Knockhall Chase
IndustrialHouseholdCommercialInert
Knockhall Chase is a historic (closed) landfill site recorded by the Environment Agency near Swanscombe, Kent. It received industrial, household, commercial and inert waste between 1977 and 1990, covering about 8.29 hectares. Reference EAHLD19283, October 2025 data revision.
Full record
| EA reference | EAHLD19283 |
|---|---|
| Site name | Knockhall Chase |
| Address | Swale, Kent |
| Site operator | Biffa Limited |
| Licence holder | Biffa Limited |
| Licence issued | 19 April 1977 |
| Licence surrendered | 30 March 1994 |
| First waste input | 31 December 1977 |
| Last waste input | 31 December 1990 |
| Area | 8.29 ha |
| Gas control | Yes |
| Leachate containment | Not recorded |
| Licensed site | Yes |
| EA area | Kent SO |
| Grid reference | 558800, 174600 |
Source: Environment Agency Historic Landfill Sites dataset, October 2025 revision.
Boundary map
What these waste types mean
- Industrial:
- factory and process waste. Contents vary widely — some benign, some not; the site's operator and era are the clues.
- Household:
- everyday domestic refuse. Decomposes and can generate landfill gas for a few decades after closure.
- Commercial:
- waste from shops and offices — paper, packaging, food. Similar profile to household waste, usually less of it.
- Inert:
- builder's rubble, subsoil, concrete, brick. Doesn't decompose or generate gas; the lowest-concern category.
Other historic landfill sites nearby
- Church Path PitIndustrialInert
- Craylands LaneHouseholdCommercialInert
- Swanscombe CementInert
- Stone 9a 1976HouseholdCommercialInert
- Stone MarshesIndustrialHouseholdCommercialInert
- Alkerden LaneInert
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.