Flood Plains: Housing Development

Baroness Ritchie of Downpatrick Excerpts

Thursday 24th June 2021 Grand Committee

[Baroness Ritchie of Downpatrick (Non-Afl) [V]]

My Lords, it is a pleasure to follow the noble Lord, Lord Randall of Uxbridge, on this important topic. I congratulate the noble Baroness, Lady McIntosh of Pickering, on securing this important debate and for outlining comprehensively the case for addressing housing developments on functional flood plains in the context of climate change and the whole role of planning in relation to that.

I recall that, under the then chairmanship of the noble Baroness, Lady McIntosh, the EFRA Select Committee in the other place, of which I was a member, had an inquiry on this specific issue and took evidence in relation to Flood Re and sustainable drainage schemes. Particular reference was made by the noble Baroness, as chair, of the whole area of non-implementation of the Pitt review, which was shortly after 2012. It is interesting to note that these issues are still pertinent. Indeed, the noble Baroness, Lady McIntosh, had submitted an amendment to the Environment Bill which urges the Secretary of State to make provision by way of regulations to approve and promote sustainable drainage systems and natural flood defences.

The Government, by way of strengthening the Environment Bill, should ensure that proper and adequate controls are put in place so that effective mitigation measures ensure that major new housing developments are fully protected and episodes of flooding are avoided. It is worth noting that we are now experiencing warmer, wetter summers and warmer winters—undoubtedly the result of climate change. Heavy rainfall with large amounts of surface water has already caused problems for housing estates constructed on functional flood plains.

I realise that this issue is devolved to the devolved Administrations, but I would like to give an example from my former constituency where I reside. From a Northern Ireland perspective, last summer we experienced very heavy rainfall in Newcastle, which is at the foothills of the Mourne mountains where the rivers flow directly into the Irish Sea. This is a coastal town and the dwellers experienced much inundation of water. Some have now lived in other properties for a considerable time while waiting for their houses to be renovated and improved or while waiting on the necessary insurance. Because of that heavy rainfall, rivers flowing into the Irish Sea burst their banks and have overcome roads, footpaths and houses, causing considerable damage and distress.

My colleague, the Minister for Infrastructure in Northern Ireland, has accelerated a flood alleviation scheme, on which work has already started. Previous flood alleviation schemes in this town, which were initially successful, simply displaced water, which resulted in last year’s flooding episode. It is important to ensure that the latest scheme is resilient and resistant to the displacement of water to other locations. Therefore, the National Planning Policy Framework is key. It states that:

“Where development is necessary … the development should be made safe for its lifetime without increasing flood risk elsewhere.”


It is important that housing, both private and social, is provided where there is a clear need as long as it meets environmental standards and is resistant to flooding waters. That is why construction on flood plains should be opposed unless there is a specific need, and then it should be carefully circumscribed by planning regulations. Sustainable drainage schemes should be availed of. Like other noble Lords and the noble Baroness, Lady McIntosh, I ask when the PLP review will be fully implemented, and when will a planning Bill be published that will deal with these particular issues?