What is an Architectural Project?

The architectural project, broadly speaking, is the necessary guide based on a set of plans, memory and budget, to carry out a building or construction.

All architectural projects consist of a series of phases that allow us to develop the work we want to carry out, meeting deadlines and costs. In addition, the correct Integral Construction Management includes all the necessary procedures such as visas, licences and permits, without them these projects could not be carried out. This translates as obtaining the Building Permit from the corresponding Town Hall.

Who can carry out an Architectural Project?

All architectural projects must be carried out by a competent technician in the field, who will carry out the entire project following the phases set out below, always taking into account the client’s opinion, preferences and tastes, advising on any doubts that may arise. In short, forming a team with the client, whether they are an individual (self-promoter) or a promoter, until the desired product is achieved. In the case of housing, the competent technician according to the LOE is the Senior Architect.

What are the phases of an Architectural Project?


In this phase of the project, the aim is to find out what the client wants to do, drawing up a study of possibilities and initial proposals.

It is very important to have a base budget, as the ideas will be more or less feasible depending on it.

It will also be necessary to undertake a search for information on the urban planning conditions that affect the site (plot, site, etc), which is defined in the urban planning regulations applicable to the area in which limitations, restrictions or construction obligations are established, such as the minimum plot surface area, buildability, degree of protection, etc.


As the name suggests, this is the pre-project phase. At this point, we get to know the client’s wishes and priorities, being able to develop a series of simple drawings, which give shape to the original ideas.

The pros and cons of the proposals drawn up will be studied, and the client will choose the one that best suits their preferences. After meetings with the architect the conversation will lead to the choice of the proposal that will form the basis of the basic project.


The basic project consists of detailing the proposal chosen in the preliminary project, so that a series of plans are generated with sufficient detail to show the surfaces and volumes of the spaces, as well as the materiality of the project.

The product obtained is the result of a dialectic between client and architect, an element that has been gradually polished thanks to the efforts of both parties.

It should be noted that the basic project can be used to process the building permit, always under the protection of adding the necessary documentation when required.


This phase consists of preparing all the information necessary to carry out the work, i.e. all those aspects of the building that had not been taken into account in the previous phase, or that had not reached a sufficient level of definition.

It usually deals with the more technical aspects, such as the overall installations, construction details, structural plans, the final choice of materials, etc.

The processing of the licence can also be carried out by submitting the Basic and Execution Project together, in order to speed up obtaining the Building Licence.


Obtaining the building permit guarantees the legality of the work, allowing the work to begin.

Throughout the duration of the works, supervision by the architect and the rest of those responsible for the correct execution of the work is necessary by means of site visits.

IThe work will be guaranteed to be carried out in accordance with the Health and Safety Plan and the Specifications, which accompany the project.


By means of the issuing of the Final Works Certificate, it is corroborated that the work has been completed and that all the works have been successfully completed, carrying out a final inspection guaranteeing these aspects.

What types of projects can there be?

  • Multi-family dwellings (Free and VPO)
  • Single-family houses
  • Administrative buildings
  • Commercial buildings
  • Buildings for public use
  • Parking buildings
  • Industrial buildings
  • ETC.

How much does it cost?

The cost of the project and the architect’s project management for change of use must be calculated on a case-by-case basis. For information purposes, the cost will depend on the contract budget and varies according to the metres of intervention:

  • from 0 to 50m2 price 7.6 % CEB
  • from 50 to 100m2 price 7.2 % CEB
  • from 100 to 200m2 price 6.6 % CEB
  • from 200 to 400m2 price 6.1 % CEB
  • from 400 to 600m2 price 5.7 % CEB
  • ETC.