They're variable rates so they'll go down when interest rates go back down.

-Tips for managing the HELOC and property finances effectively.Others have advised that a HELOC only makes sense for short term use, not long term due to it's variable rate and risk of over leveraging.

I know this, because I DO this, I have been variable/commission based for over 4 years now and I have a good real estate friendly CPA. 

Zipcodes don't work too well as they are large and contain many variable areas.

Hello,There are a lot of variables.

However, here are a few items to consider: whether you want a fixed-rate or variable-rate loan, and also understanding prepayment penalties.

On a 30 Year with rate around 7.50 for example puts you at $1678.00 P&I plus the $350 (escrows) and $250 (water/sewer) total $2,278.00.Rents 4x700 $2800.00 so you clear $522.00 a month without taking out variable expenses. 

But no doubt, developing 10 units is cheaper than 2 units.11) I have seen jurisdictions apply the rent control to the ADU on day 1 when it was converted from an existing space that is over 15 years old (such as an old garage).Good intel, and as Dan points out throughout, there is much more variability with ADUs at this point in their development than other options.

But determining whether to do a cost segregation study or not has a lot variables.

The are always multiple variables such as: are the gift funds involvedProperty typecondition of the propertyIs it ruralTitle seasoningReservesLTVWhat is the estimated DSCR ratioCitizenship status: Foreign National, ITIN, Citizen, Resident, permanent residenceDoes borrower have investor experience or notMortgage payment history called a VOM or proof of timely paymentsGift of equity or not100% gift funds or does borrower have at least 5% down payment and their own reserveshow many acres does the property have?