An Estonian manufacturer has completed one of the Baltic states’ largest modular housing export projects, delivering 80 underground concrete homes to a new resort in Finnish Lapland.
Kaamos Lodge, commissioned by Finnish tourism operator Explore the North, officially opened in December 2025. The resort is built entirely from prefabricated concrete modules produced by Revonia, a Harju County–based company with over a decade of experience specialising in vaulted cellars and cave-style saunas. The contract, signed in August 2024, was valued at approximately €6M, says the official press-release.
Each module measures 30 square metres, weighs 40 tonnes, and sits beneath up to a metre of soil. All 80 units were manufactured in Estonia, transported fully finished, and installed on-site — a process that takes a single day per unit. From initial concept through to installation, the full project took around 18 months.
All 80 underground concrete homes were manufactured in Estonia, transported fully finished, and installed on-site. Photo: Revonia
A new kind of resort
The resort’s design responds directly to its hillside setting. The homes are arranged in tiers so that the grass roof of each lower unit forms the ground surface for the one above, preserving valley views whilst maintaining privacy between guests — a practical solution that also minimises visual intrusion into the landscape.
In an interview with Estonian World, Revonia CEO Rauno Oja said the project reflects a broader shift in how resort developers think about investment. “Developers are no longer looking only for quick solutions; they are thinking about legacy — how to create a family business that lasts for generations,” he explained. “A concrete structure covered with soil also gives investors confidence that in 10 or 20 years the resort will still be structurally like new.”
Johan Väisänen, CEO of Explore the North and owner of Kaamos Lodge, described building 80 units simultaneously as a considerable risk, but said early feedback had validated the decision. “We chose Revonia’s solution from Estonia because we were looking for durability and low maintenance costs. For us, it is important to focus on hosting guests rather than constantly maintaining buildings.”
The contract between companies, signed in August 2024, was valued at approximately €6M. Photo: Revonia
As Estonian World notes, Lapland tourism has traditionally centred on timber chalets and glass-roofed cabins, making Kaamos Lodge a deliberate architectural departure. Concrete modules protected by earth are also less exposed to wind, heavy snowfall, and temperature fluctuations, factors of clear practical relevance in northern Finland’s climate.
For Revonia, the project marks its largest undertaking in Finland. In the space of modular projects, though, Estonia is already making an outsized impact — it’s number one exporter of prefabricated wooden houses in Europe.
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