George Mugliston bought the house & land for £900 on 30 April 1833.
I cannot find a reference to any 'vaults' or brewery etc. in the Indenture.
The earliest mention of a brewery on Spa Lane, that I've found, was in 1844 when Edward Mugliston – one of George's sons – was called the owner.
1849 map showing Edward Mugliston's premises.