That's assuming there would only be one developer building one new building, which isn't really the idea here.
Not the idea but in reality without government initiated land forced sale you need
1. Someone(s) to agree to sell some land
2. Usually several adjacent plots to have enough space to build - get them all to sell
3. Planning permission
4. Zoning (but we assume that is fixed here)
5. Profit in the proposed development
6. The buyer
So a lot is needed. Now game theoretically it may be better to be nimby.
Also some people wont sell they are sentiment motivated.
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Not the idea but in reality without government initiated land forced sale you need
1. Someone(s) to agree to sell some land
2. Usually several adjacent plots to have enough space to build - get them all to sell
3. Planning permission
4. Zoning (but we assume that is fixed here)
5. Profit in the proposed development
6. The buyer
So a lot is needed. Now game theoretically it may be better to be nimby.
Also some people wont sell they are sentiment motivated.