As far as the home prices - you also have to consider how low rates are right now compared with where they've been historically and where they might be.

How does commercial compare to Long term rentals ? 

How do those compare to STR's in the US?

So there's two elements I would suggest to focus on here:CostsResponsivenessCosts you can compare by analyzing the "lender fees" on a "loan summary" or "loan estimate". 

That being said, the overall participation appears to be on the rise, at least when comparing early June to now.

For example if my comparable has one more bedroom, how can I calculate to find out how much 1 more bedroom would cost? 

The whole cost should be pretty minimal (compare to 300k) and result in a decent stream of income which should offset most of my current mortgage (the whole house hacking kind of deal).

Compared to our long-term rentals, the cashflow was significantly higher.

The fees are tiny compared to the fees charged by most mutual funds.

Are there any websites out there that can find and calculate comps near your subject property without you having to do all the work looking for yourself? Something where you just plug in whatever information it requir...