former site (of something); site (e.g. of a demolished building)
跡地に草が生い茂った。
Grass grew thick over the former site.
廃校の跡地は市民の公園になった。
The former site of the closed school became a public park.
大型スーパーの跡地に複合商業施設が建設される予定だ。
A complex commercial facility is planned to be built on the former site of the large supermarket.