Attenuation Basin / Wetland
A wet SuDS feature — attenuation basin, pond or constructed wetland with marginal and aquatic planting. Stores and treats surface water while creating high-value wetland habitat. Strong on both flood resilience and biodiversity.
Carbon and evidence
Carbon Sink & Ecosystem Services
A living landscape element — a carbon sink and provider of ecosystem services, not a manufactured product. Its value is measured by sequestration and biodiversity, not embodied carbon, and it must never be netted against a product’s A1–A3.
Carbon Sequestration
Not sequestration-led
The primary value here is biodiversity and/or water function, not carbon storage.
Biodiversity Net Gain
ponds / reedbed / fen are high- to very-high-distinctiveness habitats
Source: Defra Biodiversity Metric 4.0
England requires a 10% Biodiversity Net Gain; distinctiveness is one input to the habitat unit calculation.
Water / SuDS
high — attenuates storm flows and treats pollutants; supports biodiversity
Source: CIRIA SuDS Manual (C753)
Ecosystem Services
Establishment & Maintenance
excavation, any liner, and inlet/outlet structures carry an upfront construction carbon cost
Read This Honestly
- •Water levels and maintenance regime drive the ecological outcome.
Products in this category
No manufacturer products are listed in this category yet. You can specify attenuation basin / wetland generically and carry it through to a render and specification as normal.
Specification
- Finish
- Wet SuDS feature
- Service life
- 60 years