On 2010-1-29, an old building at 45j ma tau wai road collapsed causing 4 dead and 2 injured. It was located directly opposite the San Wai street.
Following two picures show the scene just after the collapse
Google map street view in 2009 before the collapse
Google map street view in 2011 after the collapse
1955-4 picture showing that row of old buildings on ma tau wai road. Bottom of picture is Chatham rd north.
Top of the picture is ma tau wai rd showing those old buildings. Street on the right is Pak Kung St.
Street on the left is San Wai st. The one at the san wai-ma tau wai junction was the 45j building which collapsed in 2010. Apparently the left wing of 45j was still under construction.