Kjøper søsterens Frogner-villa for 90 mill.

Aino Olaisen, a wealthy real estate investor, has purchased her sister Maria Olaisen's property in Frogner, Oslo, for an impressive 90 million kroner, according to a recent report. The property, located at Gyldenløves gate 49A and 49B, is situated right at the entrance to Vigelandsparken, with a villa spanning around 600 square meters and a plot of approximately one acre.

Maria Olaisen purchased the property for 74 million kroner in June 2025, based on property data from Lytix. The land is situated between the high-profile properties of former Supreme Court judge Therese Steen and Bahr-partners Thomas Svensen, who bought it for 64.5 million kroner in September of the previous year. Earlier this month, it was reported that Maria Olaisen had bought Trond Frigaard's former mansion in Bygdøy allé for 44 million kroner.

In January of last year, the oligarchic family company Vigner Olaisen purchased shares in the salmon farming company Nova Sea for 7.4 billion kroner. Olaisen's siblings received approximately 1.3 billion kroner each from this, with 30% in cash and the remainder in Nova Sea shares, according to Financial Times. The sisters have since invested significant assets in real estate.

Last year, they bought a 9.9 million kroner apartment in Middelthuns gate, directly behind Frognerparken, based on property data from Lytix. Earlier this year, the siblings also purchased an apartment in Bygdøy allé for 19 million kroner, near the former salmon farming company owner's mansion. Maria Olaisen also purchased a former estate with a beachfront on Hvaler in Østfold for 33 million kroner with her partner in March.

The nearly 18-acre property also has potential, according to Fredrikstads Blad. Maria also owns property in her hometown of Lurøy, and a cabin on Korgfjell outside Mo in Rana, based on Lytix data. Her sister Aino and her partner own a larger apartment in the Opera district of Bjørvika, Oslo. Aino and Maria Olaisen were listed with net worths of 532 and 492 million kroner, respectively, in 2024 according to tax lists.