Nine hectares of space from the rooftop of multi-storey car parks will be transformed into garden spaces over the next few years

Minister for National Development Mr Khaw Boon Wan wrote this in a blog post on Wednesday afternoon.

This is in addition to the existing 20 hectares, or 108 rooftop gardens on multi-storey car parks and the 111 car parks that are under construction.

Rooftop gardens on car parks usually include foot reflexology paths and study corners, and community gardens for residents to plant flowers and vegetables.

As part of the Ministry of National Development's "greening campaign", the HDB Building Research Institute also recently developed labour-saving technology including one which allows plants to thrive without irrigation.

Last year, the Government spent $230,200 implementing rooftop greenery on existing car parks and low-rise HDB blocks.

Currently, Singapore boasts over 50 hectares of rooftop greenery islandwide in housing estates, schools and shopping centres.