Darwin Consulting and Darwin Property Investment Management are management consultants and property investment management specialists based in St James’s, Piccadilly. sosna witts were engaged to prepare new offices for Darwin. Workplace design provided the space plans, office interior design and office fit-out specifications together with the project management of the refurbishment, the supply of new office furniture and the relocation of Darwin to its new offices. sosna witts provides on-going support to Darwin Consulting and Darwin PIM.