The former headquarters of Oslo Lysverker, located at Solli plass, is an iconic example of Norwegian Neoclassical architecture transitioning into Art Deco. Designed by architects Andreas Bjercke and Georg Eliassen and completed in 1932, the massive brick building was built to house the city’s municipal electric company. The structure is renowned for its elaborate craftsmanship, featuring decorative stone reliefs and an interior adorned with significant artworks, most notably the large-scale frescoes by Per Krohg in the former expedition hall. After serving as an office building for decades, the landmark underwent an extensive restoration and reopened in 2022 as “Sommerro,” a luxury hotel and cultural hub. This transformation has preserved the building’s historic character—including the original public baths (Vestkantbadet)—while repurposing the grand spaces for modern hospitality, dining, and entertainment.