CSL 2018 will be hosted by the University of Birmingham. The venue for the conference will be the Writer's Suite at Edgbaston Park Hotel—a brand new facility, right on the campus of the University.
Birmingham International offers connections to most major European airports, and to major intercontinental hubs. From there, the city center is a short train ride away, with services running as often as every 5m.
Due to its central location Birmingham is also conveniently serviced by several other airports: Manchester Airport, Liverpool John Lennon Airport, Bristol Airport, and London Gatwick Airport are about 2h by public transport; Heathrow Airport is 2h30; Stansted Airport has a direct service to Birmingham New Street that takes 3h.
Birmingham has two central train stations linking it with the rest of the country, Birmingham New Street and Birmingham Moor Street (and which are within walking distance from each other).
The conference recommended hotels are:
Other, more central, options:
Birmingham has no shortage of accommodation that can be booked via the usual websites. AirBnB in the Selly Oak area (right next to campus) might also be a (cheaper) option since the conference takes place during the school holidays.
New Street station has a direct service to University station, going via Five Ways, with trains running every 10m and having a journey time of just 8m. From there it's a short walk across campus to the conference venue. An any time return ticket costs £3.10 (off-peak tickets are valid only after 9.30)
Buses 98 and X64 depart just outside New Street, and run also every 10m for a journey time of 8m. Edgbaston Park Hotel is served by the Westmere stop. Tickets can be purchased on the bus with exact change. A single ticket costs £2.40; a day pass £4.60. Mobile tickets for these two routes can be purchased using the app of their bus operator.
When sunny, a leisurely walk by the canal is also highly recommended.
For any doubts or comments there is a sub-reddit dedicated to CSL 2018 which others can see and use take part in the discussion.
Alternatively, just email the organizers.