Astrid is a residential development located at 11–15 Fishburn Crescent, Castle Hill, comprising 94 apartments across two residential buildings within the Hills Showground Precinct. The development includes basement parking, rooftop communal areas and landscaped resident spaces integrated throughout the site.

Designed by Zhinar Architects for CBD Core, the project forms part of the continuing transformation of the Castle Hill precinct following the delivery of Sydney Metro. The development responds to its evolving urban context through a contemporary built form, shared communal areas and integration within the broader residential and transport infrastructure network.