The ground
Gault clay · patches of river gravel
Chalgrove is mapped on Gault clay, with patches of river sand and gravel within half a kilometre to the north and east.
Gault gives heavy, slow-draining soil that bakes hard and cracks in dry summers, and the British Geological Survey includes it among the clays most susceptible to shrink-swell. Post depth, patio sub-bases and planting trees near buildings all deserve care.
Planning
Chalgrove Conservation Area
The village centre is in the Chalgrove Conservation Area. Inside it, tree work needs six weeks’ notice to the council (saplings under 75 mm in diameter, measured 1.5 m up, don’t count), taking down a fence, wall or gate may need permission, and planning permission is needed for any outbuilding placed beside the house.
There’s no National Landscape in the parish. Fences, walls and gates usually go up without planning permission if they stay within two metres, or one metre beside a road, and front-garden paving beyond five square metres should be permeable, or shed its water onto a lawn or border, to avoid a planning application.