Because if only 1 developer want build
College, Mall, Hospital, Conventional Center, Shop Lot, Club House, Garden.
They sure need phase by phase to do it.
So if 3 developer running concurrent (somemore 3 of them also aggressive developer), just example as below.
While IJM building College, same times Tropicana building Club House, same times Eco World Building Garden.
While IJM building Mall & Shop Lot, same times Tropicana building Hospital, same times Eco World building Convention Center.
Another scientific effect is,
Tropicana no worries of build Hospital or delay due to IJM got residence supply too
IJM no worries of build mall or delay due to Eco Sanctuary got residence supply too
Eco Sanctuary no worries build Convention Center due to Tropicana and IJM got business tower supply too
If only 1 developer, always have a concern want to build shop lot first or residence first...
if shop lot but no residence, no one dare to open business
if residence but no commercial, potential buyer will think twice of convenience
*** Just like if without Gamuda Land build Kota Kemuning, i do not think Berjaya dare to build Columbia Hospital and Carefour at Bukit Rimau.
Yup, same view here.
1 developer, maybe 10 years but if 3 developers, maybe 5 years or even shorter.
Normally it is slow for the first 2 to 3 years but once things are moving and the infra are up, it will fly.