Letting Agent's fee near SO21

Letting agents fees in SO21 vary depending on the services and rent. 
The average rent per month in SO21 is £2,372. So a tenant finders fee for 60% of rent is £1,423. 
In SO21 a full managment fee for a property is between 10% and 20% of the monthly rental value, averaging between £142 and £285.
Renewal fees in SO21 are charged for renewing a tenancy agreement between the landlord and the tenant, ranging between £71 to £213.