Berlin Observatory
The construction of the new Berlin Observatory proceeded from a cabinet order of 10 November 1830 according to the design of Schinkel. An approximately one hectare plot was acquired at a price of 15,000 Thalers in the present-day area of Berlin-Kreuzberg. The foundation stone was laid on 22 October 1832 and the observatory was ready by 1835, on the area currently bounded by the streets ″Friedrichstraße″, ″Besselstraße″ and ″Lindenstraße″. The southern end of the ″Charlottenstraße″ was later named ″Enckeplatz″ in honor of the director at that time and the observatory acquired the address of Enckeplatz 3 A (now: ″Enckestraße 11″).
Hamburg Observatory
The precursor of Hamburg Observatory was a private observatory by Johann Georg Repsold built in 1802, originally located at the Stintfang in Hamburg. It started in 1803 with a meridian circle built by Repsold in 1808.
However, it was destroyed in 1811 by a war. Repsold, Reinke, and J.C. von Hess submitted a proposal to Hamburg for city observatory that same year, to rebuild.