A Danish homeowner uncovered a massive underground shelter from World War II beneath his garden in Strib, transforming the concrete bunker into a unique space for wine, exercise, and relaxation.
A Hidden Wartime Relic Beneath a Family Garden
When Frank Hansen and his wife bought a plot of land in Strib on western Funen in 2015, they envisioned building their dream home above ground, not beneath it. But as construction progressed, they discovered something entirely unexpected hiding below the surface—a round, six-meter-wide underground shelter built by German forces during World War II.
The concrete structure has 40-centimeter-thick walls and sits half a meter below ground level, topped by a small observation post. At first glance it resembles a large gray igloo. Over time Hansen has transformed the cold, echoing bunker into a fully usable space with furniture, lighting, and a surprising amount of character.
Rediscovering History Underfoot
The shelter was built by occupying German troops during the war as part of coastal defense efforts to monitor and guard the Little Belt Strait. The area today is a peaceful neighborhood, but remnants like these still reflect the heavy presence of wartime structures scattered across Danish soil. Many of them mirror the military fortifications seen in other Danish strongholds such as Hammershus on Bornholm that once served as both a fortress and lookout.
Frank Hansen says the shelter was not even mentioned in the property listing. Only later did the former owner explain that it could easily be removed if desired. Instead of demolishing it, Hansen decided to preserve and repurpose it, seeing potential where most might view a burden.
Renovation and Reinvention
A narrow concrete staircase hidden under a small door in the garden leads three meters underground into the circular room. Inside the space today stands an antique dining table surrounded by chairs, soft carpets, candles, and even a rowing machine. Shelves hold bottles of red wine and glasses, giving the underground bunker an inviting atmosphere far removed from its military origins.
By 2018, the family’s new villa and the refurbished shelter were both complete. Hansen primarily viewed the project as a personal curiosity rather than serious protection. The blend of modern comfort and old-world concrete gives the place a strangely appealing charm.
Prepared but Not Fortified
In recent years, as global tensions have occasionally escalated, the novelty of owning an old shelter has taken on a new layer of meaning. Neighbors sometimes ask if they can take refuge there during a crisis. Hansen always responds with humor, saying everyone’s welcome because there is plenty of wine stored below.
However, he recently replaced the original pressure-sealed iron door with a regular doorstep entrance and added a skylight to bring natural light into the room. That modification made the bunker more livable but no longer airtight or blast-resistant. If a real emergency were to occur, Hansen insists he would rely on one of Denmark’s official civil defense shelters managed by local authorities.
Old Concrete Meets Modern Life
Structures like Hansen’s shelter are a fascinating glimpse into how Denmark continues to interact with layers of its past. What started as a relic of war has now become a quiet domestic retreat. In the end, it serves not as a reminder of fear, but of adaptation—how the same walls once meant to protect against destruction can now host laughter, fitness sessions, and glasses of wine.
Sources and References
The Danish Dream: Hammershus – Denmark’s Largest Medieval Fortress
The Danish Dream: Best Home Insurance in Denmark for Foreigners
TV2: Se billederne – fynbo har kæmpe beskyttelsesrum under haven
