Pollsters suggest, with some caution due to undecided voters and wintry weather, that the LDP and its coalition partner could secure 310 seats needed for a handy two-thirds majority.
Some have asked why they cannot be seized under laws meant to prevent homes standing empty or becoming uninhabitable, particularly in a city with a housing shortage.
Tensions have meanwhile remained high, with Pyongyang most recently outraged over South Korea's moves to develop nuclear submarine technology with the United States.