§ Chris Grayling
To ask the Secretary of State for Transport what work his Department has done into the technical feasibility of additional runway capacity at Heathrow. 
§ Mr. Jamieson
The South East and East of England Regional Air Services Study (SERAS) has examined and appraised a wide range of development options for terminal and runway capacity at existing airports and new sites.
The technical study has now been completed. It would be inappropriate to comment on the status of the options considered at this stage. We intend to launch a full public consultation on the final shortlist of options early in the summer.