Atlantic Yards, in Brooklyn, N.Y., to be developed by Forest City Ratner Companies

16 high-rise buildings, including 511-foot glass tower called Miss Brooklyn

180-room hotel in the tower

Luxury housing, with 600 condominiums and 2,500 rental apartments reserved for low- or middle-income families

8 acres of open space

18,000-seat "Barclay's" basketball arena

$4.2 billion value

Will receive $2 billion in public assistance

247,000 square feet of retail, 336,000 square feet of office space

Grand Avenue, in Los Angeles, Calif., to be developed by Related Companies

The first phase of the project will feature two high-rise translucent glass towers

275-room, five-star hotel, 480 feet

Luxury housing, with up to 520 units reserved for low- or middle- income families

16-acre park

Health club, specialty apparel shops, specialty food market and bookstore among the proposed retail components

$2.05 billion value

Will receive $40 million in tax rebates over 20 years

350,000 to 400,000 square feet of retail and restaurants

King Alfred, in Hove, England, to be developed by Karis development company

Proposed two towers with possible glass panels, 25 and 29 stories tall, with eight other buildings

751 residential units, some of which will be reserved for low- or middle-income families

Restored sports complex that would include three swimming pools, basketball sports hall, party room and health and fitness facility

The project will feature wind turbines and solar hot water heating, per local government requirements

Shops, restaurants, bars and a doctor's office have been discussed as potential commercial possibilities

Still-unnamed project in Lehi, to be developed by G Code Ventures

One 450-foot, five-star high-rise hotel, with 200-300 rooms

22-acre wakeboarding lake

10,000-seat, 500,000-square-foot in-ground sports arena

2,500 high-end housing units

Outdoor amphitheater

Retail, restaurants, office space and possible health facility with sports-related theme among possibilities

Project estimate to cost billions of dollars

Developer has not yet requested public funds

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Sources: Forest City Ratners Companies, The Related Companies, the BBC, the South East England Regional Assembly Regional Planning Committee, The New York Times and the Los Angeles Times