TOKYO -- A new bullet train line and the prospect of further extensions of Japan's ultrahigh-speed rail network have created pockets of robust growth in property markets beyond the capital. A property near Nagoya Station logged the biggest gain of any commercial site in the nation's latest official land price survey, jumping more than 40% in the year to July 1. Several high-rises are going up in the neighborhood, including a rebuilt Dainagoya Building, a local landmark. A magnetic-levitation train line connecting Nagoya with Tokyo, slated to open in 2027, will only add to the station's appeal. With some local manufacturers relocating their offices close to the hub, demand for area real estate is holding up well, says the head of Sanko Estate's local agency. The survey also shows an unmistakable impact on land prices from the Hokuriku Shinkansen, the country's newest bullet train line. Open since March, it connects Tok...