Landfill Check

Twickenham Trading Estate

Inert

Twickenham Trading Estate is a historic (closed) landfill site recorded by the Environment Agency near Sunbury-on-Thames, Surrey. It received inert waste between 1946 and 1963, covering about 6.78 hectares. Reference EAHLD11226, October 2025 data revision.

Full record

EA referenceEAHLD11226
Site nameTwickenham Trading Estate
AddressSt. Maragrets, Isleworth, Hounslow, London
Site operatorWillments Limited
Licence holderNot recorded
Licence issuedNot recorded
Licence surrenderedNot recorded
First waste input31 December 1946
Last waste input31 December 1963
Area6.78 ha
Gas controlYes
Leachate containmentNot recorded
Licensed siteNot recorded
EA areaNorth East TH
Grid reference515700, 174300

Source: Environment Agency Historic Landfill Sites dataset, October 2025 revision.

Boundary map

What these waste types mean

Inert:
builder's rubble, subsoil, concrete, brick. Doesn't decompose or generate gas; the lowest-concern category.

Other historic landfill sites nearby

What this data does — and doesn't — cover

  • Licensed-era records only. Waste licensing began in 1974. Older tips — especially small pre-war ones — are incompletely recorded, so absence from this data does not mean no landfill ever existed here.
  • Not the contaminated-land register. Councils hold a separate register of land determined as contaminated. A historic landfill entry is not a contamination determination, and vice versa.
  • Boundaries are indicative. Digitised at 1:10,000 scale; some are buffers around a point rather than surveyed edges.
  • Not a substitute for a formal environmental search. If you're buying, your conveyancer's environmental search checks this and several other sources.

EA Historic Landfill dataset, October 2025 revision. More on the methodology page.