Background
He was the son of masonry foreman.
architect university professor
He was the son of masonry foreman.
Until 1837, Leins attended the Friedrich-Eugens-Gymnasium in Stuttgart, then served an apprenticeship at a local architectural firm.
From 1837 to 1840, he lived in Paris, where he found employment with Henri Labrouste, while he received training from Eugène Flachat and Jules Petiet. Upon returning home, he passed the state exam for structural engineering. In 1843, he made trips to Bavaria and Austria to study the Medieval and Renaissance architecture there.
His work on a new building for the Russian Legation impressed the Crown Prince, so Leins was contracted to design the "Villa Berg", a new royal residence.
In 1846, he accompanied the Prince"s entourage to Palermo, seeking inspiration from the structures there. In 1853, he undertook another study trip to Italy, Spain and North Africa with Friedrich Wilhelm Hackländer and Theodor Horschelt.
In 1858, he became a Professor at the Technical University (now part of the University of Stuttgart). His personal papers and original drawings are preserved in the Stuttgart University Library.
1857–1859: "Königsbau" (Festival hall and bazaar) in Stuttgart, Schlossplatz (together with Johann Michael Knapp)
1865: Evangelical Petruskirche in Wurmberg
1865–1876: Johanneskirche in Stuttgart by the Feuersee (severely damaged in World World War II and partially restored)
1875: "Liederhalle" in Stuttgart (destroyed in World World War II)
1876–1877: Church in Saulgau
1879: Göppingen Synagogue (destroyed in 1938)
1879–1883: Evangelical Stadtkirche in Weingarten (Württemberg)
1884–1886: Martinskirche in Ohmenhausen (Reutlingen)
1884–1886: Evangelical Kirche-Street.Gallus in Böhringen (Römerstein).
From 1870 to 1872 and again from 1878 to 1880, he was the head of the managing committee and served as a member of the first permanent Governing Board from 1881 until his death.