You will want to consult a draftsman or architect to draw your plans.

You will probably need to spend some money to get to your answer (eg engineer, architect). 

If you’re a real estate investor and appreciate architecture, you probably admire the legendary architect John Lautner (1911-1994).

Depending on how hands-on you want to be with the project or how custom you want it to be you could visit a local residential architect as well. 

Hi BP investors, I am looking for an architect or structural engineer for a feasibility study to add 2 additional units on RM1-3 lot here in San Diego and possible subsequent collaboration.

I'm looking forward to learning more about property investment as a second career, sharing my experience as an architect, and most importantly meeting some folks with like-minded goals.  

I have recently made the transition from architect to real estate investor and I was wondering if anyone knew of any REIAs or Biggerpockets meetups in Southwest Florida (Fort Myers - Sarasota)?

Profit: to be split based on ownership %'s listed aboveThe question: Partner A will handle most of the day-to-day in working with the GC, the city, architect, some finishes purchasing/deal hunting, utilities, realtors, and buyers (trying to limit to customization....!).

With digging out the basement, doing a full gut of 2200sqft with an entry price of 350k (which tells me you're going to want nicer finishes to maximize ARV in a higher price point market), factoring in holding costs for zoning approval plus at least 8-10k for an architect to do your plans, you're easily 250k+ without a rooftop deck.

This is a development project, so be prepared to fork out meaningful amounts of $ upfront during the process of determining what (if anything) is possible.I would first look through the development standards for a typical R-1 Hillside site (min lot size, length, depth, street frontage etc) and if it looks like you can form a plan that would fit into those requirements and pencil out, then I would tie it up with an extended investigation period and get a surveyor, architect, and some phone calls/emails into city planning.