租房定金可以退吗？

昨天去看了一套房子一月1100  先付了500块的定金  他们中介还写了一张“租房定金收据”给我。现在由于一些个人原因不想租 定金能退回来吗

那收据上写着

兹收到```````````欲租厦门市```````区````````路` ````号  ```````````````单元，租房定金``````````元整。 预约签约时间```````````````````````````````
1.租金``````````````````元/月 押金```````````````````````
2.付款方式`````````````````````限期```````````````````````
3.基本设备`````````````````````
4.如果承租方在约定时间内未履行，出租方有权没收定金并把定金50%付给房产中介公司作为佣金。如果出租方在约定时间内不能将此房屋交付给承租方或违约不出租者，出租方应赔偿承租方双倍定金，承租方应将定金的50%付给房产中介公司作为佣金。三房同意请签名。