Originally Posted by
Aviatrix
There is no law against it. But what could happen is that a local resident will report your car as an abandoned car... then the local council will put a notice on it inviting you to either move it or contact them within so many days (seven or fourteen)... and if you don't they will take it away.
People who live near airports and train stations are quite sensitive to having "their" parking spaces taken over by rail/air travellers, and WILL resort to tactics such as reporting cars as abandoned. You're probably OK to leave your car in a residential area for a day or two. I wouldn't risk leaving it for more than that.
What you can do is e-mail the relevant council before you go. It's entirely possible that they will ignore it and go ahead with towing the car (although, assuming your car is taxed, I'd say it's bloody unlikely they'll move it within a month of you parking it there), but then you'll be able to point back to it and demand they release it back to you FOC.