Multi-family Ordinances and the Master Plan
If a city has multi-family residential ordinances and the Master Plan recommends that the entire residential district of the city should allow multi-family development, could a judge decide to rezone single-family lots to the multi-family district if a developer went to court? https://ask.extension.org/questions/317534
The Zoning Ordinance will be the document that is enforceable.
To provide you with more details on the difference between the Master Plan and the Zoning Ordinance, I have included a very informative article and link from the Michigan State University Extension Website titled:
Difference between a zoning ordinance and a master plan
Also please reference the article below for more information on these subjects.
Zoning and police power ordinances are not the same, and should not be mixed togetherhttp://http//msue.anr.msu.edu/news/zoning_and_police_power_ordinances_are_not_the_same_and_should_not_be_mixed
As always, I recommend seeking the advice of your county attorney when there are questions regarding the enforcement of ordinances and decisions made by the Planning Commission.
Have a wonderful day