If you have a home that is considered of high value then it is unlikely that a standard buildings and contents insurance policy will extend to service your needs in the case of a claim.
Some homes, and their contents, are more valuable than others. High value home insurance exists to provide adequate cover for people whose houses and possessions are of a certain standard and net worth. The premiums are worked out in the same way but the cover itself is designed to protect houses and contents of a greater value.
If you own your own home then it is likely that you have taken out a home insurance policy. However you may be potentially unaware that it is not effectively covering your house or all of your valuable contents such as jewellery, electrical equipment or even those of your friends and relatives when they come to stay with you.