It happens so often you made a beatifull place and it realy fits nice into the neighborhood.
The surounding building also reflect the same style a bit and its a great place.
Then a new neighbor arives, and for example places a huge cube besides you and he puts on an ugly texture and damn you place became like if it stood next to a nuclear building.
Now it might not be a cube perhaps you're all in a medevil style and he puts in a 20th century villa.
Ofcourse in a normal world (and as in SL) ground price drops as a result. No one would like to stand next to such a neighbor.
I understand that we're not all pro builders, but i got the idea that most SL people now of the example i told. To solve this i think of a newkind of solution is required.
I think of 2 solutions :
Be able to swap land (it's only a location), maybe based on voting. For example 75% of the neighborhood found you a better nuclear waste area, and that location might even have room left for you. Benneficialy your style would improve that area overthere.
If such a system is going to be used extra land should be put in between current land to give room for swaping a parcel
Or
Simply give each parcel the option to have an aditional 50 objects, but those 50 you can only get if most of your neighborhood agrees to the style of your building. 50 isnt much its just a nice extra. if the system works and mainland improves by it one could raise it to 100. As a kind of bonus for good builts. And maybe have extra bonus in this if a complete sim is into a certain style.