can you do anything with this house to look nice?
we could put a really big picture of a nice house in front of it
more seriously, this house DEFINES midcentury 3/2 vernacular ranch cosmetic fixer: your question is, since this is untouched, what would it be / look like, if someone with style and taste mde some changes?
unfortunately, I think the best thing to do to it would be to 1) add a second story with a really, really good architect and 2) think about the window openings and ceilings
you have to choose a color to paint the house, something bold, like aqua or mint with white trim; those are mature yucca we'd want to keep, so you just rip up the rest of the grass in front and my vote would be to hire these really cool young guys in Palm Springs who do succulent and cactus gardens: different colors of rock and glass, blooming cacti and succulents, the old yucca looking like palm trees, multi colored spotlights at night
you make the back fireplace three sided, so that you have a fp on the patio and on the inside and can see thru
you extend the existing original ameoba concrete patio by pouring two more "waves" of patio in blue - green tints up to a pool which has a shape
totally new kitchen, I'm hoping you can open it to the back with sliders
since this is a tract home, there may not be wood or marble chip under the carpet & lino, although I see some hardwood in the living room; I would probably do magnesite or polished concrete with an aqua blue wave thing in the kitchen if it can open out to the back (concrete counters), and marble chip or colored bamboo elsewhere
the zodiac wallpaper bathroom is a total loss
those bedrooms with the mini windows are pretty useless and grim, but they are on the back, so this is where you change the window openings; another idea is to make them the guest suite/office and go up for more bedrooms
hopefully the master is where that wall is and there's a patio of some sort off of it? this part -- matching above the garage in the floor plan probably -- you might try to get a tray ceiling
you might open the ceiling above the lr & family which flows together at the back of the house