What is the average rent for a small (650 sq foot) 1 -bedroom condo with sweeping views

This 1-bedroom condo is in a building (not a high rise) with 60 condos of varying sizes that stagger down a hill. It is officially on Russian Hill next to Coolbridge Park, overlooking North Beach. Views also include Nob Hill, Dowtown, Bay Bridge, East Bay, Coit Tower, and beyond. There is covered parking, elevator, and cable car is 1/2 block away on Mason and Vallejo. There is a common rooftop terrace and a rooftop tennis court as well as covered parking under the building for 1+ 1 guest. I have not raised the rent on this unit for several years and wondering how much to charge per month.