Avantor

Avantor functions as a master developer and long-term property manager in Norway. It acquires large, often derelict sites, master-plans entire districts, constructs residential and commercial buildings, and then retains and manages those assets through its in-house management arm. This integrated model captures development profits, rental income, and long-term asset appreciation, setting it apart from developers that build and sell individual projects.

Nydalen in Oslo is Avantor's signature project. Since the early 1990s, the firm has led the transformation of this former industrial area along the Akerselva river into a mixed-use urban district with housing, offices, commercial spaces, and public amenities. The firm uses Nydalen as a case study for its environmental strategy and its approach to large-scale, long-term neighborhood building.

Avantor is developing Kystbyen Slemmestad, a major expansion in Asker municipality outside Oslo. The project is planned for 1,300 residential units, along with new cultural and service amenities, aiming to form a new town center. Within Nydalen, the firm is actively selling Valseverket, a 152-unit condominium project. It also finalized a planning proposal for the Fabrikktomta sub-project in Slemmestad in March 2025.

While Avantor does sell some residential units and, as seen in a December 2025 deal, sub-areas to other developers like REBUS, its core model is a long-term hold. It manages over 330,000 square meters of completed property, retaining a large, active landlord and asset management role in the districts it builds, which provides recurring rental income from corporate tenants such as Elkjøp and ice.

Sustainability is central to Avantor's investment thesis, particularly in its Nydalen project where it implemented an environmental strategy from the outset. The firm focuses on brownfield redevelopment, transforming former industrial sites into dense, mixed-use, transit-accessible neighborhoods. Current projects also feature green roof gardens, and the firm links its own long-term returns to creating desirable and environmentally sound urban places.