Letting Agent's fee near DN37

Letting agents fees in DN37 vary depending on the services and rent. 
The average rent per month in DN37 is £721. So a tenant finders fee for 60% of rent is £433. 
In DN37 a full managment fee for a property is between 10% and 20% of the monthly rental value, averaging between £43 and £87.
Renewal fees in DN37 are charged for renewing a tenancy agreement between the landlord and the tenant, ranging between £22 to £65.