Policy information sourced from the Islington Development Management Policies
DM7.5 Heating and cooling
Developments (excluding householder extensions) are required to demonstrate how the proposed design has maximised incorporation of passive design measures to control heat gain and to deliver passive cooling, following the sequential cooling hierarchy, below:
- (Highest priority) Passive design to minimise unwanted heat gain and manage heat (e.g. orientation, shading, fenestration, soft landscaping, thermal mass, energy efficient lighting and appliances)
- Passive/natural cooling (e.g. cross ventilation, passive stack ventilation, night purging)
- Mixed-mode cooling, with local mechanical ventilation / cooling provided where required to supplement the above measures using (in order of preference) low energy mechanical cooling followed by air conditioning
- Full-building mechanical ventilation / cooling systems using (in order of preference) low energy mechanical cooling followed by air conditioning
Measures at the highest priority level of the above cooling hierarchy shall be utilised to the fullest extent possible before the next level of the hierarchy is utilised. Use of technologies from lower levels of the hierarchy shall not be supported unless evidence is provided to demonstrate that technologies from higher levels of the hierarchy cannot deliver sufficient heat control.
Applications for major developments are required to include details of internal temperature modelling under projected increased future summer temperatures to demonstrate that the risk of overheating has been addressed.
For more information please see the Islington Development Management Policies