One scheme that would be likely to face a "wealth tax" if it was introduced is architect Pollard Thomas & Edwards' £8.5m office and residential development overlooking Regent's Canal in north London. Most of the 57 flats at Angel Waterside are contained in a curved, sloping "crystal"; the rest of the flats and 1400 m2 of office space are housed in two blocks that enclose a garden courtyard at the back. After winning an architect–developer competition held by British Waterways in 1998, Pollard Thomas & Edwards brought in Groveworld as joint developer and appointed Haymills as design-and-build contractor, with Alan Conisbee & Associates as structural engineer, the Aqua Group as services engineer and Whitelaw Turkington as landscape architect.