I can't understand the 'we'll stick with this, thanks'. The property market is insane and distorting. We're sinking a massive proportion of GDP into propping up house prices in the SE - which benefit nobody, when with modern tech there is not one single reason those jobs couldn't be elsewhere.
We live in one of the towns on the image pp posted of the highest council taxes in the country. Our house is worth a bit more than £500k, but doesn't have enough bedrooms for our kids (multiple birth + autism meaning they can't share long term). We can't extend to build more bedrooms or otherwise increase the value of our home because we would be over-investing against it, like a lot of the houses around here. Very ordinary houses pimped out to the max to try and justify an artificial price hike on next sale.
We can't go up a band because of stamp duty. On paper we could afford to, but add in a £50k tax and we can't make the figures work. Whatever happens, we need to get rid of that tax and reform the ridiculous way property sales work in this country to take some of the uncertainty out of moving.
Something will have to happen now anyway. As soon as we started talking seriously about taking stamp duty off the table, it became a matter of when, not if.