A top-level review of some of the most controversial plans for Brighton and Hove begins this week.
The redevelopment of the King Alfred Leisure Centre in Hove and Albion's plans for a new stadium at Falmer will be analysed in the coming months.
Independent inspector Charles Hoile will preside over the examination of Brighton and Hove's draft Local Plan, which is a blueprint for future development.
Members of the public and council experts will have their say during the inquiry, which begins tomorrow.
After Mr Hoile has made opening remarks, the city council will introduce its case for the plan. Then it is over to the objectors and residents.
The inquiry, At Hove Town Hall, should last at least three months, taking a break for Christmas, and will restart next year when plans for the station site will be discussed.
An inquiry into the community stadium proposed at Falmer, which could cost up to £1 million, will begin at the same time.
Environment councillor Chris Morley said: "This is the culmination of one of the most extensive consultation exercises into planning in Brighton and Hove.
"It has given people the chance to have their say.
"The views of residents will play an important part in developing planning policy for the next ten years and beyond."
Among the main witnesses are conservation organisations. Countryside groups are interested in downland policy while developers will have their say on housing.
After the inspector has made his report, the city council will have to decide how the Local Plan should be amended.
There have been thousands of representations for and against policies but many relate to the community stadium.
Other contentious issues will be affordable housing land at Brighton station and possible sites for park-and- ride. Objections to the King Alfred, including building hundreds of homes, will also lead to heated debate.
The inquiry will also look at jobs, leisure, transport and the environment.
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