Real estate, buildings and infrastructure for the defence of Norway in peace, crisis and war.

Dronepilot (1)

Dronepilot (1)

Sikringskonferansen 2026

The Norwegian Defence Estates Agency welcome you to the Security Conference, Sikringskonferansen 2026. The world is changing – how do we address the challenges of the future?

Stemningsbilde av Akershusfestning på kveldstid.

Akershus fortress

Akershus Fortress is situated in the centre of Oslo, and with its beautiful green surroundings, it is a popular recreational area in the city. The fortress has been at the centre of the nation's growth and development for 700 years, and it is now very popular as a culture arena. At the fortress, you can experience a unique historical environment and enjoy stimulating cultural experiences.

Flyfoto Gamlebyen

Fredrikstad Fortress

The Norwegian Defence Estates Agency manages 15 national fortifications all over Norway. They welcome a total of 3,3 million visitors a year. Fredrikstad is situated in the south-eastern corner of Norway, at the mouth of the River Glomma. The Old Town is the oldest fortified town in Norway and in the Nordic countries, and one of the best-preserved fortress towns in Northern Europe.

Fredriksten by night

Fredriksten Fortress

Welcome to Fredriksten Fortress, a historic landmark and a popular destination in Halden. Here, you can explore the old buildings, learn about the fortress’s role in border defense over several centuries, and take part in concerts, festivals, and a variety of cultural events. The fortress grounds are open to all, offering scenic walking trails, panoramic viewpoints, and charming cafés and eateries where you can enjoy a coffee break or a good meal.

Festningen JPG

Kongsvinger Fortress

The Norwegian Defence Estates Agency manages 15 national fortifications all over Norway. They welcome a total of 4,4 million visitors a year. Kongsvinger Fortress is situated north-east of Oslo near the border with Sweden. The fortress towers high above the town and the river Glomma, and it is one of the most characteristic Baroque fortresses in Norway.

Donjonen i kveldssol 002

Kristiansten Fortress

The Norwegian Defence Estates Agency manages 15 national fortifications all over Norway. They welcome a total of 3.3 million visitors a year. Kristiansten Fortress is situated in Central Norway, in Norway's third biggest city, Trondheim.

Flyfoto Oscarsborg festning

Oscarsborg Fortress

Oscarsborg Fortress is situated on the Oslofjord and has had the important function of defending the seaward approach to the capital. With its strategic location on an island, Oscarsborg Fortress is a very popular tourist destination, with its own marina and great biological diversity.