Local firms did not meet the financial threshold set by the government.
Most Kenyans acquiring houses are not doing so for speculative intentions.
The 0.5 per cent construction levy is payable to the authority by owners of projects above Sh5 million.
A group of rich Qataris jetted into Kenya this week to scout for deals in the country.
Mr Pattni has been investing heavily in the city's land and property sector since January.
The property is expected to appeal to high net worth international buyers.
Nairobi building permit fees are said to be the highest across the continent.
Thika Road completion has also seen several shopping malls being rolled out along the route.
Developers are unveiling low cost housing projects targeting individuals earning less than 30,000 a month.
The masterplan proposes the creation of more than a dozen commercial centres.