Raymond MD Gautam Singhania said Mumbai offers redevelopment opportunities worth $2 trillion. "Mumbai was built 60-80 years ago. What was best of the best then, is a slum now," he said. "Value of Sophia College Lane (where Singhania's JK House is located) redevelopment could touch $2 billion," he added. JK House is India's second most expensive property after Ambanis' Antilia.