How much would doc's home from back to the future cost?

London's Olympic Park has been painstakingly transformed this summer into the location from Robert Zemeckis' 1985 sci-fi classic, complete with clock tower. While that has been to host a film-themed event called Secret Cinema, the Back to the Future fever has spread into the real estate world too, with one US blog attempting to work out how much Doc Brown's property in the film would be worth.

While some fans will be counting down to 2015, the setting for Back to the Future: Part II, Movoto has been spending its time wiring up a flux capacitator to calculate the value of the fictional home, which only appears in the movie for a few short scenes. Indeed, all we glimpse is a living room, a hallway and a garage - although the garage does, admittedly, contain a priceless time machine.

Movoto, though, traced back the production design to the building's original inspiration: the Gamble House in Pasadena, California. This is the key to the three questions one must ask when valuing an imaginary property: How big is it? Where is it? How much is the average area's house price?

With the size of Gamble House at an estimated 8,100 square feet and Hill Valley rumoured to be near Grass Valley and Colfax, california, the only remaining question is how much homes in the city cost. The average price per square foot is $207, which means that Doc Brown's home would theoretically cost $1,676,700. Great Scott! How would anyone afford that? The answer, appropriately enough, lies in a time machine: hop back to 1955 and the value would be a relatively affordable $194,981. Time machine not included.