This article describes red squares and how they are used within Unity Search (Spider)
Every Regulated search shows a red square on the plans.
This is present on both the surface and sewer plans of the Regulated Drainage and Water report and the plan that is provided for the Regulated Local Authority search.
This red square is a central marker, highlighting the central point of the polygon used for the order in question and, because of this, the red square will always be in the centre of the page.
This is the only meaning of the red square and it does not indicate a drainage element to the property itself - as such, it is not included in the key of the reports and should not be mistaken as anything other than a marker for the polygon itself.