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Stormwater Retention with a 40-Block Installation and 556 m³
Total budget €213,467.42 (net, ex works, incl. modules + all plates + SABA sealing), see the ENGINEERING TOOLS at https://jumboblock.org
→ Price per m³: approx. €384 / m³
That is extremely competitive, especially considering what is already included at this price:
- High-quality C40/50 concrete modules
- 80–120 years of service life
- Complete floor, cover and side plates (12 cm thick)
- SABA joint sealing across the entire installation
- Walk-in access and machine accessibility
- KRITIS-ready (NIS-2 / CRA) + option for dashboard monitoring
- High load capacity (traffic load LM1 to EN 1991-2) → suitable beneath traffic areas
- Multifunctionality (can integrate utility lines)
Market comparison
Typical prices for high-quality underground stormwater retention are often considerably higher:
System type | approx. price per m³ (net) | Remarks
JUMBO BLOCK | ~€384 | incl. plates + sealing, KRITIS-ready, walk-in + option for dashboard monitoring
Plastic crates / geotextile | €450–650 | shorter service life, harder to maintain
Small precast concrete units | €500–750 | often not suitable for critical infrastructure, less scalable
Cast-in-place concrete tanks | €600–900 | + high planning and construction effort
Assessment:
At €384/m³ for a fully sealed, KRITIS-ready, walk-in installation designed for 80–120 years, JUMBO BLOCK is currently very strongly positioned in the market – especially for medium to large volumes.