It is fair to say that we continue to work hard to press Network Rail to pick up that specific point. I believe that we have made more progress than ever before in addressing those issues. It is important that we look at all areas of land that are not being used, and that is exactly what this planning process aims to do.
I shall now, if I may, make some progress and turn to Amendment 89L and compulsory acquisition. The noble Lord, Lord Campbell-Savours, has argued—and I accept his passion on this subject—that the imperative for house building is so great that land acquired for that purpose should be acquired as cheaply as possible. There is no doubt that more houses should be built, and that cheap land would help towards that end: he makes a very fair point.
The need for housing is not, however, the only imperative in play when land is acquired by compulsion. The acquiring authority is acting in the public interest, but in return the claimants, whose land and property is being taken from them, must be treated fairly. It may help the Committee if I briefly outline the principles of compensation for land taken by compulsion.
The compensation code is underpinned by the principle of equivalence. This means that the owner should be paid neither less nor more than his loss. The code provides that land shall be purchased at its open market value, disregarding the effect of the scheme underlying the compulsory purchase. The land is valued in a construct called the “no-scheme world”, whereby any increase or decrease in value which is due to the scheme is disregarded. Land will always have its existing use value, but market value also takes into account the effect of any planning permissions that have already been granted, and also the prospect of future planning permissions. This is generally known, as I am sure the noble Lord will know, as “hope value”. In the context of compensation for compulsory purchase, all this is assessed according to the planning assumptions in the Land Compensation Act 1961, which require the valuer
to assume the scheme underlying the acquisition is cancelled. Your Lordships’ House may recall that these were reformed in the Localism Act 2011.
In some situations there will be no hope value, because the individual claimant could not have obtained planning permission for some more valuable use. For example, the land might be in an isolated rural location where permission for development would have been unlikely to be granted in the absence of a comprehensive scheme requiring compulsory purchase powers. In other situations, perhaps where land is acquired near an existing settlement, there will be pre-existing prospects for development on the land—in other words, development potential which existed prior to the scheme—and the strength of those prospects will be reflected in the market value of the land.