New to the game and so far the best way I've seen to raise land value is to place parks. Is there a better way, or one that takes up less space? I hate having a park on almost every street just to get the land value up.
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Services, like police and such will raise value. Even a school bus stop. But you can also try to create a Venn diagram of value with a few parks, and wait untill higher wealth buildings pop up. Those will raise the value on their own as well, over time.