Thank you for the question. If the house is owned by you then it is unlikely to form part of the estate. However what you require to do is start the probate process. You can start the probate if you are an executor of the Will if not, the exacter will have to do this given the value of the estate. It is advisable to have a representative do this on your behalf as it can be quite overwhelming if you are not educated in this area. In terms of the IHT, this will entirely depend on if there was a transferable element or not.
I shall provide you with a helpful link that will assist you in finding a solicitor/representative near your local area. This will provide you with someone nearby your area who can assist you if required.
I hope this information proved helpful. You will find a local solicitor who deals with these matters on the law society webpage which is as follows;
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