Complex sentence: When Ickenham obtained a railway station on the Metropolitan Railway's line between Harrow and Uxbridge, a great deal of residential development started in the village, and it gradually became part of the London commuter belt.
Split into simpler sentences: When Ickenham obtained a railway station on the Metropolitan Railway's line between Harrow and Uxbridge, it brought with it a rail link to London. A great deal of residential development commenced in the village and it gradually became part of the London commuter belt.