Sarabråten

Nøklevann is a lake in Østmarka in Oslo, Norway. It has a surface area of 0.8 km², and is 163 meters above sea level. The lake drains through Ljanselva to Bunnefjorden. It is a former drinking water supply for Oslo.

Lutvann is a lake in the recreational area Østmarka in Oslo, Norway. It covers an area of 0.39 km², at 205 m elevation. Located just outside the capital city, it is a popular site for recreation, including swimming and fishing during summer, with brook trout in the lake. In the winter there are ski trails along and on the lake. The lake is also used by the Church of Jesus Christ of Latter-day Saints for baptism. In 2001 activists from the Youth of the Progress Party were charged for cutting down a tree in the preserved area in order to protest the fact that building in the area is prohibited.

Haukåsen Radar is one of two air traffic control radars serving Oslo's Gardermoen Airport, the other being the airport radar itself. The radar is a landmark structure visible from most of Oslo and its surroundings, located inside a white radome on the hillcrest Haukåsen in Østmarka, elevation 357 meters above sea level, south-east of the suburb of Haugerud in the Grorud Valley. The first radar to be built here in 1964, is exhibited at the National Aviation Museum in Bodø in Northern Norway. The radar is unmanned and remotely operated by Oslo ATCC (the Area Control Center at Røyken south of Oslo) and is owned by Avinor. The radar itself, rotating at a cycle of about 4 seconds, can be peeked through a grate when standing directly below the dome. The radiation from the antenna is reported by geocachers to render GPS equipment in its vicinity inoperable.

Ulsrud is a station on the Østensjø Line (Line 3) on the Oslo Metro, located between the stations of Oppsal and Bøler, 7.8 kilometers (4.8 mi) from Stortinget. The station was opened as a subway station 29 October 1967. P.A.M. Mellbye was the station's architect.

Oppsal is a suburb in the borough of Østensjø in Oslo, Norway. The modern history of Oppsal starts with villas and summer homes built during the Interwar period. The Oslo Tramway was extended to Oppsal in 1926. Oppsal was developed as a planned suburb after World War II, and the first apartment block was built in 1954. The suburb got its own church in 1961, and a shopping mall opened in 1964. Oppsal borders on the forested areas of Østmarka. The tram was upgraded to a subway in 1967, and Oppsal is now served by Oppsal station on Østensjøbanen. Oppsal is the hometown of the fictional detective Harry Hole, and is frequently mentioned in these thrillers. The worldwide popularity of the series has made Oppsal better known to non-Norwegians.

Bøler () is a south-eastern suburb of Oslo, Norway. It is one of the more picturesque areas of Oslo. Østmarka forest and lake Nøklevann are in its immediate vicinity. Infrastructure-wise, it has a shopping center [1], two elementary schools, a public bath, a library, a church and a stop on the Østensjøbanen metro line.

Ulsrud is a neighbourhood in Oslo, Norway. Previously an ancient farm, and located between the lakes Østensjøvannet and Ulsrudvannet.The area is served by the Ulsrud station of the Østensjø Line on the Oslo Metro.

Nordre Puttjern is a lake in Østmarka in Oslo, Norway. The lake was almost entirely dried up in 1997 due to a leak during the construction of the railway tunnel Romeriksporten.

Oppsal Church in Oslo, Norway is the parish church for the Oppsal congregation. It is a church center erected in concrete and natural stone, according to drawings by the architects H. W. Simers and H. Chr. Gaaserud. Oppsal Church was consecrated in 1961. It has a high freestanding bell tower. 400 seats, in addition to an adjacent church hall with 200 seats, separated from the church room by a folding door, as well as a kitchen. The great crucifix in the altar wall acts as an altarpiece, and is made by Victor Sparre, together with the church's other stained glass windows. The stained glass measure a total of 220 m², which is the largest area of glass art in any Norwegian church that was built after 1945. The pulpit of wood and the altar and the baptismal font is in soapstone were designed by the architects. The new digital church organ (Allan H-III 370 Heritage) is from 2013.Downstairs there is a smaller hall and a shelter, which can be used for various activities for children and adolescents. There is also an office wing. The three church bells in the separate bell tower were cast by Olsen Nauen Bell Foundry and were mounted in 1961. They are named "The Way", "The Truth", and "The Life ".Oppsal Church is listed by the Norwegian Directorate for Cultural Heritage.

Bøler is a station on Østensjø Line (Line 3) on Norway's Oslo Metro system between the stations of Ulsrud and Bogerud, 9.2 kilometers (5.7 mi) from Stortinget, in the area of the same name. The station opened as a subway station on 29 October 1967, but rail service to Bøler started already in 1958 as part of the city's tram network.The Bøler neighborhood is residential which was developed as a suburb during the late 1950s and 1960s. The old farm at Bøler lies next to the station and is preserved. The station itself has the common layout of two side platforms. The road Utmarkveien passes directly above the station by means of a road bridge. Criticism has been raised over the station's dilapidated condition, but funds for renovation went to other subway stations in 2005.

Haugerud is a neighborhood in the borough of Alna in Oslo, Norway. Its origin was a farm of the same name. It first had a private owner in 1670. Some of the land was parceled out in the early 1900s, and the rest of the land was bought by the municipality in 1947, and built up with apartment blocks in the late 1960s. Since 1970 it's served by the station Haugerud on the Oslo Metro. The local church opened in 1975, and the neighborhood also has a shopping mall.

Hellerud was a borough of the city of Oslo, Norway up to January 1, 2004, when it became part of the new borough of Alna. It is also a traditional neighbourhood located within this area to the south of Tveita and Haugerud and north of Oppsal. It borders on the forest of Østmarka.