This is a paid asset, but now you can download City yard scene Free.
Detail this asset from Unity Store: Original Link
City yard scene v1.1
Low-poly photo textured models.
Houses, garages, trash cans, playground and etc.
For your convenience, samples are located in prefabs.
– Reflection windows
– Grass texture (Detail grass included)
Textures: 256×256 – 2048×2048
Textures with normal map.