Fraser Bond are the leading lettings and property management agents for Patterson Building - London NW1. Patterson Building at 206 Marylebone Road is an office building in Marylebone, London NW1. The 120,000 sq ft office building is expected to complete in 2023. The Grade A office building will have a new and prominent reception plus significant outside/ amenity space. The 135,000 sq ft (12,541m2) building was once purpose-built as a headquarters building for NCR (National Cash Registers) in the 1930’s. It is now undergoing a comprehensive refurbishment to reinstate the office building into its.