Poland: SPIE installs multi-technical solutions for the landmark Upper One building in Warsaw

Warsaw, 1 December 2025. SPIE Stangl Technik sp. z o.o., a Polish subsidiary of SPIE, the independent European leader in multi-technical services in the areas of energy and communications, has commenced installation works in the prestigious Upper One office building in the centre of Warsaw. The company will deliver a full suite of technical systems, including HVAC and electrical installations, designed to meet the building’s ambitious energy performance targets.

Upper One is a modern, technologically advanced, 34-storey Class A office building with five additional underground floors. Located at the junction of the Śródmieście and Wola districts, it offers approximately 36,000 square metres of office space on the site of the former Atrium International. The building is designed to meet the highest environmental standards,  targeting LEED Platinum and WELL certification in line with its outstanding energy efficiency and superior occupant comfort and wellbeing. Its glass façade, high standard of finishing and advanced building systems make it one of the most attractive and prestigious office locations in Poland. 

The investment is scheduled to be completed in 2027. SPIE Stangl Technik plays an important role in the work on the building.

Scope of work performed by SPIE Stangl Technik

SPIE Stangl Technik is installing high-performance heating and cooling systems, advanced ventilation, fire safety infrastructure, and electrical networks. From heat recovery and air conditioning to uninterruptible power supply (UPS) systems, power generation, and electric vehicle charging stations, SPIE is mobilising the full range of its technical expertise to deliver a resilient and energy efficient building environment.

The project manager is Marcin Balcerczak from SPIE Stangl Technik.

The project is underway in challenging site conditions due to the restricted construction area and the logistical complexity of vertical and horizontal transportation. These constraints, which impose meticulous planning and the use of specialised equipment, highlight SPIE’s operational excellence and experience in managing technically demanding projects.

“Upper One will stand out for its advanced infrastructure, innovative construction technologies and ambitious sustainability targets. Our specialised installations will be a key contributor to the success of this flagship development. We are proud to be part of the project and extend our thanks to the general contractor, STRABAG Sp. z o.o., and the investor, STRABAG Real Estate, for the trust they have placed in us,” said Piotr Jasiński, Branch Manager of SPIE Stangl Technik in Warsaw.

About Upper One:

The Upper One office building project has been awarded “Best Market Practice” status according to an independent ESG assessment conducted by international consulting firm Cushman & Wakefield. The analysis covered ten key criteria related to environmental, social, and corporate governance impact. The building also stands out for its striking and functional architecture.                                     

With a total surface area of 56,881 square metres, the building will feature a heating capacity of 4,900 kW, cooling capacity of 4,220 kW, and ventilation capacity of 280,000 cubic metres per hour. Its electrical infrastructure will include a 3,900 kW power supply, a 15 kW UPS system, a 1,500 kVA generator, and four transformers of 1,600 kVA each. Five 11 kW electric vehicle charging stations will further support its commitment to sustainable mobility.