I am afraid that ignorance of the law is no defence.
If you have moved out on the last day of the lease or before, there would
have been no problem and you would not have to love given notice. However
because you have carried on after the end of the term of the lease, you have to
give three months notice.
If you read here, the paragraph headed "Vacate in on the last day of the
fixed term" http://www.netlawman.co.uk/ia/lease-quit
it explains a little more detail.
You are liable for three months rent in lieu of notice
You are however not liable for the utilities (but you are liable for the business rates) once you have given notice to those companies and the meters have been read
I appreciate that this is not the answer you wanted but there is no point
in me misleading you
Can I help further?
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