What is the fine-grained topic of the following text: Apart from the usual facilities such as a swimming pool, BBQ pits, children’s pool and tennis courts, this district 9 development also comes fitted out with extras such as gourmet dining suites, sky gyms with a viewing terrace, an expansive garden and the cherry on the cake: a fully-functioning roof-top bar. Only return the topic.
Luxury amenities in a District 9 development property