We have a post mounted charger fitted alongside the drive as there was no easy way to fit one to a wall and still get the cable to reach the car easily without tripping over the thing. I just got the post fabricated up by a bloke I knew gave him a sketch and he welded up some square steel box with a plate to fit the charger and had it powder coated. I also added a small solar powered light to the top of this post and that has made a world of difference as it gives enough light to be able to see to plug the car in at night.
If getting a post made up then getting one made with a place to fit a motion triggered light would be worth thinking about as it really is a useful thing to have in the winter. I probably got mates rates for the post but the cost of the thing including the powder coating was about €60. I put the thing in the ground ready for the electrician and just put a piece of flexible cable duct and draw cord in the hole and trench leading to it from the garage with the duct coming up through the postcrete I used to fix it in place. All the electrican then had to do was pull the cable through and up the inside of the steel post so there is no sign of the cable at all which looks neater.