I have received an offer from KCL months ago but did not receive a response from UCL. Does anyone know how long it usually takes?

I think it would depend on the time when you applied. Some of my friends who applied in March and thereafter have been informed by the admissions office that they are bogged down with applications and that is causing the delay in replying to the applicants. Hope this helps.

Yes. I guess I will just have to wait. Thanks.

Actually, I just called the school and was informed that my offer was sent out. I am definitely going. YAY!!!!