The House of Delft: the art of maincontracting

INTOS' role as prime contractor

At INTOS, we are responsible for coordinating and executing the entire construction process of the House of Delft. Our team of project managers, engineers and construction specialists work closely together to ensure that every aspect of this project runs smoothly.

The 53 flats on the upper floors of this multifunctional building have now been completed. INTOS has been appointed as the main contractor for the ground floor, which will be transformed into an auditorium, an Innovation Gallery, a starred restaurant and other facilities.

Significant work is currently required before artist Job Smeets can install his art object - a continuous 2,000 sq m tile tableau.

Craftsmanship and cooperation in practice

John Winkel and Marc van der Veer are in Delft every day to coordinate the execution of the main contracting for INTOS Maincontracting. Although Maincontracting is not our core business, the role of this team is growing in importance.

Team Maincontracting coordinates and manages the execution of the construction project. This includes managing subcontractors, purchasing materials and monitoring planning and budget, as well as supervising compliance with building regulations and safety standards. John and Marc act as the central point of contact for the client and ensure that all parties work well together.

John says: 'We have built up a reliable construction team over the years. Sometimes 20-25 people from different companies work on site at the same time, which makes a good atmosphere essential, especially when problems arise. For example, before we were involved in this project, a previously installed concrete floor proved unsuitable. It now has to be completely replaced, including the pipework that has been damaged.

We are currently finishing the steel frames on the ceiling, with the contour of the house on the facade continuing into the ceiling. This is being carefully prepared for the artwork that will be installed later.

Maincontracting offers the chance to closely follow the entire construction process, from the concrete pour to the laying of the last plinth. If everything goes according to plan, we will complete during 2025. It would be an honour to admire the final result then with a group of INTOS employees and realise that we have contributed to a global tourist attraction.'

Innovation and sustainability

The Delft House has been designed with a strong focus on sustainability. The building will be equipped with energy-efficient systems such as solar panels and rainwater harvesting to minimise its carbon footprint. Sustainable building materials will also be used that will both benefit the environment and extend the life of the building.

At INTOS, we strive for projects that not only meet the highest standards, but also have a positive impact on the community and the environment. The House of Delft is a great example.

Scope of the project

For an idea of the scope of the project, here is an overview of the materials used for Huis van Delft:

• 21 tonnes of steel
• 7500 m² of drywall (2100 plasterboards)
• 10.5 km of metal stud profiles
• 187,000 drywall screws
• 375 m³ insulation
• 500 m² of plywood
• 17 m³ of pine

For more information on the House of Delft and our other projects, visit the website of House of Delft