Well, I am pretty sure you don't want to move to Sacramento county, if you do, you'll be limited to what car repairs, improvements, and custom changes you can make, to your vehicle, on your property, in your garage. Because rich people are trying to make a profit by investing in real estate

The is a website stating that the laws in Sacramento County make almost any auto repair you do illegal.

http://www.code-enforcement.saccounty.net/Programs/Pages/AutoRepair.aspx

Is minor vehicle repair permitted at residences in any agricultural, agricultural-residential, residential, interim estate and interim residential zones ?

Yes.

However, it is unlawful for any person to engage in minor vehicle repair or maintenance under any of the following circumstances:

Using tools not normally found in a residence;

Conducted on vehicles registered to persons, not currently residing on the lot or parcel;

Conducted outside a fully enclosed garage and resulting in any vehicle being inoperable for a period in excess of twenty-four hours.

What is Minor Automotive Repair?

Brake part replacement
Minor tune-ups
Change of oil and filter
Repair of flat tires
Lubrication
Other similar operations

Why is the county of Sacramento involved?

Code Enforcement is concerned about the chemicals involved in major automobile repair, which can pollute neighborhoods and endanger the health and wellbeing of residents.
Furthermore, this kind of activity increases vehicle traffic and the visual impact can negatively impact property values.​

https://www.msn.com/en-us/autos/news/sacramento-county-says-its-illegal-to-work-on-your-own-car-in-your-own-garage/ar-AADOizD?ocid=sf
https://grassrootsmotorsports.com/forum/grm/it-is-illegal-to-work-on-your-car-in-your-garage-i/155378/page2/