When we did commercial construction, the one piece units were actually brought to the site during framing, placed into the room they were going to be installed in, and then the building framed around the unit.

To answer your question, it is possible, and quite costly, to have individual meters installed by the city.

Your problem is the installation.

If an incident occurred not caused by the tenant and the property is as practical matter totally unusable for residential purposes, the tenant may terminate the lease by giving notice to the landlord before repairs are completed.Failure to install, inspect or repair smoke alarmTexas law requires the landlord to install, inspect and repair smoke alarms prior to or at the beginning of the tenant’s lease.

I’ve seen shingles installed upside down.

If you have a kitchen that has a ton of counter space I'd skip all these methods and just measure.You'll need to remember to add the price of a new sink, fixtures, and plumbing it.There are a few places in richardson off of Central Expressway that will do it installed for mid-$20s.

The last one is replacing a hot water heater that was there since 2007, which was done, $3k for an electric water heater install.

It involved installing meters inline that reported wirelessly to the internet and allowed you to bill each tenant.  

I have an Off-Grid cabin.....we use a well and solar (that I installed myself).

Service was to clean/service the boiler and install a new boiler gauge.