Cape Town, Overberg and Wilderness cement wins for wildlife conservation

The City of Cape Town has taken a positive step toward sustainability. On 30 July 2025, it adopted the Cape Town Biodiversity Spatial Plan (CTBSP) 2025 as council policy, a framework designed to guide spatial planning, environmental assessments, and natural resource management across sectors that influence biodiversity. This move, coupled with regional efforts to protect critical ecosystems, positions the Western Cape as a notable case study in urban and rural conservation.

The CTBSP 2025 is a detailed instrument, incorporating the Biodiversity Priority Areas Map and associated land use guidelines. It identifies terrestrial and aquatic features essential for preserving native biodiversity and ecosystem functionality, categorizing areas such as Protected Areas, Critical Biodiversity Areas, and Ecological Support Areas.

The plan does not alter development rights but serves as a critical informant for decision-making, aligning municipal departments with provincial and national environmental mandates. Alderman Eddie Andrews, the City’s Deputy Mayor and Mayoral Committee Member for Spatial Planning and Environment, described it as “the least land-hungry option” to meet national biodiversity targets, a pragmatic approach for a city of 2,445 square kilometers.

Cape Town’s claim as the world’s most biodiverse city underpins the plan’s significance. Its conservation estate spans 55,697 hectares—22.72% of the municipal area—encompassing 22 nature reserves, 16 biodiversity agreement areas, and Table Mountain National Park, managed in partnership with conservation organizations and private stewards. Andrews noted that the CTBSP 2025 “positions the city as a global leader in urban biodiversity spatial planning,” a fitting accolade for a municipality pioneering such a systematic approach in South Africa.

The city’s efforts are part of a broader conservation strategy in the Western Cape. On 8 August 2025, the Wilderness Nature Reserve was declared near Heidelberg, safeguarding 643 hectares under the National Environmental Management: Protected Areas Act. Of this, 615 hectares are designated as a Priority Biodiversity Area, forming an ecological corridor to the Boosmansbos Wilderness Area within the Cape Floral Kingdom, a UNESCO World Heritage Site.

The reserve protects species such as the Breede River Redfin and the Black Harrier, while supporting the Duivenhoks Dam’s upper catchment, a key water source. Anton Bredell, the Western Cape’s Provincial Minister of Local Government, Environmental Affairs and Development Planning, called it “a win not just for biodiversity, but for the people who rely on the ecosystem services it provides.” CapeNature will oversee its management, reflecting a collaborative model with landowners.

Further afield, in the Overberg region, 270 hectares of endangered Eastern Rûens Shale Renosterveld have been secured by the Overberg Renosterveld Trust (ORT), in partnership with the UK-based World Land Trust and the Mapula Trust. This acquisition, part of the Goereesoe farm, protects a critically threatened ecosystem and a stronghold for the Black Harrier, hosting up to 20 of the fewer than 500 global breeding pairs. Dr. Odette Curtis-Scott, ORT’s CEO, emphasized its urgency: “By securing this land, we’re protecting species whose futures are on a knife’s edge.” 

The ORT’s conservation footprint now exceeds 1,300 hectares, with plans to formalize Goereesoe and adjacent sites as nature reserves. Conservation easements with farmers further connect fragmented renosterveld patches, bolstering ecological resilience. International backing via the World Land Trust’s Buy an Acre programme highlights the global stakes. The effort also supports research into Black Harrier interactions with windfarms, an emerging threat.

Cape Town’s urban planning integrates with rural preservation, balancing development with ecological imperatives. Bredell underscored the broader imperative: “Our commitment to expanding protected areas is essential.” As environmental degradation accelerates globally, the Western Cape’s blend of policy, partnership, and pragmatism offers a blueprint for others to emulate, if resources and resolve permit.

These initiatives form a cohesive response to biodiversity loss and encroaching urbanisation, but the real test will be how they respond to urban expansion and land invasions, which the DA has endorsed and incentivised since 2006 with free title deeds and utilities for land invaders.