Clapham Common in south London will be transformed into a sea of tents, union flags and bunting for three days, providing a base for 10,000 campers.
"Camp Royale" will provide the setting for loyal subjects to soak up the quintessentially British atmosphere, with events unfolding on a giant screen as they sip free Yorkshire Tea.
But rather than the casual apparel usually favored by campers, revelers will be encouraged to dress for the occasion, with prizes on offer for best-dressed guests and tents with the most creative interior design.
The pop-up campsite will run from Thursday, April 28 -- the day before the wedding -- to Sunday, May 1, at a price of £75 ($US125) per person for the three nights.
Coaches will be provided by long-distance bus company National Express to take revelers to the site from 35 UK locations.
Joy Williams from National Express said: "We are 100 percent committed to giving people from all corners of the country a hassle-free and cost-effective alternative to cars and central London hotels."
A Lambeth Council spokesman said: "Clapham Common is a London landmark and a great location for royal wedding visitors and partygoers to base themselves and join in the fun."
The camp will have 24-hour security plus hot showers, toilet facilities, a dedicated quiet zone and a family zone.
A "glamping" zone will provide some campers with 18-foot (5m) tipis boasting beds, sheepskin rugs and tables.