Lommedalen is a rural community in a small valley in Bærum municipality in the county of Akershus, Norway. The population is about 3,000 people. Lommedalen valley opens up at Bærums Verk and runs about 5 kilometers to the north.

Bærum is a municipality in the Greater Oslo Region in Akershus County, Norway. It forms an affluent suburb of Oslo on the west coast of the city. Bærum is Norway's fifth largest municipality with a population of 128,760 (2021). The administrative centre of the municipality is the town of Sandvika. Bærum was established as a municipality on 1 January 1838.