The Greens, it appears, are taking over Melbourne.

They might hold just a single lower-house seat, but the party enjoyed huge swings in its favour in the key seats of Batman and Wills at last week's federal election.

Where else are they gaining ground? There's no need to trawl through the Australian Electoral Commission's website. A Melbourne engineer with a thing for maps and data has done the leg work for us.

Coburg resident Tim Wardrop was intrigued at how voting patterns had changed in his electorate of Wills over the years. He lives south of the so-called 'hipster-proof fence' of Bell Street, and noticed support for the Greens had grown since the 2013 election.