the question
Heijmans Vastgoed asked Boltt to take on the technical design of two residential towers with roof gardens in Katendrecht, Rotterdam. The project forms part of the transformation of this former dockland area and provides 375 apartments within approximately 35,000 m² of gross floor area, together with a range of shared facilities for young professionals in Rotterdam.
The transfer of the building to IC Netherlands had been determined at an early stage. While this offered clarity, it also meant that Boltt had to manage a compressed design and development process.
the approach
From the preliminary design onwards, the project was developed as part of a construction team together with contractor Heijmans Woningbouw. In addition to the design work and technical development of the scheme, Boltt played a coordinating role and facilitated the BIM process throughout. The construction team met weekly in Rotterdam, allowing decisions to be taken quickly and the process to move forward with both speed and care.
The detailing was developed in close collaboration with Heijmans Woningbouw and its subcontractors. Because these subcontractors also contributed to the process as part of the construction team, the model and detailing took shape at a relatively early stage. As a result, fewer changes were required later in the process. This led to a key question: could the prefabricated structural elements already be produced during the design phase? In other words, how could the process be organized as efficiently as possible t?
“The short construction time was made possible by close collaboration and thorough technical preparation from the outset. We coordinated the detailing and the building model with great care, resulting in a reliable BIM model throughout the process.”
Marcel Bakker, Senior Technical Designer at Boltt
The result
By committing to prefabrication at an early stage, the construction period could be shortened and the process organized more efficiently. The design teams, contractor, suppliers, and manufacturers were able to collaborate in BIM and deliver integrated prefabricated elements directly to the site. Not only were prefabricated concrete elements used for the structural shell and exposed concrete, but the timber-frame facade infill was also delivered as prefabricated elements, complete with glazed window frames, and installed in a single operation.
This approach, combined with a tight schedule and strong execution by the contractor, enabled Cobana to add high-quality, affordable housing to a changing part of the city.
client
Heijmans Real Estate
year
2016–2019
services
BIM Coordination
BIM Implementation
Image
Photography by Kees Hummel
collaboration
Bartels Engineering, Heijmans Residential Construction, IC Netherlands, IMd Consulting Engineers, ISIS Construction Consulting, Koning Real Estate Consulting, Nieman Group Utrecht, Rijnboutt, Rockfield
Want to shorten the implementation time?
We streamline the BIM process and coordinate effectively with the other project partners to support an efficient delivery process. Would you like to know more?
Call Jurriën at 06 – 14 85 35 74
Or feel free to email jurrien@boltt.nu
More work we're proud of at
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