A building on an island can have a significant impact on a city in multiple ways. Firstly, in terms of economy, it can create job opportunities not only on the island but also in the city for those involved in construction, maintenance, and related services. Secondly, from an environmental perspective, if it's designed with sustainable features, it can inspire the city to adopt more green practices. For instance, if the building has a great water - recycling system, the city might consider implementing similar systems. Thirdly, socially, it can act as a new gathering place. People might come from the city to the island for events held in the building, which can strengthen the social fabric between the two areas.
It can change the city's skyline. If the building is tall and visible from the city, it becomes a new visual element. Also, it can affect transportation. If there are a lot of people going to and from the building on the island, new ferry or bridge routes might be developed, which in turn can change how people move around the city. Moreover, it can also influence the city's cultural identity. If the building hosts cultural events or represents a certain culture, it enriches the city's cultural tapestry.
A building on an island can attract tourists to the city. For example, if it's a unique or famous building, like the Sydney Opera House on Bennelong Point (an island in Sydney Harbour), it draws people from all over the world. These tourists then spend money in the city, boosting the local economy.