Private sector landlords regularly discriminate. I had a job interview yesterday with a private sector lettings agent that were quite open about 'not dealing with dss'. They will only let to tenants able to provide at least two references. This was a large, national independant chain. I know that some provate landlords have a preference for working tenants as I have heard (rightly or wrongly) that HB depts will come after the landlord if there is for example an overpayment of HB because they tenant has not informed of a change of circs. I don't know if this is actually true.