The ground
Sand and gravel · Clay-with-flints · chalk
Checkendon’s centre is mapped on chalk overlain by sand and gravel that the British Geological Survey can’t pin to an age or origin; it describes the deposit as sand and gravel with rare lenses of clay.
Within half a kilometre, Clay-with-flints caps the chalk to the north, east, west and north-west, while the chalk has no cover to the north-east, south-east and south. In one village, then, you can find free-draining gravel, heavier flinty clay and open chalk.
Planning
Chilterns National Landscape · Checkendon Conservation Area, 230 m away
Checkendon and the whole of its parish lie inside the Chilterns National Landscape. As designated land, any garden building beside the house requires a planning application, and the area covered by buildings, enclosures and pools more than 20 metres from the house can’t exceed 10 square metres without it.
The Checkendon Conservation Area lies about 230 metres from the village centre as mapped. Inside it, tree work needs six weeks’ notice to South Oxfordshire District Council (exempt: trees under 75 mm in trunk diameter at 1.5 m), and knocking down a fence, wall or gate could need permission; outside it, a two-metre fence, wall or gate (one metre by a road) normally needs no planning permission.