There ARE a lot of brown houses, at first i thought you were creating a military barracks kind of thing. They are easily sacrificed for new property though, so no big deal. Or you could trade them each for other houses just to mix up the color while we want for new releases.
You have such a nice big residential area though! I wanted mine bigger. Nice allocation of land resources. My big map has highlighted my excess of parking lots. But like you said, I too plan to use them for future growth, so it will all fill up eventually.
But hay now, is that an entry-level KL bus stop i see?? How could you stand for that?? Now your redesign is done, time to get on KL!!
No rest for the weary - tapper! =)