High Value Homes will basically need the SAME coverages provided in most home insurance policies. The thing with most standard policies is that the amount afforded to rebuild is usually limited and the amount of coverage for general personal property is also limited.
With a HIGH VALUE home policy, usually as with the overall value of the home there will be personal items that need to be covered for a higher “BASIC” limit.

EXAMPLES: The standard home policy will insure any piece of art for up to $500 without question during a claim , while a high value policy may insure it for $2000 without question.

Most home insurance policies are limited to a reconstruction amount ( in the event of a total loss) to $1,000,000 to $3,000,000. What do you do if your home would cost $5,000,000 to rebuild to the same quality as before the loss????