ARCHITECT W. D. Riddle, of Cleveland, Ohio, designed the house for himself, his wife, and their daughter, Pat. He knew his problems to start with: a limited budget and limited space. And he'd seen so many clients trying to cram too many demands into one house and budget that he knew better than to make the same mistakes when he built for himself. His approach was logical and simple the crystallization of all his objectives into his aims. He wanted to get the effect of space, inside and out, without losing an intimacy between outdoors and indoors. In a minimum of space he sought to get a maximum of efficiency with low maintenance and easy cleaning demands. Then he considered important check points to follow in sticking to his aims. In building less than he thought he'd need, he was sure to spend less than he could afford. He added to the cost of the house itself, the cost of the lot, furniture, decorating, and financing. And, he didn't forget that the Riddles would be the ones who would clean the house and keep it in repair. Economy came hand in hand with simplicity. Storage space was built into the long, inner wall of the car port. Water heater, automatic washing machine, house heater, and linen storage space are all in the one 4- by 7-foot unit next to the bathroom. By building in furniture wherever possible, Riddle has saved furnishings cost. By being thrifty with space in kitchen, bedrooms, and bath, he has held out an extra dividend of room which has been added to the living room, itself 15 feet wide and 21 feet long and flooded with light from a massive window on the high, front wall.