Among those expected to make big fortunes are suppliers of alternative building technologies.
The project will be completed in two years at a cost of Sh2.3 billion.
Developers adopt unconventional tactics to attract elusive home buyers.
The State has pledged to offer developers about 7,000 acres of land as part of an incentive package.
Property owners have often cited high costs of the systems as a hindrance to increased uptake.
The Chinese-built railway began commercial operations on January 1.
Stamp duty, 2% to 4% of the property value, is a major expense for home buyers.
Slow approvals of Public Private Partnerships usually puts off high quality investors.
The project is expected to gift Tanzania with its first high-speed railway.
This is expected to be the largest mall in the neighbourhood.