# Sustainability initiatives in Swedish real estate > Live situation record from CLSTR: https://clstr.news/situations/sustainability-initiatives-in-swedish-real-estate > Updated: 2026-09-28T04:32:22.000Z. Sources: 4. Developments: 2. Swedish real estate and hospitality entities are implementing various sustainability initiatives focused on energy efficiency and carbon reduction. In Lund, Wihlborgs achieved dual environmental certifications for its Beta 1–2 project at Ideon. By retaining an existing concrete frame rather than demolishing the structure, the project secured preliminary certification under Miljöbyggnad Ombyggnad 4.0 at the gold level and NollCO2 for renovation and extension projects. In Stockholm, Wallenstam issued 300 million SEK in green bonds to finance energy efficiency upgrades for the Sergelskrapan building, targeting a minimum 30 percent reduction in energy consumption. Additionally, the Stockholm Waterfront Congress Centre and the Radisson Blu Waterfront Hotel attained ‘Verified Net Zero’ status through TÜV Rheinland, utilizing solar panels and lake water for cooling to manage emissions. ## Timeline ### 2026-09-28: Stockholm entities advance sustainability through green bonds and net zero certification Wallenstam is using 300 million SEK in green bonds to renovate Stockholm's Sergelskrapan for energy efficiency, while Stockholm Waterfront achieves Verified Net Zero certification. 2 sources. https://clstr.news/cluster/stockholm-entities-advance-sustainability-through-green-bonds-and-net-zero-certification ### 2026-09-16: Wihlborgs achieves dual environmental certifications for Lund renovation Wihlborgs' Beta 1–2 project in Lund, Sweden, is the first in the country to receive dual environmental certifications for Miljöbyggnad Ombyggnad 4.0 and NollCO2 through sustainable renovation. 2 sources. https://clstr.news/cluster/wihlborgs-achieves-dual-environmental-certifications-for-lund-renovation --- Cite as: Sustainability initiatives in Swedish real estate. CLSTR, https://clstr.news/situations/sustainability-initiatives-in-swedish-real-estate