As the transformation of existing buildings is an ever-larger part of the architect’s portfolio, the research into the value and quality of existing structures gains importance. This research has long been the domain of art historians, who, in their cultural-historical investigations, evaluate (mostly monumental) buildings by positioning them within their time. Because these investigations only gives a limited understanding of the qualities of a building, this paper discusses the largescale physical model as a tool for the architect to understand the architectural qualities of a building and the relevance of using this knowledge as a basis for architectural transformations. This paper is based on a research project into the architecture of the Museum Boijmans van Beuningen in Rotterdam, the Netherlands. The original museum of 1935 was extended three times over the past century, making the ensemble an architectural collection that represents the changing insights into museum building over time. The museum is currently planning an overhaul that includes the demolition of its latest two extensions in favour of a new wing. The project’s hypothesis was that a study using 1:5 models as an analytical tool could enable an intimate understanding of the qualities of the museum. This could then lead to the design of a series of small-scale interventions, as an alternative to the unsustainable and expensive logic of demolition and new construction. Based on visit to the building, and therefore on a concrete, physical experience of its architecture, a series of six fragments were chosen that represent key architectural moments within the ensemble, such as a fragment of a façade or a threshold between two galleries. Together with a group of master students, these fragments were built at scale 1:5, using concrete, wood and plaster, mimicking the act of building the museum itself. On the basis of this study, a series of six transformation proposals for the museum were developed, varying from the adding of a staircase to reorganise the circulation through the museum to the introduction of a window to improve the relation between inside and outside. These interventions were based on the architectural themes present in the models and informed by the issues the museum organisation wished to address. Through the act of building the fragments of the museum in the studio, it was possible to acquire a refined understanding of the haptic qualities of the building’s architecture. In doing so, the models introduced a specific way of understanding architecture, one that locates the quality of the existing architecture in its details and its physical, material presence. This clearly influenced the transformation proposals, which all reinforced specific existing qualities of the building and acquired a similar precision and material quality as the 1:5 models itself. The project therefore shows how the act of largescale modelling can foster the skill to design precise, small scale interventions. In doing so, it shows the potential of the 1:5 model as a valuable addition to the tools of the architect when engaging in transformation projects. @en

This publication is the result of a MSc2 design course of the Chair of Interiors Buildings Cities (Faculty of Architecture and the Built Environment, Technical University of Delft) in the spring semester of 2019 entitled Babel: Interventions in Museum Boijmans van Beuningen.@en

Wherein lies the attraction of the roof? Why is it always an adventure to enter a roof, to become part of the skyline or peek over the edge, as if you had suddenly surfaced from something you had been unknowingly immersed in all along? For the occasion of the Rotterdamse Dakendagen 2019, Sereh Mandias looks for an answer to these questions. The essay explores the possibilities of the flat roof and the different ways in which these have been transformed into architecture – touching upon various points in history and loosely accompanied by a number of buildings by French-Swiss architect Le Corbusier.@en

Every station makes a statement about the encounter between rail and city. In this article Caspar Frenken and Sereh Mandias discuss two recently completed station buildings: Rotterdam Centraal and OV-Terminal Breda. The authors investigate how the interiors of these buildings derive their meaning from their relationship with the city, a motif architects returned to throughout the history of the design of railway stations. eder station doet een uitspraak over de ontmoeting tussen spoor en stad. In dit artikel bespreken Caspar Frenken en Sereh Mandias twee recent opgeleverde stationsgebouwen: Rotterdam Centraal en OV-Terminal Breda. De auteurs onderzoeken hoe de interieurs van deze gebouwen hun betekenis ontlenen aan hun relatie met de stad, een motief dat als een rode draad door de geschiedenis van het ontwerp van het stationsgebouw loopt. @en

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