The Paddington Integrated Project (PIP) was established to deliver an integrated proposal for the north of Paddington Station incorporating the aspirations of Crossrail, London Underground (LU), Network Rail and Transport for London. The multi-disciplinary team is lead by Weston Williamson + Partners with Mott Macdonald (Engineering) and Corderoy (Costs). Additional support covered passenger modelling, lighting, heritage and construction planning. The implementation of the proposals, which include step-free access between all the critical levels on site, will enable the station to meet present and forecast demand. The design of each component of the scheme has been developed with Structural and M&E engineering, cost appraisal and construction planning support. Consultation with English Heritage and WCC has informed the design regarding the issues associated with a significant project located partly within the curtilage of a Grade 1 Listed Building. The result is a coordinated and robust proposal that encompasses functional efficiency, structural integrity, constructability, lifetime costing and programme as well as responsiveness to site and setting.