Technology

In the US installation of cameras is actually pretty similar, but it's a property thing more than a privacy thing.

For instance, Flock made a deal with a local HOA to install cameras, but the fence lines for the houses are at the property line, so where they're wanting to place the cameras is in the public right-of-way. So they need to request a license to encroach into public property with private improvements.

However, cameras on private property facing public property are perfectly legal. And any private space visible from public property also has no "reasonable expectation of privacy."

Private property in public view not having an expectation of privacy sounds insane, but prohibiting recording of publicly-visible property essentially bans almost all outdoor recording of any kind because some private property is probably going to be somewhere in the frame.

If I take a selfie in the break room of my office (2nd floor), the background will include bits of dozens of private properties through the window.