Vogelzang

Vogelzang is a protected natural area stretching along the Vogelzangbeek stream, right on the border between the municipality of Sint-Pieters-Leeuw and the Anderlecht district of the Brussels-Capital Region. It forms part of the wider Zenne valley, where wetlands and damp meadows have survived despite heavy urban pressure from both sides of the regional boundary.

What is the Vogelzangbeek?

The Vogelzangbeek is a small watercourse that marks the natural boundary between Sint-Pieters-Leeuw and Brussels. Its waters flow into the Zuunbeek and ultimately reach the Zenne river basin. For decades the stream was largely hidden within the built-up landscape — hemmed in by housing, roads and infrastructure, its natural character barely visible to residents and passers-by.

Why is the area protected?

The preservation and development of nature in the Vogelzangbeek valley is overseen by a commission covering three neighboring localities: Anderlecht, Sint-Pieters-Leeuw and Vlezenbeek. This cooperation is coordinated in part by the association CCN Vogelzang CBN, which has for years faced growing development pressure on both sides of the regional border. The area is regarded as one of the more valuable natural zones in this part of the Brussels agglomeration, rich in the flora and fauna typical of wetland habitats.

What is happening in the area today?

In recent years, efforts have focused on restoring a more natural character to the stream. A project known as "oxygen for the Vogelzangbeek" involves unsealing paved sections of the valley, so the reclaimed space can be turned into green area with attention to water management, biodiversity, landscape value and recreational use for local residents. Local conservation groups, including Natuurpunt Leeuwse Natuurvrienden, have actively opposed construction plans in the immediate vicinity of the valley, arguing for the need to preserve this ecological corridor between the two regions.

Can you walk through it?

Yes — the Vogelzangbeek valley forms part of a wider network of walking routes linking four valleys on the outskirts of Anderlecht and Sint-Pieters-Leeuw. The routes follow the stream and let visitors see how a modest watercourse crosses the boundary between two administrative regions, creating a green corridor within a densely built-up capital area.

Frequently asked questions

Where exactly is Vogelzang located? On the border between the municipality of Sint-Pieters-Leeuw and the Anderlecht district of the Brussels-Capital Region, along the Vogelzangbeek stream.

What makes this place special? A surviving stretch of wetland and natural vegetation within a heavily urbanized surrounding area, jointly protected by three neighboring municipalities.

Is the area under threat? Yes — conservation groups have for years flagged development pressure in the immediate vicinity of the valley, opposing further construction projects there.

Are there active conservation works? Yes, a project is underway to unseal paved sections of land along the stream, aimed at improving water management and biodiversity.