Protesters in Osterley are confident that the third public inquiry into the conversion of a former theology school site into homes will be decided in their favour.
The four day inquiry by government inspectors is to be launched this week following an appeal by the developers after their application to build on the Campion House site in the heart of the Spring Grove conservation area, was again rejected by Hounslow Council.
Developers Linden Homes, hope to build 154 homes on the Thornbury Road land in Osterley whilst keeping Tigar Hall as a community base.
Councillors and protesters agree that the latest set of plans, which were rejected in December, have been by far the best, with Councillor Barbara Reid saying at the time: "I think we are almost there but we need one more bash at getting it right."
However they raised serious concerns about the buildings encroaching on land specified as Public Open Space and the lack of family housing included.
David Pavett of campaign group Campion Concerns, told the Chronicle: "I'm not really into the predicting game but I think the council has a strong case. They have employed a planning consultant who has thrown up proofs of evidence, I think he has made a good case.
"This is the third appeal that Linden Homes have now made and it's just a matter of the inspectors saying yes or no at the end of the day, obviously I hope they say no.
"They are trying to squeeze too much on to the site and there should be a greater ratio of large family homes with three beds or more compared to flats."
Linden Homes hope to demolish the more modern out buildings on the land and create 13 new ones while converting the listed buildings on the site, Tigar Hall and Campion House, to provide a community facility, IT suite and exhibition space.
The enquiry opens today (July 28) at the Hounslow Civic Centre and is expected to last for four days. It will start at 10am each day and the public are welcome to attend.