Its empty homes and ageing residents mirror the wider fate of the ex-communist east German hinterlands since the country's reunification 27 years ago.
The anonymous buyer, who bid by telephone, scooped up the community that real estate auctioneers Karhausen had given a starting price of 125,000 euros or $148,000.
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In 2000, the hamlet was sold to private investors for one "symbolic Deutschmark," the pre-euro German currency.
The two brothers who were the original buyers of its dozen buildings, plus sheds and garages, did not manage to stop its slide into neglect.
Only about 20 mostly retired people still live in the cluster of decaying homes in rural Brandenburg state, 120 kilometres (75 miles) south of Berlin.
During World War II, the Hitler Youth trained around Alwine and prisoners of war were incarcerated nearby. Then the Iron Curtain went up and it became part of Germany's communist East.
Until Germany's 1990 reunification, all the property in Alwine, which once counted about 50 residents, was owned by a nearby coal briquette plant, the oldest in Europe. The plant closed in 1991 and many people left as the work dried up.
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Alwine is not the only such community in eastern Germany, which still lags behind the west in prosperity, wages and jobs with a per capita GDP that was only 67 per cent of that in western states in 2015.
Between 1990 and 2015, the eastern region's population fell by about 15 per cent, according to a government report this year.
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"After reunification, many people moved away for jobs," Hildegard Schroeteler-von Brandt, a professor of architecture and urban studies at Siegen University, said before the sale.
"These jobs have not been replaced everywhere in East Germany."
Andreas Claus, the mayor of Uebigau-Wahrenbrueck of which Alwine is a part, said: "People in economically underdeveloped areas feel left alone with their problems."
During the elections in September, nearly 23 per cent of Uebigau-Wahrenbrueck voted for the far-right Alternative for Germany party, nearly twice the national average.
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