This looks very much like a stretch of the Castle Peak Road, possibly in the Yuen Long, Kam Tin area. I think that I have seen the wall with the advertising signs previouysly. Any suggestions?
Thanks to observations by tngan and terewong, and comparing this image and the one by Dennis Dung with Google Earth street view, it now seems much more likely that they were both taken in the San Hui area just to the north of Tuen Mun. I have inserteed a pin onto the map.