On 27 October 1901, the 14,000 strong garrison of Kronstadt was summoned for the groundbreaking on Anchor Square. Earthwork and work on
concrete foundations and a
granite base continued through 1902; the walls were laid in a massive ceremony 8 May 1903, with the Emperor in attendance. Despite social unrest that culminated in the
Russian Revolution of 1905, the cathedral was structurally complete in 1907; heating and ventilation were operational in 1908, enabling year-round work on the finishes. In 1907, Kosyakov brothers switched to producing detailed drawings and instructions to craftsmen and suppliers of interior finishes. 19 August 1908, they presented the revised album of these drawings to the Romanovs. Nicholas and
Alexandra responded with numerous amendments and changes that were implemented by spring of 1909. In summer of 1909 the external finishes were completed, and the scaffolds removed. The building was clad in black
granite (base and columns) and yellow brick (walls) with
terra cotta inserts. Inside, the
iconostasis was made of
marble from the
Urals. The four portals were decorated with mosaic images of
Theotokos, Saint Nicholas, Peter, Paul,
John of Rila and
Mitrofan of Voronezh by
Foma Raylian. Most interior paintings were executed by the school of Mikhail Vasilyev; icons were painted by Appolon Troitsky. Adjacent park was designed by E. G. Gilbikh. The cathedral was equipped with an independent central heating and a central
vacuum cleaning system employing a complex network of pressurized
manifolds and valves. Electrical lighting employed 5 thousand light bulbs. The cathedral was consecrated in a public ceremony attended by Nicholas II and his family 10 June 1913. Total cost reached an unprecedented amount of 1,955,000 roubles, not including donations in kind and unpaid labor by the seamen and civilians. ==Operation==