
How much does a renovation project cost in Spain?
The cost of a renovation project varies depending on its complexity, ranging from 1,500€ to 5,000€ for minor renovations, and from 5,000€ to 15,000€ for more complex projects requiring structural modifications. The price is normally calculated between 5% and 12% of the total construction budget, depending on whether it is a basic project or a full execution project. For comprehensive home renovations, technical projects typically cost between 8,000€ and 20,000€.
What does a construction and renovation project include according to the Building Planning Law?
According to Law 38/1999, a construction project must include a descriptive report, detailed drawings, technical specifications, itemized budget, and health and safety documentation. The project must be prepared by a registered architect and must comply with the current building technical regulations in the autonomous community. Depending on the type of renovation, it may require structural calculations, installations, and finishing specifications.
How long does it take to prepare a renovation project?
A basic renovation project typically takes 2-4 weeks to complete, while a detailed execution project may require 4-8 weeks depending on complexity. Renovations involving structural modifications or changes to installations can extend the timeline to 8-12 weeks. The timeframe also depends on the architect's availability and how quickly client-requested changes are approved.
Do I need a technical project for any type of renovation in my home?
Not all work requires a technical project. According to Law 38/1999, it is not necessary for minor renovations such as painting changes, repairs, or flooring renovation without altering the structure. However, a technical project is mandatory for any work involving structural changes, modification of space distribution, changes to installations, or work on facades. It is recommended to consult with an architect to determine whether your renovation requires a project.
How do I choose an architect for my renovation project?
It is essential to find an architect registered with the Official Association of Architects in your autonomous community, verify their experience with renovations similar to yours, and review previous projects. Request quotes from several professionals to compare prices and included services, keeping in mind that a very low quote may indicate lack of detail. Make sure the architect is insured and can advise you on the administrative procedures necessary with your local council.
Got more questions? Contact us!
Got more questions? Contact us!
Frequently Asked Questions
How much does a renovation project cost in Spain?
The cost of a renovation project varies depending on its complexity, ranging from 1,500€ to 5,000€ for minor renovations, and from 5,000€ to 15,000€ for more complex projects requiring structural modifications. The price is normally calculated between 5% and 12% of the total construction budget, depending on whether it is a basic project or a full execution project. For comprehensive home renovations, technical projects typically cost between 8,000€ and 20,000€.
What does a construction and renovation project include according to the Building Planning Law?
According to Law 38/1999, a construction project must include a descriptive report, detailed drawings, technical specifications, itemized budget, and health and safety documentation. The project must be prepared by a registered architect and must comply with the current building technical regulations in the autonomous community. Depending on the type of renovation, it may require structural calculations, installations, and finishing specifications.
How long does it take to prepare a renovation project?
A basic renovation project typically takes 2-4 weeks to complete, while a detailed execution project may require 4-8 weeks depending on complexity. Renovations involving structural modifications or changes to installations can extend the timeline to 8-12 weeks. The timeframe also depends on the architect's availability and how quickly client-requested changes are approved.
Do I need a technical project for any type of renovation in my home?
Not all work requires a technical project. According to Law 38/1999, it is not necessary for minor renovations such as painting changes, repairs, or flooring renovation without altering the structure. However, a technical project is mandatory for any work involving structural changes, modification of space distribution, changes to installations, or work on facades. It is recommended to consult with an architect to determine whether your renovation requires a project.
How do I choose an architect for my renovation project?
It is essential to find an architect registered with the Official Association of Architects in your autonomous community, verify their experience with renovations similar to yours, and review previous projects. Request quotes from several professionals to compare prices and included services, keeping in mind that a very low quote may indicate lack of detail. Make sure the architect is insured and can advise you on the administrative procedures necessary with your local council.