We are responsible for mechanical and electrical design for both buildings as well as BREEAM certification for the office one for Heweliusza 18 offices and Rajska 8 apartments investment.


  • Gdańsk, Poland



  • Mechanical, Electrical and Plumbing
  • Green Building Design
  • (View all)

Project Status

  • under construction


Heweliusza 18 and Rajska 8: a Unique Revitalisation Project

Buildings at Heweliusza 18 and Rajska 8 Streets are a two-stage investment located in Gdańsk. It consists in the construction of an office building and a neighbouring residential development within a unique revitalisation: it is one of a few Polish revitalisation projects including such wide area located in a historic agglomeration center.

Usable area
40,000 m²
Powierzchnia biurowa
7,910 m²
Number of apartments

Characteristics of Heweliusza 18 and Rajska 8 investment

The first part of the investment is a building located at Heweliusza 18 Street. It is a 10-storey office development with area of almost 8,000 m². The second part is an exclusive residential building with additional commercial function. The area of the whole part is approx. 12,000 m² and the number of apartments is 167. The ground floor of the building serves as commercial area.

WSP's services for the investment

The investment sets new standards in the field of technical solutions, especially ventilation and air conditioning. WSP team is responsible for mechanical and electrical designs for both buildings as well as BRREAM certification for the office part. The basis of the project from our side was multidisciplinary coordination.

Heweliusza 18 office building obtained BREEAM certificate on "excellent" level, which is a very good rating, primarily thanks to the cooperation of various divisions of our company. We performed for it additional studies in the area of sustainable development: energy modelling, thermal comfort analysis and daylight access analysis.