Article 824 of Civil Code

Co-owners owning at least three quarters of the commonly owned property may decide, to improve enjoyment of that property, upon fundamental changes and alterations to its intended purpose exceeding ordinary administration, provided they notify the remaining co-owners of that decision in writing before making the change or alteration. Any of the latter who dissents may submit his objection to the court within thirty days of notification. 2 - If the court approves the majority's decision, it may order such measures as it deems appropriate.