Streetdirectory.com The Rail Mall is located in Bukit Timah Singapore. Bukit Timah is considered the most expensive district in Singapore. Many high-profile personalities, expatriates and professionals reside in this posh district which houses designer villas, bungalows and high-end condominiums e.g Sterling Condominiums, Holland Fairlodge Mansion and Garden Vista. For some greeneries, head to Bukit Timah Nature Reserve or Botanical Gardens which is a perfect place to exercise or take a stroll. Raffles Town Club or Swiss Club offers recreation activities for social, family and business or for some excitement, head to Bukit Timah Saddle Club to try Horseback-riding.