@Robert B Azimi measure it and call a concrete guy.

I doubt as a society we will ever solve the affordable housing problem our country faces, but there are certainly measures that can be taken to make housing more affordable.

I made cash only payments and use envelops to measure my expenses. 

I took notes what you said, and this really does help provide measurable action steps for me in the near future.

I thought  @Elliot B. was talking about installing meters on the supply and return pipes for each unit and measuring BTUs there.

Therefore expect a 15 page home inspection report   filled with corrective measures you must satisfy otherwise the buyer walks.All in between turning over the home, ordinary transactional costs ( broker fees, transfer tax, loan payoff fees etc.) seller assist, repair addendum repairs its very possible for your exit fees to approach 13-15% of the properties sale price. 

That is why the acronym BRRRR is so popular and it has a track record of winning because inside that BRRRR is a metric that can be measured and replicated.

Make a Rolodex of them for later.2 - Complete your design plan - i.e. take measurements and come up with a plan. 

What we do for houses with heating oil , we measure the amount of oil in the tant ( There is a chart that tells yo how many inches equals gallons ) And the tenants pay that up front when they move in , the oil is now theirs .

Everything including bitcoin is measured in dollars.