This apartment is convenient, but if I were to wish for more, I'd like it to be a bit closer to the station.
Standard kanji-kana spelling for this fixed expression.
Kana spelling of the first part; less common but still used.
From 欲 (greed, desire) + を (object marker) + 言う (to say) + と (conditional). Literally 'if one speaks of desires', it has become a set phrase meaning 'ideally' or 'if I could ask for more'.