Construction of a series of tower blocks by Walthamstow Central Station has been temporarily halted after some bricks fell from the building site and hit a car.
There are no reports of any injuries from the incident, which happened on Saturday.
It is believed the bricks fell on to the car park used by cab drivers next to the development.
A spokesman for developers Solum Regeneration said: “Solum takes health and safety extremely seriously.
"We are aware of an incident which occurred onsite Saturday and we are currently investigating this matter with our contractor.”
Construction of the controversial development, which includes a 14 storey Travelodge hotel and two eight storey housing blocks, is due to be completed within months.
Travelodge has scheduled for the hotel to open in September.
The developers and Waltham Forest Council say the development will help regenerate the local economy and encourage investment in the area.
But residents living nearby campaigned fiercely against the plans, saying the tower blocks would scar the landscape, reduce their privacy and attract crime.