Hobrecht was born as the son of the estate owner Ludolph Hobrecht and his wife Isabella (born Johnson) in
East Prussian
Memel. His elder brother,
Arthur Hobrecht, would later become the
mayor of Berlin. In 1834, his father was called to the royal economic council, and the family moved to
Königsberg. In 1841, Hobrecht broke off his school education and began an apprenticeship as a geodesist (professional
land surveyor) for which he passed an examination in 1845. Until 1847, he was engaged in separation work (clearing the pathway of transportation projects from rocks and hills) in East Prussia as well as on the
Cologne-Minden Railway. During the
German revolutions of 1848, he served in the student guards at the
Berlin Palace. By 1847, he had started studies at the Berlin
Bauakademie (one of the institutes that would later form the
Technische Universität Berlin). While at the building academy, he was an active member of the "Akademischer Verein 'Motiv'" student association. The fraternity was originally a loose group of students interested in arts and philosophy, founded in 1847 as a chorus. Along with the rise of the academy, it quickly grew in size and influence on contemporary architecture. Being at the academy, he attended a variety of courses until his examination as "Bauführer" (academic
site manager) in 1849. Right after the examination, he joined the "Architekten- und Ingenieur-Verein zu Berlin" professional association of architects in Berlin. He held different management positions in the circle until he was called off to the infantry regiment in the
Electorate of Hesse in 1850. His first professional work is recorded with the building of the "Packhof" in Königsberg in 1851. In 1852, there are records of managing the
Dirschkeim estate in
Samland. On 4 February 1853, he married Henriette Wolff. The couple had three sons and four daughters in the coming years. James Hobrecht continued his studies in
civil engineering with records of field placements at the
Prussian Eastern Railway in 1857. In 1858, he passed an examination in transportation planning (Wasser-, Wege- und Eisenbahnbaumeister) and found employment at the Royal Prussian urban planning administration (Baupolizei) in the same year. In that role, he was commanded in 1859 to head the commission on the creation of a land-use plan for Berlin and its environs. As part of his job, he traveled to
Hamburg,
Paris, and
London in 1860 to learn about the contemporary development status in urban planning, especially their sewer systems. Before the plan was finished the city came to an amalgamation of its suburbs on 1. January 1861. Based on the just finished land surveys and existing land-use proposals, James Hobrecht constructed a map showing a possible land-use for a city at a projected size of 1.5 to 2 million inhabitants. The map of building lines was soon to be called the
Hobrecht-Plan, but he was not able to continue on the details due to his dismissal on 15. December 1861, even before the resolution of the planning works on 18. July 1862. The reasons for the job termination are unknown. He went to
Stettin to construct the water supply system for the city and to create plans for a modern sewer system which was started to be built in 1870. Before the project was realized in Stettin, he was able to return to Berlin in 1869, where he was commissioned to build a sewer system for the city. This was enabled by his brother
Arthur Hobrecht, who became lord mayor of Berlin in 1872, and
Rudolf Virchow, who had already been a famous medical doctor and influential liberal politician. He laid out plans for a radial system of 12 main routes of canalization from the city to new
sewage farms on the outskirts of Berlin. Soon after his brother took office, the grand pipes were constructed from 1873 until the last one in 1893. While the works were ongoing, he was called to help with the planning of the sewer systems of 30 German cities and the sewer systems in
Moscow,
Tokyo, and
Cairo. From 1872 to 1874, he had a teaching assignment at the
Bauakademie. In 1885, he was elected to head the municipal urban planning department, a position that he held for 12 years. Most of the embankments of the river
Spree were built under his leadership allowing, larger ships to pass through the city. In 1897, he retired for health reasons. In the same year, he was honored with the title of "Stadtältester von Berlin". He remained in the city until his death in 1902. His grave can be found on the
Friedhof II der Sophiengemeinde Berlin. ==Influence and legacy==