Real Estate for the head – and the heart. A vision to become the country’s leading urban developer.
The real estate operations are conducted through RASMUSSENGRUPPEN AS’s wholly owned subsidiary AVANTOR AS and its subsidiaries (hereinafter referred to as Avantor), which has extensive experience in residential development as well as the development, ownership, and management of commercial properties. For many years, Avantor has focused particularly on further developing Nydalen in Oslo as a vibrant urban center with environmentally friendly solutions.
As of December 31, 2024, Avantor owns approximately 270,000 square meters of commercial property and manages approximately 330,000 square meters. The developed property portfolio is primarily located in Nydalen, Oslo.
Avantor also owns 100% of the shares in Avantor Slemmestad AS (AS). AS owns significant land areas in Slemmestad in Asker Municipality, where a transformation from an industrial area to an attractive coastal town in the inner Oslofjord is planned. The area plan for Slemmestad allows for the development of approximately 1,300 apartments and about 55,000 square meters of gross floor area for commercial use. Around one-third of the development potential in Slemmestad has detailed zoning approval. In February 2025, presales began for the first apartments in the Vaterlandskvartalet 1 project.
In addition, the company owns an unregulated development plot in Tønsberg and a regulated plot in Kristiansand.
Sustainability
Avantor Group’s development portfolio has a total development potential of approximately 230,000 square meters, mainly in Nydalen, in addition to the aforementioned potential in Slemmestad.
Environmental focus has been central ever since Avantor began the development of Nydalen in the early 1990s. Sustainability is an ongoing project with continuously increasing ambitions and constitutes a core part of the company’s real estate development. Avantor was the first private real estate company in Norway to be environmentally certified under ISO 14001 and is a key player in the Green Building Alliance. In 2023, Avantor developed a new environmental strategy for 2024-2026, which also includes social responsibility and corporate governance. The strategy focuses on material sustainability goals that Avantor can have the greatest impact to, based on a double materiality analysis.