My sim made a lot of money in the agriculture business; lives in a 30x20 lot in an expensive neighbourhood; 4 bedrooms, 5 bathrooms. The house was worth 300k fully furnished when I built it and moved in, but thanks to all the masterpieces my sim paints, it is up to about 600k. I keep a very slim inventory and have the frugal reward trait. Pay around 10-12k a week. Have enough money to pay them+a butler+a gardener and never do any work. The point of all this bragging being: consider growing some fruit/vegetables.
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Sim is also immune to fire.