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Local presence

Castellum’s ambition is to be a market leader in the Nordic capitals and attractive growth regions in Sweden, Denmark and Finland. Operations are carried out in geographic regions with own property management in the local markets. Local know-how and proximity to the tenants are key for meeting tenants’ demands and facilitating efficient property management. Moreover, through its associated company Entra ASA, Castellum owns one third of Entra’s property portfolio of high-quality commercial properties primarily in central Oslo.

The operations comprise three different areas

Property management

Through customer-centric property management built on good business conduct, sustainability and innovation, we enable our tenants to reach their business goals.

Project development

Castellum will continually invest in existing portfolios and develop new portfolios, resulting in a quality shift to a more sustainable and stable portfolio, as well as increased earning power. In addition, Castellum will be an active player that promotes urban development and growth.


Continual development of the property portfolio in order to strengthen Castellum’s position as the leading player in attractive Nordic growth regions.

We are found in attractive Nordic growth regions

Castellum owns office and logistics spaces in attractive Nordic growth regions. The properties’ locations vary from city centre locations to well-situated business districts with good transport links and services. We work with a long-term perspective and our strategy for growth includes continually refining and developing our property portfolio by investing in new construction, extensions and reconstructions, as well as making acquisitions. The purpose of the investments is to improve cash flow, thereby increasing the value of the properties. New projects are gradually added through acquisitions of both development properties and unutilised building rights.

Focus on sustainable development

Our role as urban developer promotes the construction of Europe’s greenest cities while offering our customers and their employees the opportunity to make use of the possibilities of digitalisation and how it supports a good work-life balance. An important part of Castellum’s work as an urban developer is promoting long-term, sustainable urban development in various ways. Sustainable urban development means development with a focus on sustainability, health, and integration, which in turn means developing both new and existing areas.

Vision image of Söderhov in Stockholm with Globen in the background.
Person standing with a bike with the Castellum logo.
Two people talking to each other sitting by a table.
A person sitting in a sofa with a laptop.