My Lords, making biodiversity net gain a mandatory requirement for most development is a good thing, though it will need several safeguards. Extending the net gain provision
to nationally significant infrastructure is welcome, and I congratulate the Minister on that amendment. However, I believe that we need Amendment 194C in the name of my noble friend Lady Jones of Whitchurch, to also include major infrastructure projects consented in other ways, including hybrid Bills, Transport and Works Act orders and whatever the new consenting mechanisms are that the Government invent in the new planning Bill. It is a pity that we have not yet seen the proposals arising from the consultation on planning. Can the Minister give us an indication of when we will see the Government’s proposals for planning? It would be extremely disappointing if major projects such as HS2 and East West Rail were not required to deliver biodiversity net gain.
I know that, latterly, HS2 has opted voluntarily to deliver biodiversity net gain on some of its later sections, if you can call being frog-marched into this by the NGOs, local protest groups and the Government a voluntary agreement. These big government-sponsored, taxpayer-supported and highly controversial projects should be like Pharaoh’s wife and be obligated to deliver the highest standards of biodiversity net gain. Of course, HS2 can never deliver biodiversity net gain as long as it is damaging ancient woodland, which is an irreplaceable habitat and therefore represents an irreplaceable biodiversity loss.
The Minister kindly wrote to noble Lords last week about HS2 in response to issues raised by the noble Lord, Lord Framlingham. His letter, alas, fuelled my concerns about the potential misuse of the term “biodiversity net gain.” He indicated that HS2 phase 2b—Crewe to Manchester—would deliver biodiversity net gain, but he then went on to say that, because ancient woodland could not be replaced, it would simply be out of the scope of the net gain objective for HS2. Therefore, HS2 will be able to boast publicly of being a net gain project, while still being the single biggest cause of damage to our declining and irreplaceable ancient woodland. This is, frankly, misleading if not mendacious. Defra, we understand, is planning a consultation, expected to start this summer, on the development of regulations and guidance on irreplaceable habitats. Can the Minister assure the House that the regulations and guidance will not allow projects that are, in reality, not delivering net gain to portray themselves as net gain projects?
Biodiversity net gain needs other safeguards. Amendment 198A in my name would make sure that existing and possibly long-standing nature sites and habitats were not simply regarded as tradeable for newly created sites elsewhere—as the noble Baroness, Lady Bennett, said, possibly quite far elsewhere—under the net gain provisions. My amendment would ensure that the mitigation hierarchy had been followed. I am sure that noble Lords read the mitigation hierarchy every night before they go to bed, but I shall explain.
The mitigation hierarchy is part of the National Planning Policy Framework and outlines a set of principles that local planning authorities should work through in determining whether to approve a planning application impacting on biodiversity. It is a sort of stepwise, catechism approach. First, developers would be asked to seek to avoid impacts on biodiversity and, if that was not possible, to minimise them and then
take onsite measures to rehabilitate or restore biodiversity, before finally resorting to offsetting residual, unavoidable impacts offsite. Can the Minister assure the Committee that the mitigation hierarchy will remain a requirement of the planning system and that there will be sufficient safeguards to ensure that offsite net gain is a last, not a first, resort under the net gain and planning provisions? It is on both the net gain and the changes in the planning system that the Minister needs to assure us.
A further strengthening of the net gain provisions is required. This is pointed out by my noble friend Lady Jones of Whitchurch, supported by the noble Baronesses, Lady Parminter and Lady Bennett of Manor Castle, and the noble Lord, Lord Teverson, in Amendments 196 and 201AZB. They would require habitats created under net gain to be maintained in perpetuity rather than only for 30 years. Previous speakers have debated this. The reality is that some created habitats will only just get going in 30 years; they certainly will not have reached the richness, complexity and resilience of long-standing habitats. The Government’s carbon scheme requires woodland sites created for carbon storage to persist for 100 years, so if it is possible to get that sort of longevity for a site despite changes of hands and ownership and the length of the policy, why can we not do it for biodiversity net gain?
We must not get into the crazy position that arose in south Wales with the extension of the M5 over the sensitive wetland sites in the Gwent Levels. Compensation habitat was created but, when the M4 relief road proposals came forward 20 years later, they planned to go straight through the compensation habitat. Mercifully, the Welsh Government reacted magnificently and rejected the plans. We do not want serial decimation of net gain habitat. Can the Minister assure the Committee that habitat created in the interests of net gain will not be allowed to disappear after 30 years? Will he accept the amendment in the name of my noble friend Lady Jones of Whitchurch?