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Berkshire Hathaway has raised its stake in a homebuilder described as a 'ramshackle' turnaround play, signaling continued interest from Warren Buffett's conglomerate in housing-related investments. The move is part of Berkshire's ongoing portfolio adjustments disclosed in recent regulatory filings. The increased stake draws attention given Berkshire's reputation for value-oriented, long-term investments and could be seen as a bullish signal on the housing sector's prospects.