"I optimized every inch of space in the bathroom," says Petillaut, who employed a black-and-white palette and geometric lines that make the room feel more voluminous.   Photo 7 of 11 in Budget Breakdown: A Muddled Parisian Pad Gets a Sleek Makeover for $117K

Budget Breakdown: A Muddled Parisian Pad Gets a Sleek Makeover for $117K

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"I optimized every inch of space in the bathroom," says Petillaut, who employed a black-and-white palette and geometric lines that make the room feel more voluminous.