Aspenäs mansion, Manor house on Lake Aspen in Lerum Municipality, Sweden

Aspenäs mansion is a manor house beside Lake Aspen in Lerum Municipality with around 112 rooms and modern amenities, including a restaurant with lake views. The building has 12 conference rooms that can hold up to 240 people and offers facilities for various types of events and gatherings.

Aspenäs was a säteri (manor estate) in Lerum socken from the 16th century, held by the Lillie af Aspenäs family until the early 18th century. It later passed to Gothenburg magnates Anders Cederflycht, Nicolas and Jacob von Jacobson, and Samuel Bagge. In 1828 Johan Jacob von Holten bought it, demolished the dilapidated main building and completed a new one in 1834. The Tellander couple owned it from 1930 to 1958 and bequeathed it to Lerum Municipality; since 1967 it has operated as a hotel and conference centre.

The name Aspenäs combines the lake name Aspen with näs, meaning headland, for the estate on the north shore. The Lillie af Aspenäs family, who held it as a säteri from the 16th century into the 18th, took their surname from the estate.

Aspenäs mansion stands on the north shore of Lake Aspen in Lerum Municipality, roughly 20 minutes by car from central Gothenburg and Landvetter Airport. The estate has operated as a hotel and conference facility since 1967, so visitors should check with the hotel about access to the grounds and buildings before arriving.

The Tellander couple owned the manor from 1930 to 1958 and left it to Lerum Municipality in their will, which is how a former säteri became a municipal property and, from 1967, a hotel and conference centre.