On most Cornish housing developments the slate-versus-tile question shows up in the planning conversation, not the cost plan. Get the call right and you protect both your build cost and your sale price.
Where slate is the right call
Sensitive conservation areas, Duchy of Cornwall and AONB sites, premium plots, and any scheme where the planning brief explicitly references natural materials. Brazilian Grey Green, Spanish Del Carmen and Welsh slate all sit in this band — with Burlington reserved for the most prestigious work.
Where concrete tile is the smart call
Volume housing on standard plots where the planning consent permits it. Redland Mini-stonewolds and Marley Edgemere give you predictable pricing, fast install pace and a roofline that holds up against natural materials at a fraction of the per-m² cost.
Hybrid is often the answer
On mixed schemes we routinely deliver slate on the prominent elevations and tile on the rear or service blocks — under one roofing package, with one set of leadworks, one programme and one warranty chain.