This office block oasis wears its sustainability credentials on its sleeve - a mighty fragrant sleeve at that.

Designed by Enrique Browne Arquitectos, this building in Concepción, Chile is wrapped in a striking green facade of fragrant bougainvillea, jasmine and plumbago.

A building with a scent!

However, it doesn't just smell and look pretty.

Its green wall is made of local wood and shields the structure from the sun in all directions except south, while also acting as insulation.

The south wall is constructed from a high-performance local corrugated metal that insulates the inside and makes it highly energy efficient.

While sustainable buildings don't always have to be so literally green, it is certainly an effective way to spread the message to those passing by.