"What if I am concerned that my spouse or partner may be trying to sell a property without my consent?
If you are worried that your spouse or partner, whether you are married or not, may be imminently trying to sell a property in which they, and possibly you, have an interest, you should speak to a specialist family lawyer as a matter of urgency. This is especially urgent if you know or suspect that the property is registered in your partner’s sole name, or in the name of a third party, such as a company or trust that your partner may be involved with. You may have found out that they have marketed the property with an estate agent or even that exchange is looming. You need to move quickly! The property in this case may not necessarily be your family home – it could be an investment property or holiday home.
In this situation, matrimonial home rights may not be enough to protect from the property being sold or transferred from underneath you, and this won’t be an option for you anyway if you are not married. To actually prevent your partner from dealing with the property you may need a restriction, which will be entered with the Land Registry. This will ensure that your written consent must be obtained before your spouse or anyone else sells the property or otherwise tries to dispose of it. "