Ljunglöfska slottet, Summer residence castle in Bromma, Sweden

Ljunglöfska slottet is a four-storey villa built 1890–1893 to designs by architect Gustaf Lindgren, standing by Lake Mälaren on Ljunglöfsvägen 1 in Blackeberg, Bromma. Its historicist neo-baroque and neo-renaissance facade, also called 1890s renaissance, carries ornaments in natural stone. The family's bedrooms were on the second floor, guest rooms and attic on the third. It now serves as a party and conference venue.

The building was completed in 1893 to designs by architect Gustaf Lindgren, commissioned by tobacco merchant Knut Ljunglöf. King Oscar II attended the opening celebration, marking the height of the family's social rise.

The name of the house comes directly from the tobacco merchant who had it built, tying the building to a specific moment of industrial wealth in Sweden. Inside, the decorated rooms still carry traces of how a prosperous family of that era chose to present themselves to guests.

The grounds along the Mälaren shore are easy to walk, with paths leading through the park down to the water. Access to the interior is generally tied to booked events, so it is worth checking in advance whether open visits are available.

The viewing tower southwest of the villa was later nicknamed the punsch or grogg tower, but it was built for the view: its salon, seven metres across, had a checkered marble floor and a sofa curving halfway around the wall. On Sunday evenings visitors used binoculars to watch the busy steamers, schooners and motorboats on Mälaren. Only the foundation, now fitted with seats, remains.