Assesses the sound from an air source heat pump at a neighbour’s window against the 37.0 dB(A) permitted-development limit. Tap any i for guidance. Method follows MCS 020 (a).
1The heat pump(s)▾
MCS 020 (a) covers one or two. More is out of scope.
2Assessment positions▾
Check every side and every floor level that faces the unit — the closest window is not always the loudest, because more distance can come with a clearer view of the unit. Assess up to four positions.
✓Result▾
📷Site photos▾
Photograph the unit location, the boundary and neighbouring windows, and any barrier or obstruction. These are assessment evidence and appear on the report. Tap a photo to add a caption or remove it.
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