
BMW Hams Hall Engineering Plant - Warwickshire, UK
GRAF Group Reference: EcoBloc Maxx and Flex stormwater attenuation supporting expansion at BMW's Hams Hall engine plant, with footprint cut by nearly 75 m² versus the initial one-metre-depth concept.
BMW Hams Hall / Glencar · Hams Hall, Warwickshire, United Kingdom
GRAF Group Reference. International project reference from GRAF Group. Not an Australian installation. View original source.
Catalogue product and system imagery only. Not project site photos from this location.
~75 m²
Footprint saved
1.09 m
Tank depth
5 loads
Delivery lorries
Project data
- Location
- Hams Hall, Warwickshire, United Kingdom
- Region
- Europe
- Sector
- Industrial
- Solution
- Stormwater detention/retention
- Product
- EcoBloc Maxx & EcoBloc Flex
- Source
- GRAF Group Reference
- Purpose
- Plant expansion stormwater attenuation
- Depth
- 1.09 m tank (vs 1 m initial spec)
- Footprint
- Reduced by nearly 75 m²
- Logistics
- Five lorry loads (about 3× fewer than single-piece crates)
Challenge
BMW's Hams Hall plant machines and builds engines for BMW and MINI. Site expansion needed a future-proof attenuation solution that limited excavation and spoil while fitting a complex manufacturing campus.
Solution
After a prior successful job, GRAF UK designed, supplied and installed EcoBloc Maxx and EcoBloc Flex attenuation. Calculations allowed a 1.09 m tank depth (slightly deeper than a one-metre brief), cutting footprint by nearly 75 m² and reducing excavation, spoil, backfill and gravel. Stackable crates arrived in five lorry loads.
Outcomes
- Nearly 75 m² smaller footprint versus initial depth concept
- Five-lorry modular delivery versus bulkier single-piece crates
- Operational attenuation supporting plant expansion
How the system works
Manufacturer system diagram showing how this product family works. Not a site drawing for this project.

Related product photography
Catalogue product and system imagery only. Not project site photos from this location.



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BMW Hams Hall Engineering Plant - Warwickshire, UK