There is accommodation on campus. Follow this link for further information: http://www.warwickconferences.com/facilities/accommodation
There is a good range of accommodation in Coventry (the closest town to the University), and with a wider range of prices. We advise you to choose accommodation close to Coventry railway station as that is where you can catch the bus to get to the campus. Here are two hotels in Coventry which are close to the train station:
The Hotel Ibis Coventry Centre
Other towns with straightforward access to the campus by bus are Kenilworth and Leamington Spa.
Here are the hotels in Kenilworth close to the bus route:
The Holiday Inn Kenilworth-Warwick
In Leamington Spa
Here are the hotels in Leamington Spa close to the bus route:
All these hotels have been mentioned only on the grounds of their practical location. There are, of course, many other options.