Complex sentence: The family lived in four successive houses in Huddersfield, moving partly because the family expanded from four to six, and finally into a 1930s detached house in a relatively prosperous area near the town centre.
Split into simpler sentences: The family lived in four houses in Huddersfield successively, and they moved partly because the family expanded from four to six. They finally moved into a 1930s detached house in a relatively prosperous area near the town centre.