Well, those costs are multiplied when doing it for multiple properties all at once so that can be cost prohibitive.  

I’ve started looking at some private deals and the terminology is daunting.. preferred vs common, IRRs, equity multipliers..

Now multiply the number if piers by $250. 29x250 = $7,250.Now add $200 for permit & $400 for Engineer's letter (yes, both of these are required by the City). 200+400 = $600Total foundation price = $7,850.

Now multiply that times 6 (6 x $50k = $300k).CCR is infinite, since you never actually spend the money...it comes back to you with every refi.Joe VilleneuveREcapSystemA2REIC

Typically here in Dallas, when we need to get a rough idea we will multiply the square footage by 25 if it's mainly cosmetic, and if there is a lot of majors that need work, we will multiply it by 35-40 a square foot.

Since there are 8 units, they are multiplying that base $73/month by 8, even though there are only two water meters.

He mentions "Gross Rent Multiplier", a method of determining the value of a small multi family property based on the income generated by the property, similar to valuation of larger commercial property.

We were adding slowly back then, and were able to multiply once we had the resources here. 

At the time our market was hot due to low inventory and most homes where getting multiply offers.

It would be prudent to determine your NOI and the gross rent multiplier of the area to ensure that change will actually result in a significantly increased valuation.