An anonymous landowner’s decision to build an 85,000-square foot family compound has upset more than a hundred Benedict Canyon neighbors, the Los Angeles Times reports.

If approved, the “megamansion” on Tower Lane will feature a 42,681-square-foot house, a double-winged villa of more than 27,000 square feet, a 4,400-square foot guest house, luxury staff quarters and a gatehouse. The entire property with its many structures would take up an area larger than Griffith Observatory, according to the Times.

Megamansions are nothing new in the canyons above Sunset Boulevard. Although the popular 90210 ZIP code is home to many mansions with luxury amenities such as swimming pools and tennis courts, the proposed size of the compound “pushes the bounds of common sense and decency” residents told the Times. The neighborhood, which is currently home to residents Bruce Springsteen, David Beckham, and Jay Leno, includes over 150 neighbors who have banned together through e-mails, house gatherings and phone calls to stop the construction.  The group’s next step is to launch a website and a door-to-door campaign.

Although the owner has not been disclosed, he or she has created a business, Tower Lane Properties Inc., to buy three plots of land for $12 million. The owner has also hired a team of layers, architects, intermediaries and sales brokers to manage the project. According to the Times, city planning papers list Mansour Fustok of London as the president of Tower Lane Properties.

Mansour Fustok of London is King Abdullah’s former brother-in-law and the uncle of one of the king’s sons, according to the Times. However, when he was contacted in his home in London, Fustok told the Times he was prohibited from giving out the name of the owner and said the proposed construction will be a regular “Mediterranean-style house,” and that a “very nice family is going to live there.”

The group of neighborhood protestors says that the city has ignored many omissions in the property owner’s application. They contend that the owner has tried to avoid regulations limiting retaining walls in an area with steep hillsides. In addition, they say that the owner has tried to “piecemeal” the project to void a review under the California Environmental Quality Act. 

Whether or not the mystery owners get to build his megamansion, even wealthy Benedict Canyon residents don’t understand “why anyone needs an 80,000-square-foot compound."