Green belt · compliance to execution
We tell you what you owe, then we plant it and prove it.
Consultants write the green belt chapter of your clearance and leave. Landscapers plant without reading it. We do the part in between — and stay through the aftercare years, when survival is what actually gets audited.
What the current memorandum requires
Superseding the memorandum of 27 October 2020
| Category | Predominantly air-polluting | Other sectors |
|---|---|---|
| Red | 25%PIA ≥80 | 20% |
| Orange | 20%PIA ≥55 | 15% |
| Green | 10%PIA ≥25 | Optional |
| White | Optional | Optional |
Units inside an industrial estate owe 15% (Red) or 10% (Orange), and the estate itself must develop 10% as common green area at 2,500 trees per hectare. Red and Orange units in Critically Polluted Areas (CPA) and Severely Polluted Areas (SPA) owe 40%. Read the memorandum in full.
One caveat that decides most projects. This table is what the appraisal committees are pointed at. Your binding number is what your clearance conditions actually say — and your state board’s consent may still specify the old 33%. Check your state.
Stage one
Establish the obligation
The 2025 memorandum, your consent conditions and any polluted-area override rarely agree. We reconcile them and put the defensible number in writing.
Stage two
Design and plant
Multi-tier belts aligned perpendicular to the prevailing wind, species matched to your zone and pollutant load — chosen for penetrability, not as a solid wall.
Stage three
Maintain and evidence
Geo-tagged records, survival counts and the half-yearly submission your board and the regional office expect, through the full aftercare period.
Not sure whether 33% or 25% applies to you?
Send us your consent letter and clearance conditions. We will tell you which number your board will hold you to, and what it costs to close the gap.