Just something which you guys may want to consider.
This plot of land have been bought over by a private developer to develope it into a high rise residental property for the purpose of profit. Consideing the cost of the land, development cost, arct. work, etc, there's no way the owners will give it up just for the sake of conservation.
Even if they somehow manage to change the design to fit the org building, which will cost a big bomb, this will still be a new building, and it will be a private resident building, meaning no one except the residents and their guest will get to see/enjoy the conservation. So is it still worth conserving?
Unless someone really rich buys it over, keep it the way it is and open it to the public, all this talk of inviting public feed back is just PR talk by the deloveper.