Complex sentence: Surrey Hills' Central Business District is relatively small, consisting of a 300 metre strip of shops along Union Road, which features Surrey Hills railway station (on the Belgrave and Lilydale railway lines).
Split into simpler sentences: Surrey Hills' Central Business District is relatively small, consisting of a 300 metre strip of shops along Union Road. The CBD features Surrey Hills railway station (on the Belgrave and Lilydale railway lines).