The Silverstone project is to preserve its motor racing heritage, while the AlexandraPalace scheme is to restore and re-open the BBC studios' Victorian theatre.
Last month Brown played at a ceremony at London's AlexandraPalace which saw his induction into the UK Music Hall of Fame, 20 years after entering the US equivalent.
However, Harrison, who won promoter Barry Hearn's Prizefighter tournament last October to keep his career afloat, admitted that defeat to his Polish opponent at AlexandraPalace would end his career.
Taylor, ranked number one in the Professional Darts Corporation, won his 21st tournament of 2009 and will now turn his attentions to claiming a 15th world title at the AlexandraPalace in December.
Mardle failed to rekindle the form which saw him defeat Robert Thornton in round two and Stompe, who has already defeated Andy Jenkins and Alan Tabern on his AlexandraPalace debut, will take on Phil Taylor on New Year's Day.