BIRMINGHAM firm Wragge & Co has added Wycombe District Council to a 30-strong list of local authority clients.
Lawyers from Wragges' public sector department will advise the council's in-house team on its western sector development programme.
The scheme, started two years ago, involves a strategic redevelopment of the western side of Wycombe.
Council lawyers, led by district solicitor David Dongray, will be advised by Wragges property partner Andrew Galla and his team.
The legal work involves giving guidance on areas such as compulsory purchase, infrastructure, planning, capital finance, tax and contract details on the development agreement.
Wragges' 12-strong public sector team, headed by Chris Hughes, also handles work for about 30 councils including Rugby, Burnley and Lancaster.
Heather Stack, Wragges' marketing manager, said: "Because we have been doing this sort of work for a number of years, we have earned a very good reputation."
Wragges, which has a 15-strong legal team, won the contract ahead of two City firms from a shortlist derived from 28 initial expressions of interest.
Stack said: "We are competing more and more for local authority work around the country. It is a high priority for us."