Burnham Beeches runs right up to the western edge of Farnham Common — more than 900 acres of protected ancient woodland, its heart owned by the City of London since 1880 and about as protected as English woodland gets. If your house sits off Templewood Lane or Egypt Lane, that woodland is effectively your back fence, and it shapes what you can dig, where machines can sit and how much care the trees demand.
The village itself reads simply: shops along The Broadway on the A355, lanes running off either side, and housing that goes from older cottages near the common to large detached houses on generous plots. With most of the surrounding land in the Green Belt, extending down or out is usually how houses here grow.
The ground under Farnham Common
Chalk is down there, but you rarely dig into it. The village stands on a plateau of Thames gravels laid over the sands and clays of the Reading Beds, and that layering decides how a job behaves. Gravel digs clean and drains fast; the clay beneath holds water and moves with the seasons. Two trial pits fifty yards apart can tell different stories — one draining freely, one sitting wet on a clay lens. So soakaway design here starts with a percolation test rather than an assumption, and foundation depths near mature trees get set with shrinkable clay in mind.
Hedgerley is the proof of what’s underfoot. The village fired bricks from its own clay for centuries — “Hedgerley loam” was prized well beyond the county, and the last of the old brickfields only closed in the 1930s. Ground good enough to dig for brick is ground you plan around, not through.
THE GROUND HERE
- Thames gravel capping the sands and clays of the Reading Beds, with chalk at depth
- Free-draining on the plateau; wet and shrinkable where the clay comes up
- Trial pits and percolation tests before any soakaway or foundation design is fixed
Working in the village — and in Hedgerley
Hedgerley sits in a Chiltern bottom a mile or so east — one narrow lane of red-brick and timber-framed cottages around the pond and the White Horse, the whole village a designated conservation area. Its old parish once reached down to One Pin Lane, which tells you how tied together these two places have always been. Village Lane wasn’t made for wagons, so machine sizes, delivery slots and muck-away runs get planned around the lane rather than the other way about.
Closer to the Beeches, the trees set the rules. Anything near protected trees, inside the conservation area or in the Green Belt deserves a conversation with the local planning authority before a bucket goes in — we plan on that assumption from the first site visit.
WORTH KNOWING
- Hedgerley Village Conservation Area has its own appraisal with Buckinghamshire Council — worth checking before external works
- Burnham Beeches is a national nature reserve and Site of Special Scientific Interest; trees near its boundary often carry protection, which changes where machines sit and where spoil goes
If there’s a dig coming in Farnham Common or Hedgerley — foundations, drainage, a driveway, a basement — the ground above is where the planning starts. There’s more on clay and soakaways in our drainage guide, and a quote costs nothing.
Planning something in Farnham Common and Hedgerley?
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