Green Transformable Building Lab

EU Lab for Circular Buildings

The GTB Lab building is built as a labaratory of circular buildings, where circular building methods will be tested and demonstrated. It stands for an innovation platform for a waste-free construction where the credo applies: ‘demolition waste is a design error’ says Elma Durmisevic, founder and creator of GTB Lab©. Buildings that are dynamically and flexibly constructed of reusable materials have an essential driving function in the transition to a circular (building) economy. They serve, as it were, as temporary storage places of valuable building materials. In circular construction, not a brick, not a screw is thrown away. That is the idea behind the Green Transformable Building Lab (GTB Lab©) in Heerlen.


Project Info

Location: GTB Lab, In de Cramer, Heerlen, Netherlands
  • URL source
  • Date of start construction: 01/02/2021.
  • Date of completion: 01/08/2022.
  • Lifespan building design: 100 year.
  • Type of building transformation: new building.
  • Building function: Multifunctional.
  • GFA (m2): 80.
  • Usable area (m2): 63.
  • Building’s surface area of heat loss (m2): 385.
  • Gross volume (m3): 326.
  • Plot size (m2): 4000.
  • Construction status: New.
  • Owner: Stichting GTB Lab.
  • Sector of owner: nonprofit.
  • Public investors: IBA Parkstad, Provincie Limburg, Stadsregio Parkstad Limburg, Municipality of Heerlen (Gemeente Heerlen) and Dutch Ministry of Internal Affairs..
  • Architect(s): 4D Architects, Elma Durmisevic.
  • Industry consortium: Jansen Building Systems by ODS, Pilkington, De Groot Vroomshoop Groep, AMMANU - LED Intelligence, TheNewMakers, Staatsbosbeheer, Rodeca, 4D Architects Amsterdam, ABT, Adviesbureau Brekelmans, MJB, Rusman, Jongen Bouwpartners.
  • Construction costs: € 1.525.700.
  • Hazardous materials: No.
  • Total mass (ton): 500.
  • Reusable mass (ton): 355.
  • Reused mass (ton): 47.
  • Total carbon (CO2): 239.
  • Reusable carbon (CO2): 218.
  • Reused carbon (CO2): 80.
  • Circularity profile: 4.
  • Number of elements: 1408.
  • Number of disassembly steps: 10.
  • On-site renewable energy production (kWh/y): 300.
  • Energy demand (kWh/m².y): 4300.
  • Number of new trees: 10.
  • New green area in urban environment (m2): 3750.
  • Outstanding: 1.
  • Circular Building Infrastructure and Marketplaces: Design & Living Labs.
  • Field: Platforms & Cooperatives.