The Urban Environment House in Helsinki demonstrates how modern design, sustainability and high-performance glass can transform public architecture. We contributed to the project by supplying insulated glass solutions that support energy efficiency, daylight and visual quality.
Architectural Vision and Public Function
Designed by Lahdelma & Mahlamäki Architects and completed in 2020, the Urban Environment House brings together all services of the Helsinki Urban Environment Division. The building is located in the former industrial area of Verkkosaari, which is now a growing district. It offers 41,000 m² of workspace for around 1,500 employees and provides public areas such as an auditorium, café and exhibition spaces.
The architecture combines modern functionality with references to the city’s history. Materials such as brick, concrete, wood and copper create a strong identity. At the same time, large openings, double-height spaces and street-like passages promote collaboration, openness and natural light.

High-Performance Glass for Light and Comfort
Daylight was a key element in the design. Generous window surfaces allow natural light to penetrate deep into the interior, which reduces the need for artificial lighting. Glassense delivered more than 7,000 m² of insulated glass units to this project. To achieve high energy performance we used Guardian SunGuard SN 70/35 and low-iron glass.
These glass types provide high light transmission while offering solar control, preventing overheating in summer. In addition, their excellent thermal insulation improves indoor comfort and reduces energy consumption. The neutral appearance ensures a modern façade, while low-iron glass delivers clarity and true colour, which enhances the building’s visual quality.

Sustainability and Long-Term Value
The Urban Environment House is a nearly zero-energy building. It features on-site solar panels and a 5,000 m² green roof with more than 22,000 plants. As a result, the building supports biodiversity, retains stormwater and improves the urban microclimate. In addition, the floor plan is flexible, allowing the spaces to adapt to future needs.

Recognition and Excellence
The project has received international recognition. It holds a BREEAM Excellent certification, one of the world’s leading sustainability standards for buildings. Furthermore, it won the Tekla BIM Award, which highlights advanced use of Building Information Modeling (BIM) in design and construction.
By combining architectural vision, energy-efficient solutions and innovative glass technology, the Urban Environment House sets a new benchmark for sustainable public buildings. We are proud to have played a key role in its success.
