RUSUTSU, Japan — As a Japanese couple teed off on a sweltering summer morning here in Rusutsu, a mountainous village in northern Japan, construction workers were building a new luxury condominium complex overlooking the fairways and ski slopes in the distance.

When it opens in December 2020, the 10-story complex, the Vale Rusutsu, will have 156 units at prices from $656,050 for single bedrooms to about $5.2 million for elaborate penthouses. That’s an eye-popping amount for Hokkaido, Japan’s sparsely populated northernmost main island, but the developer, Kamori Kanko, is banking on a growing crop of investors, as well as ski and golf enthusiasts, from Asia to make the $131 million project profitable. So far, it has sold 83 units, the company said.

“We have one of the largest golf courses in Japan, with mild summer temperatures averaging about 19 degrees Celsius (66 degrees Fahrenheit),” said Toshimune Suto, a real estate sales manager at Kamori Kanko. Its Rusutsu Resort was designed as an all-season playground near the slopes of Mount Yotei, a 6,225-foot volcano dominating this part of Hokkaido, about 800 kilometers, or 500 miles, from Tokyo.

In addition to 37 ski runs with more than 40 feet, or 12 meters, of snowfall per season, the resort has an amusement park, pools, rafting, hot air balloons and four 18-hole golf courses, including one designed by Masashi Ozaki, known as Jumbo, one of Japan’s most famous golfers.