783 research outputs found
Transformatiepotentiemeter
No full textOm op een efficiënte en systematische manier te kunnen vaststellen of een leegstaand of leegkomend kantoorgebouw voldoende potentie heeft om te worden omgebouwd tot woningen, is de zogenaamde Transformatiepotentiemeter ontwikkeld (Geraedts en Van der Voordt, 2000, 2003). Kort gezegd is dit een checklist met vetocriteria en graduele criteria, waarmee kan worden bepaald welke kenmerken van de locatie en het gebouw gunstig of ongunstig zijn voor succesvolle transformatie. Snel en globaal (Quick Scan) of meer gedegen en gedetailleerd (Haalbaarheidscan). De meter is door verschillende marktpartijen in de praktijk toegepast. Ook afstuderende bouwkundestudenten hebben er veelvuldig gebruik van gemaakt. Zoals het goede studenten betaamt, hebben zij het instrument kritisch tegen het licht gehouden. Zie hiervoor onder meer de afstudeerscripties van Nicole de Vrij, Klaas Jan Boer, John Magielsen, Kawai Pang en Niels Jongeling. Op basis van de toetsing in de praktijk is de oorspronkelijke Transformatiepotentiemeter geëvalueerd en verbeterd. Toegevoegd zijn twee nieuwe stappen: Scan financiële haalbaarheid en Checklijst risico’s planvorming. Hiermee kan de haalbaarheid van een transformatieproject verder onderzocht worden. In dit hoofdstuk beschrijven we de nieuwe Transformatiepotentiemeter en positioneren we dit instrument in de besluitvorming over een GO/NO GO in de initiatieffase. Voor deze bijdrage zijn interviews gehouden met bij transformatie betrokken partijen in Nederland. Aan hen is onder meer de vraag voorgelegd, welke aspecten zij op locatie- en gebouwniveau het meest belangrijk vinden voor een kansrijke transformatie. Verder is gebruik gemaakt van uitkomsten uit onderzoek naar woonwensen in relatie tot locatie- en gebouwkenmerken.Accepted manuscriptDesign & Construction ManagementReal Estate Managemen
A second chance for old buildings
No full textIn the Netherlands, both the office market and housing market show a mismatch between supply and demand, quantitatively and qualitatively. In 2007 almost 14% of all offices are vacant, i.e. 5.9 million square meters. At the same time we see a shortage of about 1 million dwellings. A building must be able to be changed over its life cycle to adapt to the inevitable evolving needs of it’s end users. The first real challenge is how to make adaptable buildings without creating unnecessary redundancy. The second challenge is the re-use of old vacant buildings because the available area for erecting new ones is very scarce in the Netherlands. In this matter, old buildings deserve a second chance in their life cycle. We need to be able to measure the transformation potential of office buildings both at location and at building level. To this end, we have developed what we call a ‘transformation potential meter’ (Geraedts, Van der Voordt, 2003, 2004). The meter has been tested since 2004 in practice by a number of market players, and by students of architecture. This has allowed the transformation potential meter to be evaluated and refined in 2006. Two new steps - the financial feasibility scan and the risk assessment checklist – have also been added. In this paper, we describe the principle of the new transformation potential meter.Design & Construction ManagementReal Estate Managemen
FLEX 4.0, A Practical Instrument to Assess the Adaptive Capacity of Buildings
No full textAbstractAdaptive buildings are green buildings. But the question is: how to measure green? A direct connection can be made between adaptive building and sustainability. Market developments show increased demands for flexibility and sustainability by users and owners as well as a growing understanding of the importance of a circular economy. Since 2014 a research project at the Delft University has been investigating the adaptive capacity of buildings. As one of the results several versions of an instrument to assess the adaptive capacity of buildings have been developed since. The last version FLEX 4.0, amongst others based on the support and infill theory of Habraken [1], is described in detail in this paper, including all flexibility key performance indicators, the different default weighting factors, their assessment values and some examples to determine the flexibility class of buildings. This paper thus presents a complete assessment instrument that can be used in practice
Leegstandrisicometer
No full textIn zijn bijdrage over de gelaagdheid van leegstand pelt Willem Keeris de leegstand af tot het niveau waarop leegstand echt problematisch is en transformatie een interessante optie kan zijn. Aanloopleegstand, mutatieleegstand en frictieleegstand moeten als een normaal onderdeel van het verhuurproces worden beschouwd, aldus Keeris. De echte problemen zitten in langdurige leegstand die de fase van frictieleegstand overschrijdt, operationele leegstand door een laag prestatieniveau, en kansarme/kansloze structurele leegstand. Een belangrijke vraag is of hierop valt te anticiperen. Is het mogelijk om te voorspellen welke kantoorgebouwen als eerste in de gevarenzone komen, wanneer het aanbod aan kantoorruimte de vraag naar kantoorruimte overtreft? Welke kenmerken van de markt, de locatie en het gebouw zijn hierin doorslaggevend? Hoe kan op getrapte wijze, van quick-and-dirty naar grondig en gedetailleerd, een scan plaatsvinden van de kantorenvoorraad op het vroegtijdig signaleren van dreigende leegstand en het vaststellen van potenties en risico’s van behoud als kantoorgebouw?Accepted manuscriptDesign & Construction ManagementReal Estate Managemen
Extended construction supply chain management:relationships, rewards and risks
No full textOver the past decade, the UK construction industry has sought to exploit the rewards of supply chain management practice. This paper explores construction industry capability to implement an extended construction supply chain culture. Where commercial solidarity prevails and integrated supply chains, including small and mediums sized enterprises (SME\u92s) vie for construction projects and economic advantage. Despite recent advancements in construction supply chain management many barriers continue to inhibit the realisation of fully extended construction supply chains. Economic, social and cultural conventions require to be investigated to appreciate the complexity associated with the strategic alignment of extended supply chain stakeholders\u92 interests. Drawing on a model of supply chain maturity, the practicalities of extended construction supply chain relationships, rewards and risks are reviewed. Given the current structure of the construction industry, it is proposed that the attainment of extended construction supply chain management practice will require key industry stakeholders to develop innovative collaborative policies that will be progressive, organisationally supportive and commercially attractive to SME\u92s
Proceedings of the MISBE2011: International Conference Management and Innovation for a Sustainable Built Environment
No full textManagement in the Built EnvironmentDesign & Construction ManagementPublic Commissionin
A tool to measure opportunities and risks of converting empty offices into dwellings
No full textIn the Netherlands, both the office market and housing market show a mismatch between supply and demand, quantitatively and qualitatively. In 2007 almost 14% of all offices are vacant, i.e. 5.9 million square meters. Experts judge at least 1 million m2 as having no chance at all to be let again as an office. At the same time we see a shortage of about 1 million dwellings. This paper discusses opportunities and risks of converting empty offices into houses. A checklist will be presented that can be used to support the decision whether or not starting a transformation process and a number of go/no go decisions later on. This checklist is partly based on a literature survey on user requirements and preferences with respect to office accommodation and housing, and partly on interviews with parties involved in transformation processes in the Netherlands. The interviewees were asked which features of locations and buildings they considered to be most relevant. An earlier draft of the method has been tested in practice by market players and students of architecture. The five steps method - from quick and dirty to a more thorough, detailed study - include an analysis of the local market and critical characteristics of the location and the building(s), an economic feasibility study and a check on a number of risk factors from a functional, architectonical, juridical and technical point of view. Using veto criteria and gradual criteria, the method shows which features of the location and the building favour successful transformation, and which hinder it.Accepted manuscriptDesign & Construction ManagementReal Estate Managemen
FLEX 3.0: An instrument to formulate the demand for and assessing the supply of the adaptive capacity of buildings
No full textMarket developments show increased demands for flexibility and sustainability by users and owners of buildings. A direct connection can be made between adaptive building and sustainability. The longer a building can keep its functional life cycle instead of becoming vacant or being demolished, the more sustainable a building will be. One way of looking into this phenomenon is the more a building is flexible and able to adapt to changing user demands, the longer it will keep its functional life cycle. In 2014 a paper was presented at the International Union of Architects World Congress UIA2014 in Durban SA, titled Adaptive Capacity of Buildings. A report was given of an extensive international literature survey and the development of a method to determine the adaptive capacity of buildings. In total 147 flexibility indicators were described with accompanying assessment values. The most important recommendation for the next step was the development of an easy to use assessment method in practice with a limited number of important adaptability performance indicators.Further research led in 2015 to a renewed assessment method with 83 indicators, clustered in five layers with different life cycles. This method was called FLEX 2.0 and a derived version was called FLEX 2.0 LIGHT with only 17 of the most important indicators. This was presented in 2015 at the CIB Conference - Going North for sustainability in London. At the same time this method was used in two separate research projects for an evaluation with experts in practice. One research project concerned the development of school buildings; the other project was related to the development of office buildings. The main conclusions and recommendations of both research projects to evaluate the FLEX 2.0 method in practice with two different types of real estate will be described in this paper. Questions will be answered about the differences and similarities between the two different categories of real estate when using this flexibility assessment method. This will lead to some important conclusions for the next version of the method: FLEX 3.0. Finally a renewed framework for this next version will be presented.Design & Construction Managemen
Conversion Potential Assessment Tools
No full textBuilding owners and other stakeholders can adopt different strategies to cope with vacancy, such as consolidation, rent reduction, selling the building, renovation, transformation and conversion to adapted reuse, or demolish and build a new building. This chapter discusses various tools to cope with vacancy by adaptive reuse. It presents an overview of the many factors and aspects that enable or hinder adaptive reuse by conversion of (office) buildings into housing, and how to assess the characteristics of the market, location, building and involved stakeholders. Furthermore, it presents the Conversion Meter, a tool to assess the conversion potential of vacant office buildings into housing. The tool is built up from a first quick scan using veto criteria (Step 1) till a more detailed scan of the conversion potential based on gradual criteria (Step 2). No single gradual criterion is sufficient to decide if conversion is possible or not; it is the combination of all criteria i.e. the sum that provides a valuable indicator for the conversion potential. Step 3 calculates a conversion potential score as a weighted sum of all criteria. Step 4 is a scan on financial feasibility. The final Step 5 is a check on possible risks and opportunities to eliminate these risks. The chapter continues with lessons learned from case studies by applying the Conversion Meter.Accepted Author ManuscriptDesign & Construction ManagementReal Estate Managemen
Offices for living in: An instrument for measuring the potential for transforming offices into homes
No full textA large number of office premises seem difficult to rent out because they no longer meet the demands of the market. A solution must be found for these premises and also for office buildings that have been empty for longer periods. Reallocation or transformation to other functions such as homes can be envisaged here. In addition, due to the lack of available locations for building homes, corporations and project developers are desperately looking for alternatives. The transformation of offices into homes can also be a good option for this objective. In the current study answers are provided to the questions: how many and which office buildings stood empty in a particular area of Rotterdam; which groups of households can be identified for the transformation of empty office buildings into homes; what is the demand profile of these groups; and with which instruments can the transformation potential of empty or soon-to-be empty office buildings be measured.Conclusions and recommendationsAn important veto criterion for the transformation process is the dovetailing with the council policy; offices in residential areas should in preference be transformed into dwellings. Favourable features such as the availability of parking spaces, a positive ambience and other characteristics of an area suitable for working in increase the chance of renting as office space. Old buildings in the area, a bad net/gross ratio, poor energy performance and structural deterioration are, in contrast, unfavourable factors when renting out office buildings. Buildings with these characteristics are more readily considered for transformation. The type, accessibility and size of the dwelling are of critical importance when weighing up the decision of whether to rent or buy a particular home. Priorities vary between target groups. The lay out of the dwelling and the level of relaxation provided appear to be of secondary importance. People seeking accommodation are more concerned with the distance to a tram, bus or metro stop and a railway station, and less concerned with the frequency of public transport.A number of test cases have shown that the developed Transformation Meter is a good tool for assessing for specific city areas (step-by-step, from a global to a detailed perspective) what the market supply of empty office buildings is, what the market demand is with regard to target groups and requirements, and the match between the two from the point of view of availability and buildings.Accepted manuscriptDesign & Construction ManagementReal Estate Managemen
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