Block selection
Premium colours, textured finishes or multi-size packs can add £20–£55/m² over standard grey rectangular paving.
Laying pattern
Herringbone, basketweave or mixed-size layouts typically increase the installed rate by £7–£15/m² through slower setting-out and laying.
Cutting intensity
Curves, narrow margins, chambers and frequent penetrations can add £8–£25/m² in labour, plant time and block waste.
Area and phasing
Small or fragmented work areas can increase rates by 15–35% because gang output falls and mobilisation is spread over fewer metres.
Ground construction
Where sub-base, excavation and disposal are required, allow a further £35–£80/m² depending on depth, access and ground conditions.
Edge restraint
New kerbs, channels or concrete-backed edgings commonly add £18–£45 per linear metre and are not absorbed efficiently into small paving areas.