Here is an example from 1962 when the garage was transformed into a rumpus room:
Front elevation before renovation:
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I personally find the remodel innovative, pleasing and useful. Buildings do change over time according to the needs of their occupants. For more on this concept, read "How Buildings Learn: What Happens After They're Built" by Stewart Brand.
This 1962 renovation was designed by Grant D. Caywood, a respected Sacramento architect. Per his recent obituary this August in the Sacramento Bee:
"In 1953, Mr. Caywood opened a Sacramento architectural firm that grew to five partners. He worked on many residential and public projects, including California State University, Sacramento; the Sacramento Zoo, and Sacramento International Airport. He retired in 1986 and was an emeritus member of the American Institute of Architects." http://www.sacbee.com/101/story/1188432.htmlMr. Caywood also built his personal (and lovely) mid-century home in the same neighborhood as ours.