If your property has been empty for more than 2 years, you may be entitled to a VAT reduction to renovate your property. You can find more information on the GOV.UK website.
If you are planning to undertake major works or alteration works to your property, you should first check if you require planning permission and or building regulation for the works you are proposing. Contact building control applications to discuss your proposed works before starting.
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If you have purchased or inherited a derelict empty property which requires major structural works, or demolition you can appeal to the Valuation Office Agency to have the property deleted from the Council Tax lists. Council Tax would remain payable whilst the appeal is being considered.
There are currently no grants for empty property renovations unless you are a social housing or registered provider.