Theodore Jacobsen

Theodore Jacobsen (died 1772) was an English merchant in London, known also as an architect.

Life Jacobsen was a merchant in Basinghall Street, London. He was the London-born son of Sir Jacob Jacobsen, a north German merchant, of a family closely involved with the Hanseatic League, and their London base, the Steelyard. From 1735 Jacobsen ran the family business there.

In the period 1726–9 Jacobsen rebuilt East India House in the Doric order, which took on the form it presented for the rest of the 18th century. The work was carried out under John James. The House was then reconstructed in the late 1790s, to a plan by Richard Jupp. In 1731 Jacobsen was unsuccessful in submitting a plan to the Bank of England, for building work that was carried out to a design by George Sampson. Henry Keene did further work on the Foundling Hospital site, under Jacobsen's supervision. Jacobsen also designed the Royal Hospital Haslar.

Jacobsen became a Fellow of the Royal Society, the Society of Antiquaries of London, and the Society of Arts. He died on 25 May 1772, and was buried in All Hallows Church, Thames Street, London. He did not marry.

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