Gentle British Shorthair looking for a quiet forever home

I never thought I would write something like this but life changes sometimes faster than we expect. Our British Shorthair girl named Mila has been living with us for almost three years. She is not the type of cat that climbs curtains or breaks things, actually she spends most of the day sitting near the window watching birds outside like it is her personal television. When guests come she first observes them from distance and only after some minutes she walks slowly and sits near their feet. She has a very calm personality and honestly she made our home much more peaceful. The reason we are searching a new home is that we recently moved into a smaller apartment and my partner unfortunately developed a strong allergy reaction. It was not an easy decision and we waited months hoping it would improve but it didn't. She eats both dry and wet food without problems, litter trained perfectly and never damaged furniture. We really hope she goes to someone who understands quiet cats and not someone expecting a hyper kitten.