# Ecology 3.1c Tree canopy - Space for root growth
# Applies to
All subdivisions
# Objective
To incorporate natural and cultural features in the design of streets and public open space where appropriate.
To protect and enhance native habitat and discourage the planting and spread of noxious weeds.
# Summary
Excellence is awarded where innovative approaches to supporting tree root growth in urban areas are used—such as soil vaults or structural soil systems that enable roots to grow in uncompacted soil.
While such approaches may extend beyond current guidance in the Infrastructure Design Manual (IDM), Engineering Design and Construction Manuals (EDCM), and Australian Standards, designs must still demonstrate alignment with key requirements, including a minimum tree zone of 5.0m diameter x 0.6m deep (IDM), and consider AS4970-2009 (Protection of trees on development sites) and AS4419-2018 (Soils for Landscaping and Garden Use).
# Documentation & evidence required
- Landscape Masterplan: Advanced trees marked on plans. Annotation / legend to plans - 'Advanced trees (minimum 2.5m). Advanced trees to be planted at least 6 months prior to the sale of lots.'
# Further Information
- AS4970-2009 - Protection of trees on development sites
- AS4419-2018 - Soils for landscaping and garden use