You really cannot do a single rental price per square foot for rentals. 500sf 1 bedrooms will not be as low as 1000 very often, but most 1400sf will be lower than 2800.
A 2/2 will also rent for more than a 2/1 of the same size, and the gap gets larger comparing a 3/1 house with a 3/2 of the same size.
A private garage does not go into square footage but of course is a big advantage.
A lot of the official rent statistics come from large complexes that charge high rents to people with bad or no credit that small landlords usually avoid. They are different markets. They also do gimmicks like first month free or half off.
When I was in the rental market I was amazed how bad the values were in large apartment complexes.
