I need help understanding some zoning laws for added units

[Patrick Flanagan]

Hey everyone, I recently started looking for properties that possibly have a opportunity to add another unit on site. I’m trying to understand the zoning laws, how do I know if I am allowed to add another unit on a existing property. for example, I found a tri plex and the roof needs to be replaced soon. I was wondering if I could rent 2 units out and build another story on top of the 3rd unit. So it would turn into a 4 plex. Thank you a head of time for your help

[Kenneth Garrett]

@Patrick Flanagan

You need to identify the zoning district the property is located in within the particular government jurisdiction.  Look at the uses allowed.  Single family, duplexes, 3 unit, 4 unit, etc.   

When it comes to multiple units many times there are limitations based on lot size.  Example would be if each unit must have 3500 square feet of lot size.  A 12,000 square foot lot would be able to support 3 units.  Lot coverage, floor area ratios (FAR) may apply as well as setbacks, parking etc.  I have spent my career enforcing zoning and building code requirements.  It’s a little tricky if you haven’t worked with them in the past.  Remember to add a unit above requires design of the structure, footings, foundations, etc.

Pm me if you have more specific questions.

Good Luck.