This 900-Year-Old Castle Is the Priciest Home Ever Listed for Sale in Luxembourg
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This 900-Year-Old Castle Is the Priciest Home Ever Listed for Sale in Luxembourg

Château d’Ansembourg and the adjacent Domaine du Presbytère d’Ansembourg are on the market for €37.5 Million 

By Liz Lucking
Fri, Jun 12, 2026 12:11pmGrey Clock < 1 min
An almost 900-year-old castle in Luxembourg has hit the market for €37.5 million (US$43.3 million), making it the most expensive residential property ever offered for sale in the small European country.

The listing comprises the ancient Château d’Ansembourg and the adjacent Domaine du Presbytère d’Ansembourg, which are within central Luxembourg’s Valley of the Seven Castles.

Château d’Ansembourg is one of the seven castles the valley is named for and is regarded as one of the country’s most important privately owned châteaus, according to Ignace Meuwissen, the founder of Whisper Auctions, who is handling the sale.

The castle sits at the heart of an almost 500-acre estate overlooking the picturesque village of Ansembourg, and records of its existence date to 1135.

Domaine du Presbytère d’Ansembourg, meanwhile, is a more than 110-acre estate comprising a former presbytery, a chapel dating to 1678, a historic school site, forests and meadows.

“Properties of this calibre rarely become available,” Meuwissen said.

“What is being offered today is far more than a chateau. The combination of nearly nine centuries of documented history, 245 hectares of land and a unique location in the Valley of the Seven Castles creates an opportunity that is exceptionally rare within Europe. Opportunities of this scale and heritage value are seldom brought to market and are often preserved within families for generations.”

The properties are being marketed through a “semi-off-market sales process,” with limited information and marketing materials publicly available, and access to the properties is reserved for a small number of pre-qualified candidates, according to Meuwissen.

Both estates have been privately occupied by the same owner, whom Meuwissen declined to identify. Mansion Global could not confirm who the seller is.



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Brickworks has enlisted acclaimed architecture studio Kennedy Nolan to explore how homes could become more adaptable, energy-efficient and connected to community.

By Jeni O'Dowd
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Australia’s housing debate is often dominated by affordability and supply, but a new collaboration between Brickworks and acclaimed architecture firm Kennedy Nolan argues the conversation should also focus on the quality and longevity of the homes being built.

The project, titled Our Next Neighbourhood, examines how suburban housing could evolve in response to shrinking block sizes, rising energy costs, increasing density and changing family structures.

Rather than proposing luxury dream homes, the initiative focuses on what its creators describe as achievable suburban housing models that are more flexible, sustainable, and better suited to modern Australian life.

Brickworks commissioned Kennedy Nolan to investigate what suburban housing might look like if “design, long-term liveability and enduring materials were placed at the centre of the conversation”.

The result is two housing concepts, known as the Street Terrace and Canopy Terrace, which explore higher-density living while maintaining access to green space, natural light and privacy.

The designs incorporate adaptable floorplans that can evolve as family needs change, along with passive design principles intended to reduce reliance on mechanical heating and cooling.

Brett Ward, General Manager of Marketing at Brickworks, said the company wanted to broaden the discussion around housing beyond simply increasing supply.

“Much of the housing conversation today is understandably focused on supply and affordability, but there is an equally important discussion to be had about the quality and longevity of the homes we build,” he said.

“We wanted to explore how thoughtful design, combined with durable, resilient materials, could create homes that not only function well today, but continue to support Australian families and communities long into the future.”

Kennedy Nolan said the project was partly inspired by concerns that contemporary housing often struggles to adapt to changing household structures and environmental pressures.

The architects said innovation in suburban housing was “essential” to address changing family groupings, energy use, urban heat island effects and growing disconnection from place.

According to the design team, the concepts draw on lessons from some of Australia’s most influential housing projects while seeking to create neighbourhoods with stronger links to landscape, community and local identity.

Rachel Nolan, founder of Kennedy Nolan, said the practice saw an opportunity to reimagine suburban housing as something “more connected to our climate, our landscape, our communities and our Australian identity”.

The project comes as policymakers, developers and planners continue searching for ways to deliver more housing without sacrificing liveability, neighbourhood character or long-term sustainability.

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