1. Couchsurfing: Couchsurfing is a hospitality exchange network where you can stay with local hosts for free.
2. Hostels: Hostels are a budget-friendly option for accommodation, providing shared dormitories and common areas.
3. House Sitting: Consider offering your house-sitting services in exchange for free accommodation.
4. Camping: If you're traveling during warmer months, camping can be a free option in designated camping areas.
5. Volunteer for Accommodation: Certain organizations and projects in London may offer accommodation in exchange for volunteer work.
6. University Accommodation (Summer Only): During summer breaks, some universities rent out their student accommodations to visitors at a lower cost.
7. Work Away: This platform connects travelers with hosts who offer accommodation in exchange for work, such as gardening or language teaching.
8. Home Swaps: Home swapping involves exchanging your home with another person's home, essentially providing free accommodation.
9. Friendship and Networking: If you have friends or acquaintances living in London, consider reaching out to them for a place to stay.
10. Church Hospitality: Some churches in London offer hospitality rooms for travelers on a budget.
Remember that some of these options may require prior planning, such as coordinating with Couchsurfing hosts or confirming house sitting arrangements in advance.