Hi, thanks very much for yor question. My name's XXXXX XXXXX I'm going to assist you with it.
In order to check for charges on a registered property you need to go to the following website: https://www.landregistry.gov.ukOnce you have created an account (which is a very straightforward process) click on the tab that says "Find a Property". This can be found near the top of the page. You can then enter the details of the relevant property and you will be able to order a set of register entries. You will be sent a link to these (via email), as soon as you have paid the small fee.Once you have downloaded the document from the link, look in the C Register (the "Charges Register") of the title entries. If there are any charges or mortgages, these will be set out there.
I hope that answers your question. If so, please do take a moment to rate my answer and don't hesitate to let me know if you need any further clairifcation on the above.