What A levels to take for Architecture and corresponding schools

Hey guys! I am currently in a pretty good UK girls school and I am going onto Year 11 this coming Summer. I am a full boarder and I was wondering if there is anyone here who could give advice on what I should take for my A levels. So far I have been thinking of Art, Maths and Physics and I would prefer to take a fourth subject. I am porbably going to study Architecture in uni so any thoughts on this fourth subject? I am torn between DT and Further Maths. I have no previous experience in DT (I didn't take this at GCSE) and I do FSMQ Maths and higher GCSE Maths. I do pretty well in Maths and FSMQ and I enjoy doing Maths like those in UKMT and Kangaroo. I heard that Further Maths is extremely difficult and demanding so I am not sure I could balance my other three subjects (especially Art!) with FM.
Also any ideas on what schools offer DT at A levels?
Thank you so so much. I have been in despair with this problem.