E1, E2 or E3 won't be a good buy for own stay cause it is too close to the LRT/MRT station and I can guarantee no windows on earth could reduce the noise to a livable standard.

Better just go buy second hand Lot 15 if you want a decent apartment at SS16 area or just wait for the next project near the round about. You lose all the benefit of walking distance to all the amenities but it sure as hell beats living in a super noisy apartment.