Editing Hemer (section)

===Communal reform of 1929===
[[File:Hemer Amtshaus.jpg|right|200px|thumb|Old ''Amtshaus'']]
The three industrial municipalities of Hemer, Sundwig and Westig had already grown into a single urban area by [[World War I]]. The idea of merging the three municipalities had already been mooted before the war, but due to the war it was not until 1920 that it was formally proposed. However, neither Sundwig nor Westig was initially enthusiastic and both later opposed the merger, mostly because the industrialists in the two places were worried that the tax rates would rise to the higher rates of Hemer. At the same time the city of [[Iserlohn]] unsuccessfully tried to incorporate several municipalities: Letmathe and Oestrich to the west, and also the industrial municipalities of the Amt Hemer. Because of the opposition, the merger of the three municipalities was delayed until 1929, when it was carried out by order of the [[Prussia]]n Ministry of the Interior. At the same time the municipality of Calle was split into four parts: the northern Griesenbrauck was added to Landhausen; Bilveringsen passed to Hemer; the central part around Wermingsen was incorporated into Iserlohn; and the southern parts passed to Westig. With effect from August 1, 1929, Hemer, Sundwig and Westig, as well as Landhausen and the remains of Calle were merged, covering an area of {{convert|26.82|km2|sqmi|abbr=on}} and having a population of 13,809.

Also with effect from August 1, 1929, the municipality of Brockhausen was incorporated into Deilinghofen. The rural Brockhausen had only 588 inhabitants, and because of its low income was not considered to be financially viable as an independent unit.

On January 30, 1936, the municipality of Hemer received the right to call itself a [[city]] (''Stadt'').