Church building in Norway began when Christianity was established there around the year 1000. The first buildings may have been post churches erected in the 10th or 11th century, but evidence is inconclusive. For instance under Urnes stave church and Lom Stave Church there are traces of older post churches. Post churches were later replaced by the more durable stave churches. About 1,300 churches were built during the 12th and 13th centuries in what was Norway's first building boom. A total of about 3,000 churches have been built in Norway, although nearly half of them have perished. From 1620 systematic records and accounts were kept although sources prior to 1620 are fragmented. Evidence about early and medieval churches is partly archaeological. The "long church" is the most common type of church in Norway. There are about 1620 buildings recognized as churches affiliated with the Church of Norway. In addition there is a number gospel halls belonging to the lay movement affiliated with the Church of Norway (not regarded as church buildings) as well as churches belonging to other Christian bodies. Until the 20th century most churches were built from wood. 220 buildings are protected by law, and an additional 765 are listed as valuable cultural heritage.
From early Christian times, a clerical administrative subdivision was established. For instance, in Hordaland there were subdivisions as one fourth ("fjordung" or "fjerding") or one eight ("åttung") of a county, each with its own main church. For instance Sakshaug old church was the main church for one of the four districts of Inntrøndelag.
Church building has been influenced by the role of the State or the Crown. The Reformation in Norway was accomplished by force in 1537 when Christian III of Denmark and Norway declared Lutheranism as the official religion of Norway and Denmark. The Crown then took over church property, while some churches were plundered and abandoned. After the reformation bishops were appointed by the king, while after the introduction of absolute monarchy in 1660 all clerics were civil servants appointed by the Danish king. When a liberal constitution was introduced after independence from Denmark in 1814, the Lutheran church was recognized as the State Church. The ban on Catholicism within Norway was lifted in 1843, while the ban on monastic orders were formally lifted in 1897. After the 1814 events, Norway was no longer under Danish rule and instead entered into a personal union with Sweden. A civil administration and national institutions were subsequently established within present day Norway.