If you had already put your house into a trust before going into a care home, you don’t own the property. Since the property is already in trust, it is not a part of your capital anymore, and it cannot be considered when calculating funds for your care.
However, if the local council thinks you had put your property into a trust to avoid care home fees, it can challenge your exemption. But the council has to prove that at the time you had put the property into a trust, you had a realistic expectation of requiring home care in the future.
But they cannot prove you were putting house in trust to avoid care home fees if you were healthy and fit when you transferred the property.