Southwest
Environmental LimitedSouthwest
Environmental Limited| London |
| 02076 920 670 |
| Exeter |
| 01392 927 961 |
| Manchester |
| 01612 970 026 |
| Bristol |
| 01173 270 092 |
Use the below map to find sewage treatment plant near you. The below map shows marker placed roughly to correspond with administrative areas of water companies such as South West Water, Wessex Water or Thames Water. Click on the below links, map markers to reveal a link to pages showing detailed location maps for small, and regular sized treatment works across the UK. If you would rather select a water company from a list please scroll down for a list of links.
If you are not sure who you water company is you can look them up here, or scroll down a bit to a see a map of areas.
HDD Hafren Dyfrdwy - No Data Found
NES Northumbrian Water - Larger WwTW Only
Scottish Water - Incomplete Data
Buying a House Near a Sewage Works
Effective environmental planning requires more than just public-domain maps; it requires high-resolution, "True Data" that accurately reflects the UK’s industrial and utility infrastructure. Our mapping of UK Sewage Treatment Works (STW) serves as the critical engine for our consultancy work. By identifying the exact coordinates and operational footprints of thousands of wastewater facilities, we provide developers and planning officers with an unparalleled level of site-specific accuracy.
A primary application of this dataset is in our Odour Impact Assessments. When a new residential development is proposed near a sewage works, the risk of "amenity loss" due to malodours is a major planning hurdle. Our proprietary STW maps allow us to calculate precise distance-to-receptor metrics and integrate local wind data into our modeling software. This ensures that the "Source-Pathway-Receptor" relationship is based on verified physical data, rather than generic estimates.
In regions governed by Nutrient Neutrality requirements, understanding which sewage works serves a development site is vital. Our mapping allows us to trace wastewater flows within specific catchments, such as the Solent, the River Wye, or the Somerset Levels. By knowing the permit limits and treatment capabilities of the downstream STW, we can design Nutrient Neutrality Assessment and Mitigation Strategies (NNAMS) that are technically robust and legally defensible.
Every entry in our map directory is cross-referenced against multiple data sources, including Environment Agency records, water company disclosures, and satellite imagery. This "DIY" mapping project has evolved into a professional-grade geospatial resource used by consultants and planners across the UK. It serves as tangible evidence of our firm's technical capability to manage large datasets and provide insights that go far beyond standard desktop studies.
This technical mapping capability is what allows us to successfully deliver the 900+ projects documented in our National Project Portfolio. Whether we are discharging planning conditions for a basement impact assessment in London or securing a bespoke environmental permit for a waste facility, our "True Data" maps provide the scientific foundation that makes our reports—and your planning applications—successful.