transfer for architectural engineering

i didnt get nearly as good a levels as i was hoping for and ended up doing architectural engineering at reading uni, which is obviously fine.
However, this means that i did not get into my dream uni of UCL for the structural design and architecture course.
I was wondering if it would be possible for me to transfer to UCL following first year, provided I try very hard and prove that i can do those bad a level results as they were nowhere near my predicted.
I am not keen on resitting, due to my four a levels being maths and the three sciences and induced a lot of stress (considering i have passed them), and do not have the financial ability to take a gap year and i know UCL are quite prestigious but i was just wondering how likely it would be for me transferring there for second year.
Please help! thank you