Planning and Infrastructure Bill

Viscount Trenchard Excerpts

Committee stage
Thursday 11th September 2025 Lords Chamber

This is not the first time we have talked about chalk streams in this Chamber. We come to them every time there is an environment Bill. They are really important not just from an environmental point of view but, as the noble Lord, Lord Blencathra, said, from a cultural and heritage point of view. If the Government are serious about showing that they really want protections for the environment, now is the time to accept the amendments on chalk streams.

[Viscount Trenchard (Con)]

My Lords, I support my noble friends Lord Blencathra and Lord Bellingham—who will I think speak later in this group—and other noble Lords in their Amendment 146. I agree with everything that has been said.

Your Lordships may wonder why I am also so keen to support Amendment 147, in the name of the right reverend Prelate, the Bishop of Norwich, my noble friend Lord Caithness and the noble Baroness, Lady Parminter, who has just spoken most effectively. I declare an interest as the owner of a short stretch of the River Rib in Hertfordshire. I hope the Minister will not suggest that the right reverend Prelate’s Amendment 147 is not necessary and will instead consider the arguments for special protection for chalk streams, as was accepted by the Government and supported by your Lordships’ House in the Levelling-up and Regeneration Act. Two years ago, during the passage of that Act, I introduced an amendment designed to support a chalk stream recovery package and provide protection for our beautiful chalk streams as a specific, unique and precious natural resource.

I was delighted at that time that the noble Baroness, Lady Taylor of Stevenage, put her name to my amendment and spoke in support of it. I hope the Minister will not mind if I quote what she said:

“I am lucky enough to have spent my life living in the wonderful county of Hertfordshire. For those of you who are not aware, Hertfordshire contains over 20% of the world’s unique and special, natural and precious chalk streams.”

She continued:

“If our chalk streams were buildings, they would be UNESCO heritage sites. Let us protect them as though they were”.—[Official Report, 18/7/25; col. 2269.]


Like the noble Baroness, I was brought up in and live in Hertfordshire, and I was delighted that she appreciated the special and distinct needs of chalk streams, which have disproportionately suffered from pollution and excess abstraction. My noble friend Lord Caithness also supported my amendment. We successfully persuaded my then noble friend, the noble Lord, Lord Benyon, to introduce a government amendment which broadly achieved the same purpose.

Can the Minister now confirm whether the Government intend to set explicit outcomes regarding the protection of chalk streams as specified in the Levelling-up and Regeneration Act? The previous Government had endorsed the “one big wish” put forward by the catchment-based approach initiative, CaBA, for statutory protection and priority status for chalk streams. Can she also say whether the Government intend to build on and maintain priority status for chalk streams? I think that she has supported the perseverance of CaBA, led by Charles Rangeley-Wilson.

The CaBA chalk stream strategy is very clear that a special status is needed for these globally rare and locally precious treasures, but progress on the strategy has been disappointing, although there has been a petition, “Don’t Abandon the Chalk Stream”, which secured enough signatures to require a government response, and the Petitions Committee of another place has requested an updated response to that petition.

The noble Baroness, Lady Parminter, explained very well just now why chalk streams need special protection, so I will not repeat the points that she so ably made, but I will say that to take specific account of chalk streams in spatial development strategies would allow local authorities to provide a safety net to protect them from the indirect impacts of development where other regimes have failed to do so. Taking chalk streams into account should facilitate the action so desperately needed to curb additional demand for water and make sure that appropriate wastewater infrastructure is in place before development occurs.

The Rivers Trust is right in calling for chalk streams to be defined as irreplaceable habitats. This would minimise direct harm from development and encourage enhancement of chalk streams through the biodiversity net gain regime. The Minister supported these arguments in the Levelling-up and Regeneration Act. I look forward to hearing whether she still supports them in this Bill before your Lordships now.

[Baroness Bennett of Manor Castle (GP)]

My Lords, I will concentrate chiefly on Amendment 150 in the name of the noble Baroness, Lady Grender, to which I have attached my name, but I shall briefly comment on Amendment 148, very comprehensively introduced by the noble Baroness, Lady Parminter. Indeed, we have majored on chalk streams and I suspect we will hear a lot more about them. I am just going to cross-reference a contribution I made earlier this week about the River Itchen and the amount of plastics and fibreglass fibres that have just been discovered in new research in that chalk stream. This amendment addresses permissible activities. We do not know where those fibres in the River Itchen are coming from, but we desperately need to think about what activities we can afford to allow and what the planning permission can be beside those chalk streams. The extraction of water is the obvious issue here, but we also have to think about pollution and we really have to apply the precautionary principle to these crucial environments.

Amendment 150 says that a spatial development strategy must take account of local wildlife sites, which is crucial in this terribly nature-depleted country. There are, by a very precise count, 43,992 local wildlife sites, of which we know the status of only 15%. That is what the Wildlife Trusts say. SSSIs have greater legal protection. We know that very often does not work, but these local wildlife sites too often fall under the radar and are not sufficiently considered. They are often stepping stones for wildlife to get from one place to another crucial environment, or parts of corridors that enable wildlife communities to mix, to get genetic diversity, among other crucial factors, so it is crucial that the spatial development strategy totally takes these into account.

I think this also cross-references Amendment 152ZA, to which I shall speak briefly. I am strongly in favour of this amendment and commend the noble Baroness, Lady Hodgson of Abinger, for bringing it. I am sure that she is going to introduce it shortly, but it is about the welfare of animals being considered in spatial development strategies. We think about such things as light pollution, noise pollution, the cutting off of corridors and the isolating of populations. These things that human developments are doing do not sufficiently consider the welfare of animals, and they very much relate to local wildlife sites as well.