Party Wall may be used in 4 different legal senses
Click for Bruce's Party Wall Cyclopedia

Cills survey

Cills are installed plumb and level.  Movement out of this range is indicative of structural movement which needs to be considered and if necessary addressed.   They are stone, UVPC, Timber, tiled etc.

The purpose of the cills is to shed water away from the dwelling

Party Wall Surveyor serving Thanet and London

Third Surveyor serving England and Wales

Image of Bruce Spenser MSc MCIOB
Bruce Spenser MSc MCIOB