Editorial review
Reviewed by the Maplify Editorial Team. Editorial policy
OpenStreetMap contributors via Overpass
Mapped Water & Sewer Pipe Networks
View limited OpenStreetMap water-pipe, sewer-pipe and pumping-station features; learn what these features cannot establish.
View limited OpenStreetMap water-pipe, sewer-pipe and pumping-station features; learn what these features cannot establish.
How to Interpret the Map — Layer Key
Mapped water pipe (OSM)
Publicly mapped pipe linework. Very incomplete, not a statutory underground mains plan.
Line symbolMapped sewer pipe (OSM)
Publicly mapped sewer linework; a missing line does not mean the network is absent.
Line symbolMapped pumping station (OSM)
Indicative community-mapped pumping station location.
Point markerWhat This Layer Shows
The water-pipe overlay selects OpenStreetMap pipelines tagged as carrying water or as water mains. The sewer overlay selects pipelines tagged as sewage or sewer. The pumping-station overlay uses public man_made=pumping_station features.
These are community-maintained mapped objects rather than a national register of underground services. Most buried mains, lateral drains, connections, valves and manholes will not be visible.
Why It Matters for Your Site or Property
Understanding possible utility corridors is useful for early feasibility and designing a responsible programme of official service searches.
Even a seemingly precise map line cannot be relied on to avoid a service strike or establish an available connection.
Planning and Property Impact
Before any excavation, request up-to-date water and sewer plans from the relevant operators and follow current safe-digging procedures, surveys and permit arrangements.
A planning application may require a formal drainage strategy and undertaker connection capacity assessment.
How to Interpret This Layer
- 1Open Map layers > Water Industry > Pipe Networks.
- 2Enable Mapped Water Pipes (OSM), Mapped Sewer Pipes (OSM) and/or Mapped Pumping Stations (OSM).
- 3Treat results as broad contextual hints; request official utility plans before designing or digging.
Official Data Source
Publisher
OpenStreetMap contributors via Overpass
Coverage
UK where publicly mapped; patchy, especially for underground assets
Licence
Open Database Licence (ODbL) 1.0, attribution required
Official source
https://www.openstreetmap.org/copyright
Data Freshness
Planned refresh frequency
Queried from Overpass when the map moves; source completeness and replication delays vary
Important Limitations
- Coverage is very incomplete. A missing line does NOT mean no water or sewer pipe exists.
- Line positions, depths, material, diameter, pressure, capacity, legal easements and operational status are unverified.
- This overlay is not a utility-search, excavation-safety, statutory records or connection-design product.
Common Use Cases
Site researchers
Flag publicly mapped infrastructure to supplement formal utility searches.
Engineers
Identify areas where operator records should be commissioned before design.
Related Layers
This layer is commonly checked alongside these related layers.
Frequently Asked Questions
Can I use these lines to dig safely?
No. Obtain current underground service plans, follow HSG47 and use a competent survey and safe-digging process.
Does the map have every Thames Water or United Utilities main?
No. Utility companies do not generally release complete buried water and sewer networks as unrestricted national open data.
Check Mapped Water & Sewer Pipe Networks on Maplify
Open the map, generate a site report or save your search to come back to it later.
References and Methodology
Professional disclaimer
Maplify is a screening and due-diligence tool. This layer does not constitute professional advice, a planning decision, or a legal determination of any kind. Always verify critical matters with the relevant local planning authority, the data provider, or a qualified professional before relying on this information for a transaction, planning application, or development decision.