michael adams wrote:

Judging from its present size, is it practical in your opinion, for
the OP to dig it up and move it from its present position, where it
will soon be blocking the window ?

I've known much larger ones successfully transplanted, although they
looked very sad for the first year. If it is carefully lifted with a
good sized root-ball, replanted into a well-prepared site and kept well
watered for the first summer, it should be fine. Spring is the ideal
time since root growth will be at maximum and new roots will be able to
occupy new ground quickly. Be prepared for significant leaf loss - the
plant will almost certainly try to reduce moisture loss by shedding a
good number of leaves. The trunk will remain leafless (the natural
state when nearing maturity), but the crown will fill out again and
normal growth will resume.