From the Federal perspective (the National Register of Historic Places is part of the National Park Service), a property owner can do whatever they want with their property as long as there are no Federal monies attached to the property.
I think you probably mean the metaphor of piercing eyes, it means someone who has a really intense look in their eyes. Sometimes it could be that the colour of their eyes is quite different, like a really icy blue colour. piercing eyes are eyes that can see straight through a person. SUPP is right.
cat'sâeye. play. noun \Ëkat-ËsÄ«\. Definition of cat'sâeye for English Language Learners. : a jewel that has a pale stripe running down its middle which makes it look like the eye of a cat. : a marble with round circles that look like eyes.