Please note that reporting period of Reporting Scheme for UBWs was ended on 31 December 2012.
![Enclosed balcony](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic01.jpg)
Enclosed balcony constructed of steel or aluminium structural elements, metal plates or glass.
![Enclosed rooftop structures](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic02.jpg)
Enclosed rooftop structures constructed of reinforced concrete, masonry or other materials, with a coverage of not more than 50% of the roofed-over area of the main building.
![Unenclosed rooftop structures](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic03.jpg)
Unenclosed rooftop structures constructed of steel or aluminium structural elements.
![Ground floor extension](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic04.jpg)
Ground floor extension constructed of reinforced concrete, masonry or other materials, whether or not the extension has internal access to the main building.
![Partition wall](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic05.jpg)
Partition wall exceeding 150mm in thickness erected between the balconies of two adjoining New Territories Exempted Houses.
![Canopy](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic06.jpg)
Canopy projecting from the external wall of the main building, except the green and amenity facilities allowed to be provided.
![Ground floor canopy](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic07.jpg)
Ground floor canopy with pillars.
![Metal supporting rack for air-conditioning unit](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic08.jpg)
Metal supporting rack for air-conditioning unit (with antidripping design) and lightweight air-conditioner hood projecting from the external wall of the main building, except the green and amenity facilities allowed to be provided.
![Signboard](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic09.jpg)
Signboard projecting from the external wall of the main building.
![Wall signboard](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic10.jpg)
Wall signboard mounted on the external wall of the main building, except the green and amenity facilities allowed to be provided.
![Signboard erected on the rooftop](../../../../images/safety-and-inspection/ubw/08nteh_lowrisk_pic11.jpg)
Signboard erected on the rooftop erected on the rooftop.