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Guidance

Climate Emergency Design Guide

We are in a climate emergency, and urgently need to reduce carbon emissions, this guide outlines the requirements of new buildings to ensure our climate change targets are met – setting out a definitive journey, beyond climate emergency declarations, into a net zero carbon future. It is specifically aimed towards developers/landowners, designers, policy makers, and the supply chain. It aims to help to define ‘good’ and to set clear and achievable targets.

The Climate Emergency Design Guide covers 5 key areas: operational energy, embodied carbon, the future of heat, demand response and data disclosure. Our methodology includes setting the requirements of four key building archetypes (small scale residential, medium/large scale residential, commercial offices, and schools). The guide was developed by over 100 LETI volunteers over a period of 12 months.

This guidance demonstrates that the building industry knows how we should be designing buildings. In 2020 buildings that adopt these requirements now will be seen as leaders. By 2025 these requirements must become standard design practice otherwise the building industry will not meet our collective responsibility in this climate crisis.

LETI believe that in order to meet our climate change targets, in 2020 10% of all new projects developers and designers are involved in, should be designed to meet the requirements set out in this guide.

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Author: LETI

Publication date: January 2020

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Guidance

Embodied Carbon Primer

The Embodied Carbon Primer offers supplementary guidance to the Climate Emergency Design Guide, for those interested in exploring embodied carbon in more detail. There is a current lack of knowledge in the built environment industry surrounding embodied carbon reduction strategies and calculations. Therefore, the London Energy Transformation Initiative has produced this document to support project teams to design buildings that deliver ambitious embodied carbon reductions.

The document can also aid planners to be aware of strategies available to designers to reduce embodied carbon in building design, and how planning recommendations on materials, massing and treatment of sites may affect embodied carbon.

For everyone working in the construction of buildings, the leap of knowledge and skill required to be able to fulfil this goal is still relatively large, but far from insurmountable.

Author: LETI

Publication date: January 2020

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Guidance

Acoustics, Ventilation and Overheating Guide

It recommends an approach to acoustic assessments for new residential development that take due regard of the interdependence of provisions for acoustics, ventilation, and overheating. Application of the AVO Guide is intended to demonstrate good acoustic design as described in the ProPG: Planning & Noise, May 2017 when considering internal noise level guidelines.


Author: Association of Noise Consultants

Publication date: January 2020

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Guidance Standard

Active House Specifications 3.0

Active House Specifications 3.0 outlines the specifications for designing an Active House, a building that integrates health and comfort with energy efficiency and environmental performance. The Specifications outline the technical specifications that determine the quality and performance of an Active House.


Author: Active House Alliance

Publication date: 2020

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Guidance

Net Zero 1-Pager

2019 has been a watershed year. The climate emergency is now acknowledged and there is widespread support for an acceleration of the transition to Net Zero Carbon.

By 2030 all new buildings must operate at net zero to meet our climate change targets. This means that by 2025 all new buildings will need to be designed to meet these targets. We therefore have five years to do it progressively so that it becomes the norm in 2025. We should start now.

Industry consensus has been established on the key features of Net Zero Operational Carbon buildings. This new 1-page summary was launched by the London Energy Transformation Initiative (LETI) on 16.12.19 at Feilden Clegg Bradley Studios.  

It is the result of a very successful industry consultation with more than 330 responses and has been developed in collaboration with the UK Green Building Council (UKGBC) and the Better Building Partnership (BBP). It is also supported by the Good Homes Alliance (GHA), the Royal Institute of British Architects (RIBA) and the Chartered Institution of Building Services Engineers (CIBSE).

Author: LETI

Publication date: December 2019

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Guidance

Whole Life Carbon Assessment for Architects

Increasingly, clients in all sectors are commissioning WLC assessments as part of the project requirements. This is primarily driven by environmental considerations but also makes economic sense. Important benefits of WLC assessments include: a better understanding of the sourcing and processing of materials and products; an understanding of long term post completion considerations such as maintenance, durability and lifespan; and making plain the carbon value of retaining existing built fabric.

Undertaking WLC assessments is recommended for all architects who wish to understand and minimise the carbon emissions associated with their designs over the entire life cycle of the building. The knowledge gained from WLC assessments further enables architects to take the lead in sustainable design and construction. Architects intending to undertake WLC assessments should also refer to the full RICS professional statement.


Author: RIBA

Publication date: December 2019

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Guidance

RIBA Sustainable Outcomes Guide

This guide defines a concise measurable set of eight sustainable outcomes that correspond to key UN Sustainable Development Goals and can be delivered on building projects of all scales.

The guide explains each sustainable outcome and their key metrics, and provides design principles to achieve the outcome and describes approaches that can be used to verify performance using post occupancy evaluation and certification. The guide supports architects in taking the RIBA 2030 Climate Challenge.

The RIBA sustainable outcomes are:

  • Net zero operational carbon
  • Net zero embodied carbon
  • Sustainable water cycle
  • Sustainable connectivity and transport
  • Sustainable land use and bio-diversity
  • Good health and wellbeing
  • Sustainable communities and social value
  • Sustainable life cycle cost

An outcomes-based design approach will help resolve the now well-known gaps between design intent and in-use performance across a range of metrics by reinforcing the feedback loop between briefing and outcomes, leading to a more sustainable built environment.


Author: RIBA

Publication date: December 2019

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Guidance

Guide to sustainable development in community led housing

This guidance, authored by architect Jon Broome for Community Led Homes, summarises the benefits of sustainability in community led housing and provides tips and tricks on getting support for sustainability matters at each stage of your project.

Author: Community Led Homes

Publication date: November 2019

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Further information: www.communityledhomes.org.uk

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Guidance

National Design Guide

The national design guide sets out the characteristics of well-designed places and demonstrates what good design means in practice.

It forms part of the government’s collection of planning practice guidance and should be read alongside the separate planning practice guidance on design process and tools.

Author: Ministry of Housing, Communities & Local Government

Publication date: October 2019

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Guidance

Design for a Circular Economy Primer

The Mayor has set out his vision of London transitioning to a circular economy in the draft London Plan and his Environment Strategy. The Design for a Circular Economy Primer has been written to help support organisations in the built environment sector understand how they can embed circular economy principles into their projects and design processes.

As part of the Mayor’s Good Growth by Design programme, our Regeneration, Environment and Planning teams have been working with the Mayor’s Design Advocates and the London Waste and Recycling Board (LWARB) and others, to conduct a research inquiry, supporting the development of technical guidance for the draft London Plan policy SI7, ‘Reducing waste and supporting the circular economy’.

The Primer is a summary of the direction the technical guidance will take.

Author: Mayor of London

Publication date: October 2019

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