Totally separate water meters?

The building was built in 1898, and has only one water meter.

Fourth unit is vacant and stripped, awaiting remodeling that current owner never got around to doing.)Estimated repairs on vacant unit, per contractor friend that saw it: $15,000Estimated rent for updated fourth 1BR/1Ba unit: $700Utilities (water, trash; electric is metered separately and tenants pay): ~$200Ran it through the BP calculators a couple times and found that at asking price, 20% down, and only the three units rented, it about breaks even (including 10% vacancy, 6% repairs, 8% capex, and 10% PM). 

HUD accepted contract.Inspection turned up copper conduit from meter base to house gone and A/C system striped.

We have decided to move forward with another home, we have been waiting on the bank to clear up some issues on their end with the electrical, currently there's no meter and the power company will not turn it on until repairs are made including a new panel.  

I called the electric company and they came out and told me my meter is tied to the warehouse. 

Each unit has it's own separate meter but it still doesn't allow the the upper tenants to have control of the heat/ac. 

My specific situation is as follows: I have a four-unit building in southern California, with one water meter & one gas-heated water tank.

UPDATE:After much digging, finally found a great resource that shows the elevation in meters for just about every city.

The property was listed with a workshop, in taking a look I noticed it was separately metered, had plumbing and sewage hooked up and was looking good as a candidate for an ADU conversion. ~630 sq/ft.I've confirmed that it meets the requirements for the city and have appointments with teams to discuss plans and get bids for the conversion project.