Converting single house to a duplex or triplex. Need advice.
Hi All,

I need some input from anybody that has converted a single house into multi unit one. Planning to buy a house and convert it to multi unit and rent the units. I did a small research but want the input of somebody that has done it and if possible line out the steps to take. Also if you done it, will you do it again ? Was it profitable ? Originally was looking for multi-unit house but those are at very high price, meanwhile there are single house that are way more cheaper and need rehab work anyway. 
Please correct me if I'm wrong or add to my list. 
Things to check:

1. Check with electrical company if possible?
2. Check sewage systems need to be separated?
3. Additional addresses (Guessing the city)
4. Check if county/city allows ?

Thanks for the help.

 
[{"id": "cbupa32", "text": "You need to go find out what the zoning is. Multi family is only permitted in certain areas. Rules on multi family vary by city. Where I do real estate a multifamily needs to have a single common door. This is not always easy. Your local zoning officer can help you.", "replies": [], "depth": 1}, {"id": "cburons", "text": "I did an unpermitted duplex 20ish years ago.  The conversion was relatively cheap (2 walls and adding a new kitchen).  It was more profitable on a monthly basis, but it would have taken several years to pay back the (cheap and dirty) cost to do the conversion.  A neighbor called in the duplex, and I had to remove a wall and sink in the second kitchen.  If I added permitting costs, and the added expenses of the necessary upgrades to meet building codes, it would have increased the cost/payback timetable past cost effectiveness for my property. In my case, it was a bad idea, but at least I did it on the cheap. \n\nWhy don't you just patiently shop for an existing du/multiplex that the numbers work out on?  It seems like a better option.  \n\nIf you are dead set on the idea, check zoning first.  There will be well documented rules for all of the questions you asked above.  So start with the building dept.  \n", "replies": [], "depth": 1}]