Neighbours of Facebook founder Mark Zuckerberg are angry with the billionaire's security detail for "parking illegally" outside his $10m San Francisco home.

A letter has been written by those living close to the 30-year-old businessman, and distributed among residents of the Liberty Hill community.

In it, they say Zuckerberg's security team is "permanently" and "illegally" occupying "desirable parking spots" with two large silver vehicles.

It urges people to complain to the city's transportation agency, as well as Zuckerberg's residential security manager Tim Wenzel.

The neighbours also took a swipe at the lengthy renovation process for his luxury home.

"I think we've all tried to be as patient and civil as possible during the very long construction, the noise, the trash, the blocking of streets, etc.

"Now that all that circus is done, we are left with two silver SUVs permanently occupying desirable parking spots.

"It goes without saying that living close to Dolores Park and the awesome neighbouring districts already creates a challenge when it comes to street parking, so the two spots that are illegally being held for Zuck only makes matters worse."

A spokesman for the tech entrepreneur insisted the cars are parked legally, and that he is a considerate neighbour.

In 2014 neighbours alleged people were being paid to sit in parked cars overnight outside Zuckerberg's home to reserve spots for renovation workers.

Zuckerberg is also being sued by backdoor neighbour Mircea Voskerician who alleges fraud and misrepresentation over a land deal.

(BBC)