Hi Greg
It does not matter how much your rebuild costs are has Intersure now do unlimited buildings insurance, you just have to work out how much your furnishings and contents are worth and get a quote to cover this, they also add damage by tenants if your require this, all in all I am quite happy with the insurance I took out this year and, for a one bed app. I pay £10 a month with no extra charges for paying by Direct Debit
PerryM