Letting Agent's fee near Greater London

Letting agents fees in Greater London vary depending on the services and rent. 
The average rent per month in Greater London is £2,430. So a tenant finders fee for 60% of rent is £1,458. 
In Greater London a full managment fee for a property is between 10% and 20% of the monthly rental value, averaging between £146 and £292.
Renewal fees in Greater London are charged for renewing a tenancy agreement between the landlord and the tenant, ranging between £73 to £219.