Seven Hills Environmental Planting Project

Seven Hills Environmental Planting Project is an environmental planting initiative located near Mumbil, approximately 25 kilometers southeast of Wellington in the Central West region of New South Wales. Registered in March 2024, the project covers roughly 59 hectares of land historically used for agriculture. The project is managed by Carbon Fix Pty Limited, a proponent that focuses on helping landholders along the east coast of Australia integrate carbon farming into their operations.

Environmental planting projects under the Carbon Farming Initiative involve establishing permanent forests of native tree species on land that has been clear of forest cover for at least five years. These projects are required to maintain a stocking density sufficient to achieve forest cover, typically at least 200 stems per hectare, and generally exclude livestock to ensure the survival of the saplings. The methodology uses the Full Carbon Accounting Model (FullCAM) to model carbon sequestration based on the specific mix of species planted and local climate data.

The region surrounding Mumbil and Wellington is characterized by undulating slopes and is predominantly utilized for grazing beef cattle and sheep, with some cropping in flatter areas. The environment is classified as having a temperate climate with moderate rainfall, typically averaging between 600mm and 650mm annually. The soils in this part of the Central West Slopes are often red-brown earths or texture-contrast soils (Kurosols) consisting of loams overlying clay subsoils, which support mixed box-gum woodlands native to the area.

Notably, the project has undergone significant administrative updates since its inception. In May 2025, the project varied its methodology from the 2014 determination to the newer Reforestation by Environmental or Mallee Plantings-FullCAM 2024 method, ensuring it aligns with the latest regulatory standards and carbon modeling updates. Shortly after, in July 2025, the project area was expanded to include additional land, suggesting a phased approach to the planting activities.