How is that figure of £150k arrived at Michael ?

Whilst I have not read the full report, the Inspector's points you highlight seem tinged entirely with healthy pragmatism and recognise that little or no scope for further change exists.

In an ideal world and on a larger site without the heritage constraints, any perceived harm could have been designed out.

Interestingly the Inspector concludes that the scheme enhances the appearance and character of the Conservation Area.

Equally importantly we will hopefully now see the building rapidly returned to beneficial use and in particular arrest the onset of an aura of deterioration that has begun to shroud the building in recent months.