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Search any UK location to check nearby sewage, wastewater and drinking water treatment works before you buy, plan or develop.
Updated: periodically as source data is republished · Last checked by Maplify: July 2026
This layer maps sewage and wastewater treatment works and drinking water treatment works across England, shown as points sourced from Environment Agency and water company published datasets.
It gives an early view of treatment infrastructure near a site, relevant to both environmental screening and amenity considerations for nearby development.
Nearby treatment works can carry odour, noise or environmental implications that planning officers and environmental health teams take seriously for residential and sensitive-use proposals. Developers and environmental consultants check this layer early to flag any nearby infrastructure that could affect amenity.
Sewage/Wastewater Treatment Works
Wastewater treatment plant locations.
Drinking Water Treatment Works
Potable water treatment plant locations.
Proposals near a sewage treatment works may need an odour or amenity assessment, and environmental health input is commonly sought for residential schemes in close proximity. This layer shows facility locations only — confirm current operational details directly with the relevant water company.
Check for nearby treatment works that could raise odour or amenity considerations.
Commission an odour or environmental assessment where a residential scheme sits close to treatment infrastructure.
Check the wider Water Industry & Utilities layer for the same site for the fuller picture.
This is general guidance, not professional or legal advice — confirm specifics with the relevant authority or a qualified professional.
Property Developers
Screen sites for nearby treatment works and amenity implications.
Environmental Consultants
Scope odour and environmental assessments.
Planning Consultants
Advise on likely conditions relating to environmental protection.
Treatment works checks are commonly run alongside these related layers.
What does the Treatment Works layer show?
Sewage and wastewater treatment works, and drinking water treatment works, sourced from Environment Agency and water company published datasets.
Why do developers check nearby treatment works?
Treatment works can carry odour, noise or amenity implications for nearby development, and environmental health input is commonly sought for residential proposals in close proximity.
Does proximity to a treatment works affect planning permission?
It can. Odour and amenity impacts from nearby treatment works are a material consideration, and an odour assessment may be required for sensitive uses nearby.
How often is treatment works data updated?
Data is sourced from Environment Agency and water company published datasets and is checked periodically as new extracts are published.
Open the map, generate a site report or save your search to come back to it later.
| Provider | Environment Agency / Water Companies |
| Geometry type | Point |
| Coverage | England |
| Update schedule | Periodic check against published extracts |
| Reference date | July 2026 |
| Licence | Open Government Licence v3.0 |
