I will let other London MPs respond more fully on the particular London issues.
I will make a little progress—otherwise, I will be up and down like a fiddler’s elbow.
Let me turn quickly to amendment 1. A 20% discount over 20 years does not really take account of the practicalities of people’s lives—20 years is far too long. We are talking about starter homes, so one would hope that people are not going to live in them for 20 years. As the Minister said, the average time people live in a house is seven years, not 20. The amendment places restrictions on starter home owners, who are precisely the generation—those aged 20 to 40—whom the Bill aims to empower. I am glad the Government are consulting on the duration of the discount and the taper. If we want builders to build and lenders to lend, we need to take a practical, not an ideological, approach—the policy has to work.
Lords amendments 9 and 10 would replace the national requirement with a requirement that is set locally, depending on local housing needs and viability assessments. That completely undermines our manifesto commitment to build these 200,000 homes, but, as my right hon. Friend the Member for Wokingham (John Redwood) mentioned, that policy is very popular. Constituents come to us saying, “I want to get a starter home. How can I get my foot on the ladder?” If we were to remove the national requirement, I fear we would delay the process.
My hon. Friend spoke earlier about productivity in the building industry. Given her experience in this area, does she accept that development of brownfield land would create an opportunity for modular construction because of the ability to build on a concrete slab, which minimises the amount of decontamination required? Is this not a great way of driving more productivity in the construction industry, particularly through brownfield developments?
That depends on the land. The hon. Member for Great Grimsby (Melanie Onn) spoke about marshland. There is no one-size-fits-all solution. It depends on the nature of the land, the flooding risk and the sort of contaminants present.
There is a great moral imperative to build on brownfield sites. I have the great fortune to have grown up in, done my building in, and now represent, as Mr Deputy Speaker will agree, part of the most beautiful county in our country—Lancashire. In Lancashire industrial towns lie adjacent to stunning countryside. We want to protect these green spaces. I know from personal experience that it can be done. As I have said, it is time consuming and can be expensive. It depends on the nature of the contamination and what is to be built, but more and more specialist companies are coming down the line with expertise in this area, which means that costs have come down and will continue to do so. The Campaign to Protect Rural England has estimated that nearly a million homes can be built on brownfield land in England. This means that not only will our green belt be protected, but, as the land has already been developed, there will be at least some infrastructure already in place.
I hope the clauses dealing with the system of “permission in principle”, which is similar to the zonal system in the US, will speed up the development of brownfield sites and contribute towards the aim of 1 million homes.
I particularly welcome the requirement for local planning authorities to have a statutory register of land, which should make it easier for developers and builders to identify brownfield sites and also give local people a sense of ownership, and reassurance that while homes are being built locally their beautiful green spaces are being protected. I would be interested to hear from the Minister whether he agrees with the Royal Institution of Chartered Surveyors that, along with the proposed measures, there should be a brownfield map—my hon. Friend the Member for North East Hampshire (Mr Jayawardena) referred to this—which includes privately owned brownfield land.
It is incumbent on us to speed up house building. If we want more people to own their homes and the prices of homes to go down, the ambitious aims of the Bill will help to achieve that and I will support it as it makes progress through this place.