There are a TON of those in the SF Bay area -- like entire communities made up of 'em:
They look to be fast to construct and OK for snowless climes -- like SF -- but I sure wouldn't want one in snowy OH.
They also tend to be about 1/3 of the square footage size of the one in OH.
I’ve known about the west coast fondness for Eichler houses for years, and am amazed that there are abandoned former full service stations all over this state, that look very much like Eichler, and nobody wants them. Might have something to do with leaky underground tanks and soil remediation, but there is assistance for that. The earlier more art deco-looking ones that survived got repurposed. Maybe somebody on the east coast will finally appreciate these eyesores. The architecture isn’t bad, once you get past viewing the service bays as service bays.
They are all that-—the midcentury look-—but the genuine Eichlers tend to have 1: huge glass, 2: sometimes exposed I-beam roof supports, sometimes not and 3: radiant floor heat in poured concrete floors.
The wide-open glass walls with 4x4 supports are nowhere near code-conforming at this point, both in terms of tempered/non-tempered, non-insulating glass and the beam-to-column ties. But they are a big part of the look. So replacing those can be very expensive.
Additionally, if the floor heating system is leaky, it might be necessary to demo the whole thing and replace it with a modern system. It’s very dicey, of course, to cut the floor to install new utilities because you can easily chop into the radiant heat. In general, new utils have to be run atop the roof. An additional expense because now you have roof penetrations and outdoor conduit/duct considerations....and those can change the look and might not even be allowed by some local bldg codes.
There is generally no good way to run any sort of new electrical lines and a kitchen “island” is almost impossible without a tall vertical element to hide utilities.
Finally...the interior surface of the ceiling was, in Eichler’s, 8” nominal planks. Those planks are 7-1/4” today so it can be visually upsetting to “splice” such a ceiling to existing space for an add-on. Custom mill your lumber? No problem, just throw big money at it. A recurring theme.
I definitely like the open airy feel of the homes but they definitely present some serious remodel challenges.