Association of British Insurers
Remember insurance may be required from the time of exchange. Look at the contract terms to check.
Bank of England
Details of how the bank operates.
You can make online pre-completion searches at Companies House. They will be vital in unregistered transactions when the seller is a corporation.
Council of Mortgage Lenders
There is an online version of the Handbook available at this address, which should be referred to in cases of doubt about the requirements of the lender at this stage of the transaction.
The location for pre-completion registered land searches and access to the Land Registry Portal for online searches.
A street map anywhere in the UK