Opted to rebuild the station (5)
I believe the answer is:
depot
'the station' is the definition.
(depot is a kind of station)
'opted to rebuild' is the wordplay.
'to rebuild' indicates an anagram (I've seen 'rebuilding' mean this).
'opted' is an anagram of 'DEPOT'.
(Other definitions for depot that I've seen before include "Opted (anag)" , "Bus station or warehouse" , "Toped (anag.)" , "Terminus for transport vehicles" , "(Military) store" .)