Southampton LPA BNG

Southampton, a major port city on the south coast of England, is a unitary authority combining dense urban areas with significant coastal and estuarine habitats. Covering approximately 72 square kilometres, the city includes residential districts, commercial zones, and large areas of natural and semi-natural habitats along the Solent coastline.

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In accordance with the Environment Act 2021, Southampton City Council requires most new developments to achieve a minimum of 10% Biodiversity Net Gain (BNG). This can be delivered through on-site habitat creation or enhancement, off-site biodiversity units, or contributions to wider ecological networks and coastal nature recovery initiatives.

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Southampton lies within the South Hampshire Lowlands National Character Area. The city’s ecology is shaped by habitats such as coastal saltmarsh, intertidal mudflats, woodlands, and urban green spaces, which together support diverse wildlife including nationally important bird populations.

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The urban coastal setting of Southampton presents both challenges and opportunities for BNG. Restoration of coastal habitats, enhancement of urban greenspaces, and integration of green infrastructure are key to delivering biodiversity uplift.

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For developers, landowners, and planning professionals working in Southampton, understanding local habitats, planning policies, and BNG requirements is essential. Our team provides BNG assessments, habitat mapping, and tailored advice to support biodiversity enhancement.

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To learn more or receive updates about BNG units and schemes in the area, get in touch with us.