HOSTELS
Safestay London Elephant & Castle: https://www.safestay.com/venue/safestay-london-elephant-castle (144-152 Walworth Rd, London SE17 1JL; 0.4 miles from LCC). This hostel offers a range of dormitory-style shared rooms, and a handful of private rooms. By far the cheapest option relative to distance to the conference venue.
PubLove @ The Steam Engine, Waterloo: https://www.publove.co.uk/pubs/steam-engine (41- 42 Cosser St, London, SE1 7BU; 0.5 miles from LCC). This hostel, part of The Steam Engine pub, has a range of dormitory-style shared rooms, and a handful of private rooms.
The Walrus Bar & Hostel: https://www.thewalrusbarandhostel.co.uk/hostel1 (18 Amelia St, London, SE17 3PY; 0.6 miles from LCC). This hostel offers dormitory-style accommodation. The website notes that the hostel is in a busy area, with noise from the street and nearby railway, but prices its beds accordingly.
Dover Castle Hostel: https://www.dovercastlehostel.com (6A Great Dover St, London, SE1 4XW; 0.7 miles from LCC). This hostel offers a range of dormitory-style shared rooms.