What is required for the perfection of a security interest in a fixture?

To perfect a security interest in a fixture, a fixture filing is required. This involves filing a financing statement in the appropriate office, typically the county where the fixture is located. The fixture filing serves to give notice to other creditors and parties interested in the property that there is a security interest in the fixture that is attached to real property.

This process is essential because, without proper perfection, the secured party may lose their priority against other creditors and could risk not having enforceable rights against the fixture. Unlike consumer goods, which might only require filing to perfect a security interest, fixtures are inherently tied to real property law and thus necessitate this specific type of filing to adequately protect the secured party's interest.

The other options presented do not satisfy the requirement for perfection in the case of fixtures; perfection cannot be achieved simply by classifying them as consumer goods or by repaying obligations. Furthermore, a court order for repossession is not a mechanism for perfection but rather relates to enforcement actions after perfection has already occurred.