Riviera has huge potential to grow. Because current price is extreamly low even they have concreat plan to become center of Perl River Delta new economic zone with direct connection by Hong Kong Macau bridge.

Hong Kong and Macau are great cities in the world. Their land is very limited. They are top #1 and #2 high density area in the world. As you know economy of Hong Kong and Macau is also world class. Property price of them is also world class,  price per sq. meter is HKD35,000(USD4,500) in Macau and HKD60,000(USD7,700) in Hong Kong..

China is different from Hong Kong and Macau. Even their GDP almost exceed Japan and Germany, their population is huge, 1.3 billion. They are still under development country. Of course, property price is much cheaper. Guandong province is one of the most developped province in China, their average price is only RMB9000 which is only USD1,300.

Zhuhai is cheaper than average Guandong. Unlike other cities such as Shenzhen affected by Hong Kong economy, Zhuhai property price started to rise very recently because Macau stated to grow in 2005 after they installed first American casino, Sands. Average propety price of Zhuhai is RMB7,638 which is USD1,100 per sq. meters. 

Because west part of Zhuhai, Doumen where Riviera locate, is newly development area, property price is cheaper than east area. Price of Riviera is only RMB4,120/sq. meter which is USD600 /sq. meter. If you consider future growth, cheap in current price means great potential to invest.