Sustainable Heritage and PPS 5 Is Sustainable Heritage an Oxymoron? Andrew Tegg – DPP Heritage Mary Rawlinson – DPP Sustainability Emerging Contexts for Heritage Conservation 23 rd February 2011 Leeds
Introduction to DPP LLP • Established in 1973 • 10 offices across the UK and Ireland • 160 Partners and Staff • ISO 9001 registered • Full range of planning services • Planning • Heritage • Sustainability • Urban Design
Introduction • Why does heritage planning need to be sustainable? • Requirements of PPS 5 • Available guidance • The sustainability viewpoint • Case Studies
Why does heritage planning need to be sustainable:
Why does heritage planning need to be sustainable: Existing homes will make up 2/3 of the housing stock in 2050, ¼ of the existing stock are what can be considered traditional. 46% of CO 2 emissions come from dwellings….
Strong foundations…. • Historic settlement layouts reflect sustainable principles in spatial planning (residential, commercial and leisure resources in settlement centres) • Historically heating your property was expensive so thick walls and small openings • Buildings were constructed using local materials • Therefore good foundations for sustainable living within historic assets
Two distinct areas of consideration: • Large scale infrastructure projects • Small scale site specific projects
Requirements of PPS 5: Para 6… Planning has a central role to play in conserving our heritage assets and utilising the historic environment in creating sustainable places… Key policy…. . HE 1 – Heritage Assets and Climate Change • HE 1. 1 - Importance of seeking opportunities to mitigate and adapt to the effects of climate change when devising policies and making decisions relating to heritage assets so as to reduce carbon emissions and securing sustainable development. • Opportunities include energy efficiency, improving resilience, better use of renewable energy, sustainable use of water
Requirements of PPS 5: Key policy…. . HE 1 – Heritage Assets and Climate Change • HE 1. 2 – Where proposals that are promoted for the ability to mitigate climate change have a potentially negative impact, LPA should prior to determination and ideally during pre-application help applicant to identify feasible solutions to deliver benefits with less harm to heritage assets. • HE 1. 3 – Where conflict is unavoidable public benefits should be weighed against potential harm to heritage assets in accordance with other policies in PPS 5 and other documents.
Assessment process: Potential for pre-app as per HE 1 Proposal HER searches/site assessment - identify physical impacts/setting Identify Assets Assess significance of assets and wider settings Assessment of Significance Assessment of Impacts HE 7, HE 8, HE 9, HE 10 Does the proposal cause harm – is it substantial? HE 9. 2 or HE 9. 4 Consideration against PPS 5 Policies Consideration against local policies Do benefits outweigh harm? Decision Local policy, SPD etc
Other guidance available Various documents been prepared by English Heritage to provide guidance and advice to applicants and decision makers….
Other guidance available
Opportunities Historic Environment Planning Practice Guide suggests opportunities to achieve objectives • Production of SPD – using skills and knowledge of heritage and sustainability experts to set out ways in which heritage assets can be modified to improve their environment performance without damaging significance. • Prepare plan policies for particular assets or asset types to manage conflicts. Promote improved standards through design and awards. • Take account of positive role historic environment can make to achieving climate change aims. • Consider best practice through LDF annual monitoring reviews.
Opportunities Large scale energy generation and other infrastructure (Para 26 – Planning Practice Guide) • Balancing benefits in renewable energy with potential to impact on large number of differing types of heritage asset. • Importance of early discussion and co-operation between developer and local authority – try to establish acceptable balance. • Scope for LPA’s to prepare specific policies for handling such applications.
The sustainability viewpoint • Triple bottom line
The Oxymoron Draughty old buildings, with untouchable façades… Chandlerkbs. com Sleek and Modern Green Bling RE World. com
Blame Cycle Occupiers “We would like to have environmentally efficient buildings to fulfil our policy commitments, but there aren’t any. ” Investors “We would fund environmentally efficient buildings but there is no demand for them. ” Developers “We would ask for environmentally efficient buildings but the investors won’t pay for them. ” Sir Martin Laing’s Sustainable Construction Task Group Constructors “We can build environmentally efficient buildings but the developers don’t ask for them. ”
National Trust Six L’s Longevity Loose-fit Lovability Liked by Occupiers Low Carbon Location
Evidence for Sustainability • • • RICS study, Doing well by doing good? identified: • energy-efficient buildings attract rental premiums of more than 6%; • "green" buildings worth 16% more than standard stock; • a high Energy Star rating attracted 3% per sq ft more rent compared with nongreen buildings of the same size, location and function; • Including rent-free periods and other concessions, the premium rose to 6%; • sale price of "green" buildings was more than 16% higher; • upgrading the average non green building would increase its capital value by £ 3. 85 m Tenants and investors would pay more for an energy-efficient building, but not for buildings that were sustainable in a broader sense. Non-green buildings will eventually become an outdated model.
Return on Investment • 95% of unlisted UK and continental European real estate fund managers believe there is a relationship between environmental performance and financial returns. However, the majority felt this relationship was difficult to quantify at the current time. ” Aviva Investors and the Environment Agency Pension Fund survey in May 2009
Case studies – The Grange, Seacroft • Re-occupation of a long empty site • Within a district centre for access • Sustainability measures included
Case studies – MOJ, Marylebone Courtesy Shove media • Technologies included • Other measures • Solar water heating • High performance glazing • Ground source heating • Thermal mass • Ground source cooling • Shading • Rainwater harvesting • Air permeability rates
Case studies – Tesco Express • • • Signage Issues Character preservation Energy efficiency Emissions Materials • • Refrigeration Water consumption Recycling Travel
Sustainability Conundrums • Market value of a conserved building • Cost of conservation • Conservation as a catalyst • Building appreciation
Summary • Important to understand promote the energy saving credentials of historic assets. • Wherever possible early discussions should be completed between all parties. • Substantial advice available. • Conservation appreciation
Contacts: Andrew Tegg Principal - Heritage Telephone: 0161 238 9884 Email: andrew. tegg@dppllp. com Mary Rawlinson Principal Consultant - Sustainability Telephone: 0207 092 3611 Email: mary. rawlinson@dppllp. com
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