Can your neighbor cover a window with a trellis fence?

Whether your neighbor can cover a window with a trellis fence depends on local zoning laws, property lines, and any homeowners' association rules. Typically, trellis fences are used for aesthetic purposes or to support climbing plants, but they must comply with height restrictions and placement regulations. It's advisable for your neighbor to check with local authorities or community guidelines before proceeding. Open communication with you about their plans can also help maintain a good neighborly relationship.