You will need to book your own accommodation and you should do this as soon as possible as June is already a busy time. The RAEng is in central London, so local hotel costs can be expensive. However, the transport links are very good and it is possible to find more reasonably priced hotels further from the centre. See the How to find us link on the Prince Philip House website:
The RAEng has provided the names of some of the nearby hotels and these are listed below. Note that these are mainly 4 star.
If you have any questions, do not hesitate to contact us and we will do our best to help.