Letting Agent's fee near D1

Letting agents fees in D1 vary depending on the services and rent. 
The average rent per month in D1 is £822. So a tenant finders fee for 60% of rent is £493. 
In D1 a full managment fee for a property is between 10% and 20% of the monthly rental value, averaging between £49 and £99.
Renewal fees in D1 are charged for renewing a tenancy agreement between the landlord and the tenant, ranging between £25 to £74.