Building Permit

What studies accompany a building permit?

The studies required for the issuance of a building permit differ in the nature of the work to be performed, the size of the building, and in its use. The main studies that accompany a building permit are:

  • Topographic diagram, the depiction of the geometric and elevation characteristics of the plot in which the construction works will take place but also of the adjacent plots and buildings,
  • The architectural study, the architectural and functional design of the interior and exterior of the building, and the configuration of the surrounding area. It is the most essential study of a building project as it starts from the conception of the project while integrating all the other studies.
  • Study of load-bearing structure (static study), the geometric design, and the calculation of the load-bearing structure of the building (reinforced concrete, structural steel, load-bearing masonry) as well as its anti-seismic design and the calculation of the foundation. It is one of the most demanding studies and ensures the static safety of the building and its seismic protection.
  • Building Energy Efficiency Study (ENAK), is the most recent change in the specifications for the issuance of building permits as it is applied only from 1/1/2011. It is the study that ensures the energy efficiency of the building, including any element that may affect it, such as orientation, characteristics, materials of the shell, mechanical equipment, etc. The EN.A.K study replaced the old study of thermal insulation in order for buildings to adapt to the needs of global climate change but also to reduce the energy consumed by buildings today.
  • Water supply study is the design of water supply and hot water supply networks including its heating method (oil boiler, electric water heater, gas fuel burner, solar),
  • Sewerage study is the design of sewer and sewage networks as well as the required mechanical devices,
  • A heating study is a selection and design of the heating system and the required networks and mechanical devices. It also includes the calculation of the heat losses of the building that determine the dimensioning of the heating system,
  • An air conditioning study is the calculation of the necessary cooling loads of the building during the summer months that determine the dimensioning of the cooling system and its design. This study, while being prepared until today for special categories of buildings, is now necessary for every new building. Often, in new constructions where the installation of a central air conditioning system is chosen, the heating and cooling study is treated as a whole. After all, it is today the most ideal and energy-efficient solution.
  • Electrical design is the design of strong and weak electricity networks (lighting supplies, electricity supplies, electrical panels, data and telephone networks, alarm networks, etc.)
  • The study of lifting systems is the design study of the elevator
  • Fuel gas study, the design and dimensioning of the network, and the mechanical equipment for the installation of the gas network (natural gas),
  • Passive fire protection study is the design of fire protection of the structural elements of the building shell and the provision of the necessary escape routes in case of fire,
  • Active fire protection study is required in large apartment buildings and buildings of various uses and depending on the danger they have, and includes the planning of firefighting measures,
  • Time Planning Study, is the time sequence of the tasks (schedule) of the required tasks for the completion of the project.
  • Project Budget, is perhaps the only study without substantive character, as it is not the study of the actual cost of the project but a study of calculating the so-called “contractual cost” of the project required to calculate the contributions and legal fees of engineers required to be paid for the issuance of a building permit.