Anton Wormann, 32, has always had a passion for DIY projects and creating beautiful spaces. So, after he discovered that his neighbor's property had been abandoned, he decided to purchase it and bring it back to life.

Upon inspection, Wormann discovered that the property had been vacant for about 10 years after its elderly owners passed away.

This property was one of the 9 million "akiyas" — empty houses — across Japan, according to official government data as of 2023.

While many countries face a housing shortage, Japan is seeing something starkly different — an oversupply problem.

From its bustling cities to its beautiful and lush countryside, these abandoned properties are scattered across Japan, and here's the kicker — they are going for as low as $10,000 a pop.

Japan's abandoned houses

Japan's unprecedented demographic crisis has led to millions of empty houses. The country's population continues to fall as its fertility rate sinks to a record low of 1.2 births per woman as of 2023.

Meanwhile, Japan's elderly population is growing rapidly with people aged 65 and over estimated to account for about 30% of the country's total population, according to 2024 data.

Death rates have surpassed birth rates in Japan, contributing to abandoned properties. Some people, like Wormann, have identified this trend as an opportunity to buy real estate for cheap, and try to save some beautiful Japanese architecture from being lost.

An 'akiya' discovery

Wormann, who grew up in Sweden and has lived in major cities such as Paris, London, Milan and New York for almost a decade, fell in love with Japan when he visited it in 2015 for a work trip.

Following that visit, Wormann made it a point to go back to the Asian country every year. "Every time I was about to leave, I just never felt that I was ready to leave," he said. He was in awe of the beautiful scenery, delicious food, and the culture in general.

"I really wanted to stay here and spend more time here. I really can't put words to it, but it just vibrated with me." So, in October 2018, he took the leap of faith and moved to Japan.

Once he became more acquainted with the Japanese culture and language, Wormann discovered a big opportunity in purchasing "akiyas," renovating them, and turning them into beautiful short-term rental properties.

"I kind of read some articles about it ... and it fascinated me, but I never really understood how big of a problem, and also for me, how big of an opportunity it was until I actually moved here, learned Japanese and got integrated into society," he said.

Wormann as a kid would explore ideas with his father on renovating old houses they came across, and was always interested in such projects. Before discovering his neighbor's house, he already had experience renovating multiple properties in Sweden and Japan.

"Making something beautiful takes time ... and it becomes something that no one else can replicate," he said. "Like to create something really, really good that you're very proud of — it just makes me very happy."

The renovation process

After discovering the empty property next door, Wormann was able to get in contact with the owner's children with the help of a neighbor.

Wormann bought the 86-year-old property for about 8 million yen (about $54,000), excluding closing costs and fees, according to documents reviewed by CNBC Make It.

The property still had belongings of its previous residents, a common occurrence among abandoned properties in Japan. The house was infested with termites and needed major structural upgrades.

"I was definitely intimidated ... and I've only seen it from outside, so I could have only imagined what it looked like from the inside," he said. "I expected it to be clean, empty [and] pretty tiny, but that wasn't the case."

"There were a lot of uncertainties, but I loved the location, I loved the sunlight, I loved the size, and there's nothing you can't really fix if you have these things in place," he said.

It took Wormann 15 months to renovate the property.

"Renovating in Tokyo, the pieces of land are so narrow, so like you have to demolish one piece and then throw away as you go, because if not, the renovation won't move forward," he said.

"So demolish, rent a car, take it to the dump, get back," and it was this rinse and repeat that needed to keep happening throughout the entire months-long process.

The design choices for the home "came over time," he said. "You feel where and how you want things to be done. You feel the sunlight. You feel the space ... What can you save from the original details?"

"All these small choices [came] from spending 1000s of hours in that house," he said.

Wormann spent a total of about 1,500 hours working on the house over the span of about a year. "It occupied my mind. I lived for that house for a year," he said, and in total, he says he spent another 8 million yen (about $54,000) on the renovation.

In total, it cost about $110,000 to purchase and renovate the property. It has now become a popular among tourists visiting Tokyo and goes for about $500 a night on Airbnb. Each month, it brings in about $11,000 in rental revenue, according to documents reviewed by CNBC Make It.

Passion project turned business

What started for Wormann as a passion project is now turning into a viable business. The 32-year-old now owns eight properties in Japan, seven of which were once abandoned houses. He has completed renovations on three of the properties and is currently working on renovating four more.

With lots of love and effort, these abandoned homes which may be seen as "old" and dilapidated by some, can be revived and turned into something beautiful once again, Wormann said.

"There are dying villages [in Japan] ... I think, from a cultural perspective, there are a lot of beautiful houses that are going to waste."

"There are a lot of things that used to thrive, maybe 30, 35, 40 years ago, that are now being abandoned and being forgotten and it's, it's fascinating, but it's also kind of sad," he said. "But you can save them, you can salvage them," he said.

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