施泰尔诺普城堡废墟丨瑞典丨Tengbom

Architects:Tengbom

Area:1000m²

Year:2022

Photographs:Felix Gerlach

Manufacturers:Unknown (Removed)

Category:Cultural Architecture,Renovation

Lead Team:Caroline Hahn Nilsson

Design Team:Ebbe Jensen, Martin Jakubowski, Thea Klitte, Rikke Hagedorf, Jenny Hennig, Jeppe Appelin, Simon Fast, Tarek El Ali, Hans Ahrland, Jonas Torle

Office Lead Architects:Erik Wikerstål, Wikerstål Arkitekter - Tengbom

Engineering & Consulting > Other:Tyréns and Balksten Byggnadsvård

Engineering & Consulting > Electrical:SWECO

General Contractor:Miljöbyggarna Entreprenad, Byggnadssmide i Mjölby, Planglasteknik, Nordéns Skyddsglas, Åby Fasad, Berland Tak, Bravida, Svenska Hantverksplåtslageriet, and Stjärnorps Skog & Trädgård

Client:Slottstornet

City:Linköping

Country:Sweden

Text description provided by the architects. West of Lake Roxen, just outside Linköping, stands the ruin of Stjärnorp Castle, originally built between 1654 and 1662, most likely designed by Nicodemus Tessin the Elder. The estate comprised a four-storey stone main building with a stair tower facing the park to the west, and two wings facing Lake Roxen to the east. The castle is depicted in Erik Dahlbergh's Suecia Antiqua et Hodierna from 1697.

A major fire in 1789 destroyed the main building and both wings. While the wings—one containing the castle chapel—were restored, the main building was left as a ruin and has remained exposed for over 230 years. During the 20th century, only minor stabilisation measures were carried out. Today, the ruin is a protected ancient monument.

In 2012, the Stjärnorp estate launched an architectural parallel commission to find ways to preserve the ruin while enabling limited access. Wikerstål Arkitekter, later acquired by Tengbom in 2017, was selected to develop and realise the proposal.

In recent years, a careful restoration has combined masonry conservation with restrained architectural additions. Externally, the aim was to maintain the impression of an untouched ruin. Internally, a protective roof structure has been added, supported at the original bearing points. Wall tops and window parapets have been capped with contoured sheet lead, and custom laminated glass panes have been installed in the window openings. New oak plank exterior doors have also been introduced.

The roof structure uses full-length beams sawn on site from timber sourced from the estate's forest. The collapsed central wall has been replaced by double beams supported by steel columns clad in timber for fire protection.

To improve accessibility, new staircases have been added. A self-supporting staircase in the great hall rests on steel columns between the cellar vaults, while an elliptical spiral staircase in the stair tower is suspended beneath a glass lantern. Both staircases are made of weathering steel with brass handrails. Access is provided by a new oak beam staircase, and a Baroque-style stone staircase is currently under construction at the courtyard entrance.

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