Basement:- Ikea Kitchen w/ laminate countertop- new standard doors/frames/hardware (lowest prices ones)- New Ikea washroom vanity/fixtures- convert existing shower to bathtub (standard)- stainless steel appliances (get lowest priced ones)- stackable white washer/dryer (get lowest priced ones)- pot lights in living/kitchen/hallway- standard light in bedrooms- enlarge livingroom window (to get permit)- new flooring - Luxury Vinyl planks- AC/furnace/Roofing - 16 yrs old (should I replace before refinance?

And you'll have new cracks in unexpected places, old cracks that will not close, but instead enlarge.

And you'll have new cracks in unexpected places, old cracks that will not close, but instead enlarge.

If I really need it I take a pic of them & save them on my phone so I can enlarge them.

My situation may be a little more complicated than a regular rehab because I am hoping to enlarge the width footprint of the back of the house toward an existing 3’ wide walkway/alley that provides rear access to the houses perpendicular to me on the cross street.    

I have been poring through online articles but haven't found much on the subject.For some background I do not own a home at the moment, but am looking at SFR and Duplex rental properties in the area I live in right now.

Enlarged windows.

So I always tell people to compare adding the ADU vs enlarging the existing home (for ADU’s inside building envelope.)

And you'll have new cracks in unexpected places, old cracks that will not close, but instead enlarge.

Put in a couple of comfy chairs for visitors too.Then Mom gets the next two levels to make a living room and bedroom and bath out of.Just do temporary modifications to floor one.And if you can see the ocean from it, maybe enlarge all of the ocean side windows and add large walkout balconies on floors two and three.Good Luck!