Sankt Petri Passage (literally St Peter's Passageway) is a passageway and surrounding mixed-use complex linking Nørregade with Larslejsstræde in central Copenhagen, Denmark. The National Romantic complex was built for the telephone company KTAS (now TDC) in the 1900s and is also known as Telefonhuset ("The Telephone House"). The new name refers toneighbouring St Petri's Church. Current tenants include KVUC as well as several Danish and international companies.
KTAS was first based in the Jorcks Passage complex. The company acquired the site in Nørregade from 1899 and the architect Fritz Koch was selected for the task of designing a new headquarters. Construction began in 1900 but progressed slowly due to financial difficulties. and 1909. Jens Ingwersen took over the project following Koch's death in 1906 and the complex was finally inaugurated in 1909. It was later expanded between 1917 and 1938, both with the incorporation of the existing properties at Nørregade 27 and 29 and with new buildings designed by Ingwersen on Larslejsstræde (No. 4–6) and Nørre Voldgade (No. 38) on the other side of the block. The complex xontained both company headquarters, workshops and telephone main central.
KTAS Pensionskasse (KRAS pension fund), the owner of the office complex, sold it to Carlyle Group in 2007 in anticipation of TDC's move to a new headquarters at Teglholmen in 2009. The building complex was subsequently put through a comprehensive refurbishment undertaken by Revco Property Developmentand renamed Sankt Petri Petri Passage with a reference to neighbouring St Petri's Church. Snakt Petri Passage was sold to Industriens Pension in January 2015.
The office complex comprises 14 buildings with a total floor area of approzimately 45,000 square metres. It is built in red brick on a high granite plinth in a National Romantic style with many decorative details. The inner courtyard features some 40 portrait reliefs.