BSEE HIGH PERFORMANCE BUILDINGS Authors


Andy Lewry, James Fisher and Ma Holden discuss how sustainability results in high performance buildings.


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THE VALUE OF PERFORMANCE How sustainability achieves results


By Dr Andy Lewry, Principal Technical Consultant, BREEAM Exisng Buildings Team, BRE Global T


uFigure 1: Studies on the rentable value for green buildings – reproduced from ‘Business case for green building’, World Green Building Council report, 2013.


he management of real estate investments is aimed at maximising property value and return on investment and in the current highly competitive market place the “Challenges for Real Estate Clients” are:


uIncreasing profit; uMaintaining competitive edge; uDriving asset yield; uMinimising voids; u‘Being the best on the street’; uHigh productivity workspaces.


A barrier to change is split responsibilities within the real estate sector and traditional positions are now being challenged as the valuers now are changing their position from “paying a premium for green buildings” to “having to give a discount because the building is not performing well”.


High-performing buildings provide a solution in that they have been shown to generate maximum profit via: uAsset protection; uHigh and continuous rental income; uLow operating & maintenance cost; uLow depreciation issues.


This is supported by the increase in rentable value shown by studies to be a maximum of 25% with an average of between 5-10% (see Figure 1). This is further illustrated by the case study on the next page.


Early engagement


The earlier you engage with sustainable design principles the more chance you have to influence the sustainability of the project at a lower cost – see Figure 2. At the planning and pre-design stages there are opportunities through economies of scale, site-wide solutions and greater flexibility in design or decisions to be made.


Realising the beneflts


The benefits of high performance buildings can be realised by the use of certification. As a process it facilitates:


uClient engagement; uCommunication within project teams and between developers and their clients;


uFigure 2: The window of opportunity for high performance design.


uCommon language: standards, methods and data flows.


With 3rd party certification it realises the following benefits: uAssurance for clients, investors and other stakeholders; uComparability across building types and countries; uBased on sound science and standards; uOne step ahead of legislation and industry best practices.


Buildings already in operaon


However, you also need to consider the operational phase with schemes such as:


12 BUILDING SERVICES & ENVIRONMENTAL ENGINEER NOVEMBER 2018


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