Heimdal is the southernmost borough in Trondheim

Trondheim

Trondheim , historically, Nidaros and Trondhjem, is a city and municipality in Sør-Trøndelag county, Norway. With a population of 173,486, it is the third most populous municipality and city in the country, although the fourth largest metropolitan area. It is the administrative centre of...

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 named after the god Heimdall

Heimdall

In Norse mythology, Heimdallr is a god who possesses the resounding horn Gjallarhorn, owns the golden-maned horse Gulltoppr, has gold teeth, and is the son of Nine Mothers...

 in Norse mythology

Norse mythology

Norse mythology, a subset of Germanic mythology, is the overall term for the myths, legends and beliefs about supernatural beings of Norse pagans. It flourished prior to the Christianization of Scandinavia, during the Early Middle Ages, and passed into Nordic folklore, with some aspects surviving...

. The area has been continuously inhabited since at least the Iron Age

Iron Age

The Iron Age is the archaeological period generally occurring after the Bronze Age, marked by the prevalent use of iron. The early period of the age is characterized by the widespread use of iron or steel. The adoption of such material coincided with other changes in society, including differing...

, and is rich in archaeological site

Archaeological site

An archaeological site is a place in which evidence of past activity is preserved , and which has been, or may be, investigated using the discipline of archaeology and represents a part of the archaeological record.Beyond this, the definition and geographical extent of a 'site' can vary widely,...

s.

The area around the railway station

Heimdal Station

Heimdal Station is a railway station located in Heimdal in Trondheim, Norway. Located 12 km south of Trondheim Central Station on Dovrebanen, it is served by express trains between Trondheim and Oslo as well as the regional train services Trønderbanen and Nabotåget, all operated by Norges...

 was until 1964 the center of two separate local municipalities

Municipalities of Norway

Norway is divided into 19 administrative regions, called counties , and 430 municipalities...

, Tiller

Tiller, Norway

Tiller is a former municipality in Sør-Trøndelag county, Norway. Tiller encompassed part of the south central part of the present-day municipality of Trondheim...

 and Leinstrand

Leinstrand

Leinstrand is a former municipality in Sør-Trøndelag county, Norway. The area of Leinstrand encompasses the south central part of the city of Trondheim. The local Leinstrand Church was built in 1673.-History:...

. The western part of Heimdal consists of the rural areas of Byneset

Byneset

Byneset is a former municipality in Sør-Trøndelag county, Norway. The largest village in Byneset is Spongdal, other villages include Byneset and Langørjan. The municipality of Byneset encompassed the western part of present-day Trondheim municipality. It sits along an arm of the Trondheimsfjord,...

, also a separate municipality until 1964. The eastern part of Heimdal, Tillerbyen, is a recent development, planned to ease the pressure on central Trondheim from the commercial boom in the city.
The area where Tillerbyen has been built was initially swamp

Swamp

A swamp is a wetland with some flooding of large areas of land by shallow bodies of water. A swamp generally has a large number of hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates periodical inundation. The two main types of swamp are "true" or swamp...

, but it was drained in the 1930s as an airport

Airport

An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...

 was planned here.