As you may notice Dubai experienced a slow in 1H of 2016. This happens because developers slowing the pace of project completions and handovers due to the forecasted oversupply of residential properties in the market, which prompted a slight decrease of around 2% and 1% respectively on rental rates for apartments and villas.
The second reason is the cumulative effect of oil prices decrease that slows the development and interest of the real estate market. Nevertheless, the prices are far more stable than many of analytics predicts.
Here the example of comparison on rental prices in Dubai districts for the first half of 2016.