Find Gaps and Overlaps Between Plots

Areas that overlap each other, gaps enclosed inside the merged layer, boundaries that stop just short of touching, and features whose geometry is identical to another. Every one is listed with a measurement and can be clicked to zoom straight to it.

A gap fully surrounded by plots shows up as a hole once the layer is merged. A gap open at both ends does not, because it is not enclosed by anything — so those are found separately by measuring how close two boundaries come without meeting.

It would. Nothing in the file records whether a hole was intended, so both are listed with their area and the judgement is left to you. A deliberate exclusion is usually obvious by its size.

An overlap covering less than about two per cent of the smaller area. That is almost always a digitising error rather than a real shared claim, so those are flagged separately.

A bounding-box filter runs first, so only genuinely nearby pairs are compared. A few thousand plots is comfortable; the number of pairs actually compared is shown with the results.

No. The whole check runs in your browser, which matters when the file is a village record.