All developments are required to ensure compliance with the applicable energy and sustainability standards stipulated in the London Plan (2015), London Borough of Hounslow Local Plan (2015-2030) and associated documents issued by the Mayor of London.
An Energy Statement should be submitted for applications in relation to:
New-build residential developments
Multi-occupation residential developments
Non-residential developments (including offices, commercial and industrial units)
Guidance on Energy Statements
View the latest guidance on producing Energy Statements ( PDF Help, size 442kb)
Developments are required to submit an Energy Statement demonstrating how the proposed development will reduce carbon dioxide emissions through utilisation of the energy hierarchy, as per the London Plan (Policy 5.2).
Carbon Dioxide Emissions Requirements
Major residential and non-residential developments are required to secure a minimum on-site carbon dioxide emissions reduction of 35% against a Building Regulations Part L (2013) compliant baseline.
Where sufficient evidence has been provided to demonstrate that the required target cannot be secured on-site due to the specific characteristics of the development, the associated shortfall in carbon dioxide emissions can be accounted for through a cash-in-lieu contribution to the council’s Carbon Offset Fund.
Minor residential and non-residential developments are expected to submit an Energy Statement demonstrating how the proposed development will utilise the energy hierarchy set out in the London Plan (Policy 5.2).
The London Borough of Hounslow expects all minor developments to aim for, and secure, a 35% reduction in carbon dioxide emissions against a Building Regulations Part L (2013) compliant baseline.
Carbon Dioxide Emissions Requirements (1st October 2016 Onwards)
From 1st October 2016 onwards, the London Plan (Policy 5.2) requires all major residential developments to achieve ‘zero carbon’ standard, with a minimum 35% carbon dioxide emissions reduction against a Building Regulations Part L (2013) baseline secured through on-site energy efficiency measures. All remaining regulated carbon dioxide emissions to 100%, are permitted to be offset through an associated cash-in-lieu contribution to the Council’s Carbon Offset Fund.
Major non-residential developments remain required to achieve a minimum 35% carbon dioxide emissions reduction against a Building Regulations Part L (2013) compliant baseline.
Price of Carbon
Contributions to the Carbon Offset Fund will be charged at £1,800 per tonne of carbon dioxide. £1,800 represents £60 per tonne calculated over 30 years (lifetimeof building). This charge is applicable to both residential and non-residential developments.
Non-Residential Sustainability Standards
All non-residential developments over 500m2 are required to achieve a BREEAM certification rating of ‘Excellent’ (minimum score 70%).
Residential change of use developments are also expected to achieve BREEAM Domestic-Refurbishment certification rating of ‘Excellent’ (minimum score 70%).
Residential Sustainability Standards
Following the removal of the Code for Sustainable Homes, residential developments are required to secure the following sustainability standards:
All new residential units must ensure a maximum internal water consumption rate of 105 litres/per person/per day (with an additional external allowance of 5 litres).
Sustainable Sourcing of Materials
All new residential units must ensure that:
At least three of the key elements of the building envelope (external walls, windows roof, upper floor slabs, internal walls, floor finishes/coverings) achieve a rating of A+ to D in the Building Research Establishment (BRE) The Green Guide of Specification.
At least 50% of timber and timber products are sourced from accredited Forest Stewardship Council (FSC) or Programme for the Endorsement of Forestry Certification (PEFC) schemes.
No construction or insulation materials are used which will release toxins into the internal and external environment, including those that deplete stratospheric ozone.
View the Mayor of London’s Housing Supplementary Planning Guidance ( PDF Help, size 2646kb) (March 2016)
View the Mayor of London’s Sustainable Design and Construction Supplementary Planning Guidance ( PDF Help, size 3430kb) (April 2014)
View the Housing Standards Review Minor Alterations to the London Plan ( PDF Help, size 108kb) (March 2016)
See external links on the right side of the page for more information
Tel: 020 8583 5555
London Borough of Hounslow