Sustainable Buildings – The English Approach - Energy Efficiency ...

Sustainable Buildings – The English Approach - Energy Efficiency ...

Sustainable BuildingsThe English ApproachAustralian Sustainable Built Environment CouncilSydney Town Hall, 2 March 2010Sarah Sturrock, Deputy Director of Sustainable Buildings

New StockExisting StockA developing policy landscape …Target:Ambition:all new homes to bezero carbon from 2016all new non-domesticbuildings to be zerocarbon from 20192016 2019 20302050Consultation proposal:have made available costeffectiveenergy efficiencymeasures to allhouseholdsConsultation proposal:have reduced emissions fromhouseholds (and businesspremises) by at least 80%, andas far as possible beapproaching zero4

Starting with zero carbon new homes …• new homes to be zero carbon from 2016• zero carbon = “net carbon emissions from all energy use in thehome will be zero” (excludes embodies energy)• a design/build standard, but factoring in assumptions about in-useenergy – ie 100% reductions + further 50% to count for appliances• 3 steps:2010 25% improvement on 2006 regulatory standards2013 44% improvement on 2006 regulatory standards2016 zero carbon• Stamp Duty Land Tax relief for new homes built to zero carbonstandard for 5 years (1 October 2007 – 30 September 2012)5

Zero carbon for new homes …June 2009 – policystatement on definition ofzero carbon• energy efficiency standard – to drivefabric improvements (industry task forceasked to develop – proposed a passivestandard of 39/46 kWh/m2/yr – Govtcurrently consulting)321AllowablesolutionsCarbon compliance(on-site + connected heat)Energy efficiency• target of 70% reduction for „carboncompliance‟ ie further energy efficiency+ on site renewables, includingconnected heat• tackle remaining carbon emissions bychoosing measures from a limited list of"allowable solutions“ eg further on-site,high energy efficiency appliances,exports of low carbon or renewable heat,investments in low and zero carboncommunity infrastructure (& ongoing6consideration of a „buy-out fund‟

Encouraging the development of moresustainable homes …A single national standard to cover aspects ofsustainable design and construction of a homeEnabling developers to demonstrate thesustainability (above regulatory requirements)of their homes and differentiate themselves fromtheir competitorsAims to empower home buyers to drivedemand for more sustainable homesCame into effect at beginning of April 2007Just under 3000 homes withcompletion certifications,300,000+ registered for futurecertification.Some aspects show the future direction ofregulationsRequired for Government-funded socialhousing and by some local planningauthorities.10

Code for Sustainable Homes -Sustainability Rating SystemCode LevelEnergy (% betterthan Part L 2006)Water(litres/person/day)Other Pointsrequired 10% 120 33.3 18% 120 43.0 25% 105 46.7 44% 105 54.1 100% 80 60.1 Zero Carbon 80 64.99 categories for the Code:energy efficiency surface water run-off pollutionwater efficiency waste managementmaterials health & wellbeing ecology11

(Consultation on revisions due shortly)Expects planning authorities to:-Planning Policy Statement on Climate Change(PPS1)• engage constructively and imaginatively with developers and others to encouragedelivery of sustainable buildings;• support innovation and investment in sustainable buildings and not deternovel/cutting-edge developments.Recognises that there will be situations where appropriate to expect higher levels ofbuilding sustainability than set through building regulations.Enables Local Planning Authorities to set local requirements for sustainable buildings forknown opportunities where:-• warranted/allowed by demonstrable local circumstances.• viable and consistent with delivery against housing trajectory;• brought forward in development plan documents to ensure examination byInspector• specified in terms of the achievement of nationally described sustainable buildingsstandards – Code for Sustainable Homes in case of homes12

What does a sustainable home look like?Illingworth Estate, HalifaxThe first“saleable” Codehomes in thecountry to havebeencompleted.With the exception of thesolar panels, these homeslook no different on theoutside to the others in thedevelopment. Note thethickness of the walls on theinside.Part of anoriginal“Ecohomes”developmentfor the PennineHousing 2000built by BramallConstructionLtd13

What does a sustainable home look like?Mid Street, Nuffield in Surrey by Osborne for the Raven Housing TrustThese two homes have been designed and builtto achieve Code level 5, incorporating a 100%reduction of carbon emissions compared toexisting Building Regulations. Photovoltaic panelsand rainwater harvesting are two of thesustainability features in this development.Photographs: Jeannette Henderson and Geoffrey Osborne Ltd14

What does a sustainable home look like?Norbury Court,StaffordshireNorbury Court is a social housing development in Staffordshire by StaffordshireMoorlands District Housing Association. It is a terrace of 9 homes built to Codelevel 3 standards.15

What does a sustainable home look like?Ecotessey, NorfolkEcotessey Park is a private sector development of 22 three and four bedroomfamily terraced houses in the village of Costessey in Norfolk. It is designed tomeet Code level 3 standards.16

What does a sustainable home look like?CO2Zero, BristolCO2zero is a private sector development of live-work units in Bristol. There are 9two story live-work units built to Code level 5 standards.17

Developing a long-term plan for existinghomes …Household Energy Management Strategy (due in March)Issues under consideration from consultation last year:• prioritising cost-effective measures (given high UK energy prices) - by 2015, tohave implemented all measures like loft and cavity wall insulation where possible• supporting development of solutions and capacity to deliver comprehensive wholehouse solutions to at least 400,000 homes per year, aiming to deliver in asignificant number of homes (c. 7m in consultation) by 2020• considering regulatory options for the future• considering options for social housing stock, linked to a „Decent Homes 2‟programme• by 2050, have reduced emissions from households (and business premises) by atleast 80%, and as far as possible be approaching zero18

Mandatory declaration schemesEnergy Performance Certificates:• Reflect potential energy performance of the building, based on availabletechnologies, building control systems, etc• in part, UK implementation of EU Energy Performance of Buildings Directive• required for homes and non-domestic buildings at point of sale & rent• including rating and tailored advice on possible steps to improve energyperformance of buildings• reported to central databaseDisplay Energy Certificates:• reflect actual energy performance over a year• only currently required for public buildings – but some calling for extensions on thebasis of them being a powerful information tool that could help affect organisationalbehaviour & prioritisation 19

Impacts & challengesImpacts …• significant improvement in energyperformance of new buildings inlast decade• innovation drive• higher sustainability buildings• processes and technologies• industry buy-in to the direction oftravel• signs starting to show that initialcost-estimates of zc are comingdown• cross-sectoral engagement inworking through practical andtechnological issues - & learningfrom the Code for regulatory stepsChallenges …• current economic conditions in UK– supply v. quality balance• skills and experience acrossindustry• evaluating impact, particularlygiven the pace of change• ensuring compliance with regularlytightening regulations• potential for demand side „pullfactors‟ eg getting sustainabilityreflected in valuations• user behaviour20

Thank YouSarah SturrockDeputy Director,Sustainable BuildingsDepartment of Communities & Local