Air Source Heat Pumps – Update to Permitted Development Rights

Arm Environment Building Acoustics

Air Source Heat Pumps – Update to Permitted Development Rights Updated permitted development rights for the installation of air source heat pumps (ASHPs) came into force to 29th May 2025. The legislative changes make it substantially easier for homeowners and landlords to install ASHPs without the need for planning permission. The main changes include: Allowing […]

Noise from Heat Pumps – IoA and CIEH Publish Briefing Notes

Arm Environment Building Acoustics

The Institute of Acoustics (IOA) and Chartered Institute of Environmental Health (CIEH) and have launched two new briefing notes on mitigating the potential noise impacts of heat pumps. Air source heat pumps and ground source heat pumps generate noise and can potentially cause significant adverse effects on people living nearby. With heat pumps being part […]

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