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Energy efficiency, retrofitting, and sustainable construction supplementary planning document

Summary table: Retrofitting measures and their impact

Contents

Cost

Measure Cost
Reinstate missing shutters Low to medium
Timber floor draughtproofing Low
Timber door draughtproofing Low
Timber floor insulation Low to medium
Chimney register plate Low
Chimney draughtproofing balloon Low
Metal framed window draughtproofing Low
Timber casement window draughtproofing Low
Timber sash window draughtproofing Low
Secondary glazing Medium
Slim profile double glazing Medium to high
Double and triple glazing Medium to high
Cavity wall insulation Low
Internally applied solid wall insulation High
Externally applied solid wall insulation High
Insulating solid floors Medium
Roof insulation at ceiling level Low
Roof insulation at rafter level Low
Solar photovoltaics and solar thermal Medium
Ground source heat pump Medium to high
Mechanical ventilation and heat recovery Medium
Boiler and heating controls Medium
Air source heat pump High
Rainwater harvesting Medium
Greywater recycling Medium

Impact

Measure Environmental impact
Reinstate missing shutters Low to medium
Timber floor draughtproofing Low
Timber door draughtproofing Low
Timber floor insulation Medium
Chimney register plate Low
Chimney draughtproofing balloon Low
Metal framed window draughtproofing Low
Timber casement window draughtproofing Low
Timber sash window draughtproofing Low
Secondary glazing Medium
Slim profile double glazing Medium
Double and triple glazing High
Cavity wall insulation High
Internally applied solid wall insulation High
Externally applied solid wall insulation High
Insulating solid floors Medium
Roof insulation at ceiling level High
Roof insulation at rafter level High
Solar photovoltaics and solar thermal Medium to high for PV, Low for thermal
Ground source heat pump Low to high, depending on fuel source
Mechanical ventilation and heat recovery Low to medium
Boiler and heating controls High
Air source heat pump Low to high, depending on fuel source
Rainwater harvesting Medium
Greywater recycling Medium

Consents

Measure Consents required
Reinstate missing shutters Listed Building Consent
Timber floor draughtproofing Listed Building Consent (not normally)
Timber door draughtproofing Listed Building Consent (not normally)
Timber floor insulation Listed Building Consent, Building Control
Chimney register plate Not applicable
Chimney draughtproofing balloon Listed Building Consent (not normally)
Metal framed window draughtproofing Building Control
Timber casement window draughtproofing Listed Building Consent (depending on the system used), Building Control
Timber sash window draughtproofing Listed Building Consent (not normally), Building Control
Secondary glazing Listed Building Consent, Building Control
Slim profile double glazing Listed Building Consent, Building Control, Permitted Development, Planning Permission
Double and triple glazing Listed Building Consent, Building Control, Permitted Development, Planning Permission
Cavity wall insulation Listed Building Consent, Building Control
Internally applied solid wall insulation Listed Building Consent, Building Control
Externally applied solid wall insulation Listed Building Consent, Building Control, Permitted Development, Planning Permission
Insulating solid floors Listed Building Consent
Roof insulation at ceiling level Listed Building Consent, Building Control
Roof insulation at rafter level Listed Building Consent, Building Control, Permitted Development, Planning Permission
Solar photovoltaics and solar thermal Listed Building Consent, Building Control, Permitted Development, Planning Permission
Ground source heat pump Listed Building Consent, Building Control, Permitted Development
Mechanical ventilation and heat recovery Listed Building Consent, Building Control, Permitted Development, Planning Permission (for flues or ventilation)
Boiler and heating controls Listed Building Consent, Building Control, Permitted Development, Planning Permission (for flues or ventilation)
Air source heat pump Listed Building Consent
Rainwater harvesting Listed Building Consent, Building Control, Permitted Development, Planning Permission
Greywater recycling Listed Building Consent, Building Control

Scalability

Measure Scalability
Reinstate missing shutters Not suitable for scaling
Timber floor draughtproofing Not suitable for scaling
Timber door draughtproofing Not suitable for scaling
Timber floor insulation Not suitable for scaling
Chimney register plate Not suitable for scaling
Chimney draughtproofing balloon Not suitable for scaling
Metal framed window draughtproofing Not suitable for scaling
Timber casement window draughtproofing Not suitable for scaling
Timber sash window draughtproofing Not suitable for scaling
Secondary glazing Not suitable for scaling
Slim profile double glazing Not suitable for scaling
Double and triple glazing Not suitable for scaling
Cavity wall insulation Not suitable for scaling
Internally applied solid wall insulation Not suitable for scaling
Externally applied solid wall insulation High
Insulating solid floors Not suitable for scaling
Roof insulation at ceiling level Not suitable for scaling
Roof insulation at rafter level Not suitable for scaling
Solar photovoltaics and solar thermal High
Ground source heat pump High
Mechanical ventilation and heat recovery Not suitable for scaling
Boiler and heating controls Not suitable for scaling
Air source heat pump Not suitable for scaling
Rainwater harvesting Not suitable for scaling
Greywater recycling Not suitable for scaling