I'm guessing you're talking about renting an apartment.
In Santa Monica, Initial lease term is generally one year, and then you go on month to month.
Rent increases are dictated by the City of Santa Monica in July, they go into effect into September. They never seem to equal the cost of living increase. (This year was 2.7%).
Prices are as variable as jobs, depending upon what you're leasing...one bedroom, two bedroom, three bedroom, etc. I believe the going rate for a 1-bedroom in Ocean Park is around $1,800 per month at the moment.