The survey reveals permanent HR salary levels grew 2.6% in London in 2011, 0.3% in Birmingham and 0% in Manchester.
In London, the most significant increases were seen within commercial businesses, where overall salary levels leapt by 10.8%. By comparison, HR salaries within financial services firms fell 3.5% during the same period.
The survey highlights that HR business partners received notable increases, with professionals working in commerce and industry now receiving annual salaries of up to £100k (compared to £85k a year ago) and up to £95k in financial services (compared to £90k last year).
Kate Francis, manager of HR recruitment at Robert Walters, said: "Our results reveal a mixed picture, which is to be expected given that market sentiment remains cautious in many areas. But it is encouraging that overall HR salaries are increasing. The fact HR business partners in particular are receiving notably higher salaries than they were a year ago is unsurprising given the demand we have seen for these professionals.
"Reward specialists have also been sought-after and salaries have risen marginally for these individuals too. We expect this to continue to be the case throughout 2012 as employers attempt to ensure they are rewarding the right people in their organisations."