A Private Mansion Built in the Parisian Style, Sold in Complete Discretion in Aachen

<p>A property sale can sometimes tell more than a transaction. In Aachen, Germany, a 17th-century private mansion has just been listed <a href="https://fr.euronews.com/my-europe/2026/08/25/un-palais-historique-daix-la-chapelle-ou-sejourna-napoleon-mis-en-vente" title="A historic palace in Aachen, where Napoleon once stayed, put up for sale &ndash; Euronews">in complete discretion, through Sotheby&rsquo;s International Realty</a>. Listed as a historic monument, the house has stayed in the same family for 165 years and once welcomed Napoleon Bonaparte in person, in 1804. One detail stands out: the house was built, as early as 1669, on the model of the aristocratic Parisian townhouse. Even more than 400 kilometres from Paris, the language of heritage remains the same &ndash; <strong>Paris Ouest Sotheby&rsquo;s International Realty</strong> recognises, in this sale, the very codes it applies daily to private mansions across western Paris.</p>

<h2>A confidential sale in the heart of the city</h2>
<p>Located on Jakobstra&szlig;e, steps from Aachen&rsquo;s cathedral and town hall, the property now comprises three residential units totalling 35 rooms, including 20 bedrooms, across some 1,500 m&sup2; of living space, set within a park of nearly 2,500 m&sup2; in the city centre. The seller has chosen not to disclose the price or further details. The broker handling the sale confirmed that, at the owners&rsquo; request, no additional information could be shared. Only genuinely committed buyers are, at this stage, granted a viewing.</p>

<h2>A private mansion built on the Parisian model</h2>
<p>The house dates back to 1669, when forestry official and repeated mayor Johann Bertram von Wylre had it built as a three-wing complex around a courtyard, explicitly modelled on the aristocratic Parisian townhouse. In the mid-18th century, future mayor Caspar Joseph von Clotz had the facade remodelled in the style of Aachen architect Johann Joseph Couven, a look still visible today.</p>

<h2>The room where Napoleon was received</h2>
<p>In 1798, cloth merchant Edmund Joseph Kelleter acquired the house and had it decorated in the Empire style. In 1804, he personally received Emperor Napoleon Bonaparte there. The so-called &ldquo;Napoleon room&rdquo;, with its complete Empire decor, the three-flight staircase behind the entrance, several period fireplaces, panelling, stucco and original wallpaper are all still preserved today. Four years later, during the 1818 Congress of Aachen, the Emperor of Austria and the King of Prussia also visited the cloth manufactory installed on the estate.</p>

<h2>165 years in the same family, up to Aachen&rsquo;s town hall</h2>
<p>After several 19th-century owners, industrialist Eduard Alexander Heusch acquired the entire site in 1861 to install his carding factory, the oldest of its kind in Aachen at the time. The house has remained with the Heusch family ever since, still referred to locally as the &ldquo;Heusch palace&rdquo;. One member of the family, Hermann Heusch, served as mayor of Aachen from 1952 to 1973, playing a decisive role in the city&rsquo;s post-war reconstruction.</p>

<h2>What this sale reveals about the codes of the Sotheby&rsquo;s International Realty network</h2>
<p>Founded in 1976 as an affiliate of the Sotheby&rsquo;s auction house, itself founded in 1744, the Sotheby&rsquo;s International Realty network now counts more than 1,100 offices across 86 countries, with close to 26,000 advisors. This sale illustrates a constant across the network, whatever the city: for a rare heritage property, discretion always comes before broad distribution. No public bidding, no visible signage, access reserved for qualified buyers. These are precisely the codes <strong>Paris Ouest Sotheby&rsquo;s International Realty</strong> applies to private mansions in Paris.</p>

<h2>The same codes applied to private mansions in western Paris</h2>
<p>In the 16th arrondissement, Neuilly-sur-Seine or Boulogne-Billancourt, a private mansion is never just another unit within a shared building: it is an autonomous asset, with its own independence, its garden, sometimes its own history. As in Aachen, this type of property rarely follows conventional sales channels: a confidential address, selective viewings, distribution reserved for a qualified international network rather than a public shopfront.</p>

<h2>Free Property Valuation in Western Paris with Paris Ouest Sotheby&rsquo;s International Realty</h2>
<p>Do you own a private mansion, a manor house or a heritage property in the 16th, the 17th, Neuilly-sur-Seine or Boulogne-Billancourt? Paris Ouest Sotheby&rsquo;s International Realty handles this type of sale with the same standard of confidentiality. Contact our team on <strong>+33 1 46 22 27 27</strong> or request a <a href="https://www.parisouest-sothebysrealty.com/en/property-valuation-paris/" title="Request a free property valuation from Paris Ouest Sotheby's International Realty">free property valuation</a> online.</p>

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<h2>FAQ &ndash; Confidential Sales and Private Mansions</h2>

<h3>What is the Heusch palace, put up for sale in Aachen?</h3>
<p>The Heusch palace, or Wylre house, is a 17th-century private mansion located on Jakobstra&szlig;e in Aachen. Listed as a historic monument, it totals around 1,500 m&sup2; across three units, 35 rooms including 20 bedrooms, and a park of nearly 2,500 m&sup2;. It has been marketed by Sotheby&rsquo;s International Realty since 2026.</p>

<h3>Why has this sale remained confidential?</h3>
<p>The owners, the same family for 165 years, chose not to disclose either the price or the details of the transaction. This approach matches the practice of the Sotheby&rsquo;s International Realty network for rare heritage properties: targeted distribution, viewings reserved for qualified buyers, no public advertising.</p>

<h3>What is the link between this house and Parisian architecture?</h3>
<p>Built in 1669, the house was designed on the model of the aristocratic Parisian townhouse, with a three-wing complex around a courtyard, typical of private mansions in the French capital at the time. This architectural link is a reminder that the vocabulary of the private mansion extends well beyond Paris.</p>

<h3>Why is Napoleon associated with this house?</h3>
<p>In 1804, Emperor Napoleon Bonaparte was received in the house by its then owner, cloth merchant Edmund Joseph Kelleter. The so-called Napoleon room, decorated in the Empire style for the occasion, is still preserved today, with its period furniture and panelling.</p>

<h3>How does this type of sale compare with private mansions in western Paris?</h3>
<p>As in Aachen, private mansions in the 16th arrondissement, Neuilly-sur-Seine or Boulogne-Billancourt rarely sell through conventional public channels. Their independence, the absence of shared ownership and their rarity call for selective marketing, carried by an international network rather than a simple listing.</p>

<h3>How is a private mansion or heritage property valued in Paris?</h3>
<p>Valuing a heritage property depends on its independence, its architectural history, its proportions and its garden, far more than a neighbourhood&rsquo;s average price per square metre. Paris Ouest Sotheby&rsquo;s International Realty offers a free, confidential valuation tailored to rare properties in western Paris.</p>