How much does an architectural project cost in Portugal? Fees and calculation 2025
Talking about the price of an architectural project is a central topic and generates doubts both for clients planning to build and for young professionals. In Portugal, the definition of an architect’s fees does not follow fixed tables or universal formulas. The cost varies between 3% and 12% of the estimated value of the construction. Transparency in this process is key to the client’s success.
In this article, our society of architects explains the factors that influence the final cost of an architectural project in Portugal, presenting the most common calculation method, with a practical example, so that clients and professionals understand exactly what investment is required.
How do you calculate the price of an architectural project?
Currently in Portugal, architects have complete freedom to set their fees, in line with the competition law and the abolition of the old tables. However, the most transparent and widely used method for setting the price of a project is remuneration as a percentage of the cost of the work.
This method is based on an informed estimate of the total cost of the work, using the average construction value per square meter (m²). A percentage is then applied which, as mentioned, ranges from 3% to 12%, depending on the complexity and size.
Key factors influencing the amount of fees
The percentage to be applied when calculating the price of the architectural project varies according to the following factors:
- Size of the project and complexity of the work: larger-scale projects tend to have a lower percentage applied (economy of scale). Complex or rehabilitation projects may require a higher percentage.
- Geographical location: although less significant, location (urban vs. rural areas) can have a slight influence due to logistics and operating costs. The construction of buildings in heritage areas, for example, requires more detail.
- Specific use of the building: different types of buildings, such as residential, commercial, industrial or tourist projects, have different requirements and technical specialties that affect the cost.
- Phases of the project included: the price will be different if the service includes only the license or the entire project, from the preliminary study to the monitoring of the work (we always recommend including monitoring).
An essential point is the total area of the building. The larger the area to be designed, the higher the total cost of the work and, consequently, the fees, even if the percentage applied is lower. It’s a common mistake to think that complexity is only technical; logistics and team management also play a part.
How much does my house cost in Portugal?
Many clients come to us asking how much their house will cost in terms of design and construction. It is essential to understand that the architect works on the basis of the construction budget that the client has.
If your budget is limited, the architectural team must optimize the project so that the cost of the work remains within that limit. This is an added value that pays off in the long run.
Practical example of calculating the price of a project
For a better understanding, let’s illustrate the calculation of architectural fees for a single-family house of 200 m², built from scratch in Loures
Formula applied:
Fees = Percentage Applied (P) x (Construction cost/m² x Area of dwelling)
Average construction cost: €1,400 per m² (indicative figure)
Total living area: 200m²
Percentage applied (P): 7% (average percentage chosen for this example)
-
- Calculating the estimated cost of the work: €1,400 X 200m2 = €280,000
- Calculation of architectural fees: 5% X €280,000 = €14,000
In this example, the price of the architectural project would be €14,000, a figure that covers all the essential phases of the project, including the specialties.
Which phases of the project are included in the architect’s fees?
The fees quoted by a reliable architectural firm in Portugal typically include all the steps needed to complete the project. It is essential to know what you are hiring:
- Basic program: detailed meeting to gather all the client’s requirements, needs and expectations.
- Preliminary study (conception): presentation of the first conceptual and volumetric proposal for the project.
- Licensing project: preparation of all the technical documents required for the project to be approved by the local councils and other competent authorities.
- Execution project: the technical and constructive detailing essential for the correct and efficient execution of the work.
- Technical support (guarantee): essential technical support on site to ensure that the project is implemented without deviations, optimizing construction time and costs.
Important: continuous face-to-face technical support, especially for highly complex projects or in remote locations, can be invoiced separately, subject to a clear agreement in the service contract. In addition, many architects offer additional supervision services, which guarantee the quality of the house and compliance with deadlines.
Indicative price table for residential projects
To give you a quick reference, based on an average construction cost of €1,400/m² and the percentage applied, we present a table of indicative fees for residential projects in Portugal:
|
Size (m²) |
Estimated Value (€) |
|---|---|
|
Small (70m² – 150m²) |
8.500€ – 12.500€ |
|
Medium (150m² – 300m²) |
11.000€ – 22.000€ |
|
Large (300m² – 600m²) |
25.000€ – 42.000€ |
The figures are merely indicative and non-binding. The final cost depends on the specific nature of each project.
Investment in quality and cost optimization
The cost of an architectural project in Portugal varies, but the percentage calculation methodology offers transparency. Investing in a qualified architectural service such as our team is a guarantee that your project will be a success:
- Functional and aesthetic: in line with your needs and the latest trends.
- Cost-optimized: good design reduces waste, prevents errors and optimizes the choice of materials and construction methods.
- Quality assurance: technical monitoring ensures that the work is carried out correctly.
The fees are a small investment to avoid excessive costs during the construction of your future home. If you are looking for rigor, experience and transparency for your next construction or renovation project, contact our team. Request your free quote now.
Tiago R. Correia Arquitectura provides architectural services and project coordination for real estate developers and private individuals. For a detailed quote tailored to the size and location of your project, please contact us directly.
