You have to check you have permission to take images at the location and if it will be open on the day of the shoot. Try to find a number somewhere or contact your local council.
You also need to look around and see how busy it is. Will you be able to take images without anyone else been in the background? some days maybe busier than others.
Light is very important when looking for a good location will you be relying on natural daylight or do you need to bring flash equipment or a reflector?
You need to look at the whole picture do you want everything in the frame? is there something that may distract you from the focal viewpoint (the point of interest )