Now, this is a small suggestion. Let's say town area is the term for the area where your town members can create buildings and destroy blocks without falter, can lock doors, etc, and non-members can't unlock doors, can't destroy blocks, etc in that area. The main area of a town.
What I suggest is that for every thirty territories the town has, the owner can decide to add an additional town area that's connecting to your main one, with a feature to show which territory you want to convert into a town area, giving the town more space. However, this will add costs to the town (50 or 100 I suppose). However, you will lose the town area if the amount of territories you've gained is below the required amount, and you have twenty four hours to get it back above the required amount or those town areas are converted back to normal territories.
What I suggest is that for every thirty territories the town has, the owner can decide to add an additional town area that's connecting to your main one, with a feature to show which territory you want to convert into a town area, giving the town more space. However, this will add costs to the town (50 or 100 I suppose). However, you will lose the town area if the amount of territories you've gained is below the required amount, and you have twenty four hours to get it back above the required amount or those town areas are converted back to normal territories.