Policy information sourced from Enfield Development Managament Document (DMD)

DMD 56 Heating and Cooling

All new developments (excluding householder applications) will be required to demonstrate how the scheme has been designed to control and manage heat gain and reduce the reliance on mechanical cooling, subject to technical and economic feasibility and other relevant planning considerations.

Development proposals should reduce their reliance on mechanical cooling systems in accordance with the following hierarchy:

  • The proposal has utilised passive design measures to minimise unwanted heat gain and manage incidental gains to reduce overheating in the summer and reduce the need for heating in the winter, through orientation, daylighting, green roofs, air tightness, overshading, materials specification, managed thermal mass, construction and end-user operation;
  • Passive or natural ventilation techniques have been employed to manage cooling, moisture and air change requirements;
  • Where mechanical ventilation/cooling systems are required, development should be designed to include mixed mode ventilation and cooling in the first instance utilising low energy plant and heat recovery systems where appropriate;
  • Where mixed mode ventilation/cooling is not appropriate and the development requires full mechanical ventilation/cooling. The installed plant shall be (in order of preference) low energy or air conditioning. Heat recovery systems should be used where appropriate.

Measures to manage the heating and cooling demands of development must adhere strictly to the principles of the cooling hierarchy with each tier utilised fully before a lower tier is employed. Where mechanical ventilation/cooling plant is present in a scheme, evidence must be provided to demonstrate that the heating and cooling demands of the development cannot be met by alternative means.

Opportunities to adapt to existing buildings, places and spaces to manage heating and cooling demands must be maximised where practicable.

This Policy should be read in conjunction with Core Strategy Policy 20.

For more information please see the Development Managament Document (DMD)