To provide a design apparatus for a garage and an in-site parking space for setting an easy-to-use parking space.

A parking space 26 design-supported by a design support apparatus is so set that a vehicle C makes an access to the parking space 26 from the direction crossing a vehicle advancing/retreating direction while turning. The parking space 26 includes an actual space S1, a getting on/off space S2, and an article access space S3. The width dimension of the riding on/off space S2 is larger than the side door opening dimension of the vehicle C. The depth dimension of the article access space S3 is larger than the rear door opening dimension of the vehicle C. The parking space 26 is so set that a turning path template N corresponding to the vehicle C does not deviate from the boundary section of the parking space 26 and the boundary section of a road 13.

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