SuDS Tree Pit
A "blue-green" street tree planted in an engineered structural-soil or root-cell pit that receives, stores and treats road and roof runoff. Delivers a healthy canopy and bioretention together in hard urban settings where soft SuDS won’t fit.
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
Sequestered — carbon removed from the atmosphere
from the tree component at maturity; varies by species and size
Source: i-Tree Eco
Indicative and highly variable by species, size, soil and context. Sequestration is slow and reversible — it is not equivalent to avoiding an emission and must not offset embodied product carbon.
Biodiversity Net Gain
engineered urban feature; value is the tree and SuDS function
Source: Defra Biodiversity Metric 4.0
England requires a 10% Biodiversity Net Gain; distinctiveness is one input to the habitat unit calculation.
Water / SuDS
bioretention — receives, stores and treats road/roof runoff around the tree
Source: CIRIA SuDS Manual (C753)
Ecosystem Services
Establishment & Maintenance
the structural soil / root-cell system and pit construction carry real embodied carbon — offset over time by the tree and avoided drainage
Read This Honestly
- •Sequestration is slow, uncertain and reversible — it un-banks if the plant dies.
- •Never offset embodied product carbon with it.
- •Sequestration is the tree only; the engineered pit is an embodied cost.
Reference Sources
Products in this category
No manufacturer products are listed in this category yet. You can specify suds tree pit generically and carry it through to a render and specification as normal.
Specification
- Finish
- Stormwater tree in structural soil
- Service life
- 60 years