Land Agent in Pembrokeshire: Understanding Biodiversity Net Gain

Rural land management in Pembrokeshire, and across south west Wales, is evolving as landowners respond to changing economic conditions, environmental policy, and agricultural reform. For many farmers and estate owners, this shift presents an opportunity to rethink how land is used—balancing traditional farming with more sustainable and commercially resilient approaches. 

As subsidies continue to change, there is increasing interest in diversification and alternative income streams. This includes environmental schemes such as Biodiversity Net Gain (BNG), as well as assessing development potential where appropriate. 

At Collington Winter Environmental, we provide a professional service to landowners, farmers, and developers throughout Pembrokeshire. With extensive experience in land management and ecological planning, we support clients from initial feasibility through to long-term project delivery. 

Biodiversity Net Gain (BNG) is becoming an increasingly important part of land management and development across Wales. Under current planning approaches, developments are expected to deliver measurable improvements to biodiversity, creating new opportunities for landowners. 

Where biodiversity improvements cannot be achieved on-site, developers may need to secure off-site biodiversity units. This has led to the emergence of a growing market, where landowners can generate income by creating or enhancing habitats on their land. 

In Pembrokeshire and the wider south west Wales region, demand for biodiversity units is expected to increase alongside ongoing development. This presents a valuable opportunity for landowners to establish long-term income streams while contributing to nature recovery. 

However, BNG schemes involve long-term commitments. Land used for biodiversity enhancement is typically subject to agreements lasting at least 30 years, requiring careful planning and informed decision-making. 

A habitat bank is an area of land that is managed specifically to create or enhance biodiversity over the long term. The ecological improvements made are measured using the statutory biodiversity metric and converted into biodiversity units, which can be sold to developers. 

In Pembrokeshire, habitat banks may include: 

• Restoration of species-rich grassland  

• Wetland creation in low-lying areas  

• Native woodland planting  

• Hedgerow restoration and expansion  

These projects can provide both environmental benefits and a stable, long-term income stream for landowners. 

Is BNG suitable for all land in Pembrokeshire? 
Not all land is suitable for biodiversity net gain schemes. Suitability depends on factors such as existing habitat condition, surrounding landscape, and the potential for biodiversity improvement. A professional ecological assessment is required. 

How much income can BNG generate? 
Returns vary depending on location, habitat type, and market demand. In some cases, habitat banking can generate significant income over a 30-year period, particularly in areas with strong development activity. 

How long do BNG agreements last? 
BNG agreements typically require land to be managed for biodiversity purposes for a minimum of 30 years, ensuring long-term environmental benefits. 

Can BNG work alongside farming? 
Some lower-intensity land uses can be combined with biodiversity projects. However, more intensive habitat creation may require land to be taken out of agricultural production. 

At Collington Winter Environmental, we provide specialist support for landowners and developers across Pembrokeshire and south west Wales. Our team combines ecological expertise with practical land management advice to deliver commercially viable and environmentally responsible solutions. 

We support clients with: 

• Site identification and feasibility assessments  

• Habitat bank creation and management planning  

• Biodiversity unit valuation and market advice  

• Negotiation of BNG agreements  

• Planning and regulatory compliance  

Our approach ensures that landowners can confidently explore new opportunities while maintaining the long-term value of their land. 

If you are considering Biodiversity Net Gain, selling land, or exploring the development potential of your land in Pembrokeshire, our team is here to help.