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US law firm looks to double footprint as it launches London headquarters search

Newmark appointed as American legal firms continue to target big moves in capital
Sullivan & Cromwell's long-term London office is at 1-9 New Fetter Lane. (CoStar)
Sullivan & Cromwell's long-term London office is at 1-9 New Fetter Lane. (CoStar)
CoStar News
June 11, 2026 | 1:55 P.M.

Sullivan and Cromwell, the New York-headquartered law firm, has launched an up-to-160,000-square-foot requirement in central London. This would more than double its footprint and underlines the voracious appetite of American law firms for offices in the capital.

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