List of hotels within walking distance from the Engineering department:
College accommodation. These are nice single en-suite rooms, but most of them not to hotel standard:
https://www.universityrooms.com/en-GB/city/cambridge/home/?
Economy hotels, rooms are comfortable but not luxury (equals to a 3star hotel):
https://www.lensfieldhotel.co.uk/accommodation/
https://all.accor.com/ssr/app/ibis/hotels/cambridge-uk/index.en.shtml
https://theregentcambridge.com
Up-market and expensive hotels, these are the top end hotels in Cambridge:
https://graduatehotels.com/cambridge
https://www.hilton.com/en/hotels/stnhchi-hilton-cambridge-city-centre/
https://www.gonvillehotel.co.uk/
September is tourist period in Cambridge, we recommend that you book your hotel well in advance!!!!!