@sunddee4 Thank you for the extra information. From what you said, I don't think it's the houses themselves or cc. I've never seen anything like it before. So a few more questions.
Have you tried repairing the game since this started?
Can you see the black lines when you're in live mode on the lot itself playing or is it just on the map?
Does it happen in any other worlds or just Newcrest?
Are you running the game on a laptop or desktop and has anything changed with your hardware (like a new video card)? There have been a number of graphics issues with graphics on laptops.
Have you changed your graphics settings recently? And have you tried changing your graphics settings to see if it would go away?
To be honest, I'm sort of grasping at straws now on what it could be. Since it isn't a bad download or a cc issue, I'm sort of leaning towards a graphics/rendering issue. But if only happens in Newcrest, it's probably not that either. If you've repaired the game, it's probably not a bad file. I've seen a number of posts on graphics/rendering issue on laptops and with some on specific video cards but if you've changed nothing hardwarewise and only installed packs and the patches, I just don't know.
@crinrict bushes is the correct term in the US. Scrambles threw me for a loop too until I looked it up and found that it's a UK term that means the same thing like the bonnet of an automobile is called a hood in the US so I guess your translator uses UK English terminology. <grin>