Another innovation: square tiles of light that could replace fluorescent office ceiling lighting.

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From the minute you walk in the door, the massive foyer entry leads you into an open and spacious sunken living room with pristine wood floors, accent ceiling lighting and two rock fireplaces.

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Not long ago we lucked into one of the enormous royal suites for the night, named the Kipling Suite: polished wood floors, canopy bed, towering floor-to-ceiling windows lighting the plush parlor area.

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However, they disagreed over whether they should install recessed lighting in the ceiling on their own.

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That's not even touching on the superb LED indirect lighting, the ceiling-mounted vanity mirrors and a slew of other swell things.

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The ceiling's restored cove lighting has been dimmed to its 1930s levels, bringing out a variety of subtle tones in the book-matched marble walls, long killed by the harsh fluorescents.

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Pittsburgh-based architect Lewko Korzeniwsky recently finished turning the traditional, Colonial-style floor plan of an old 4, 600-square-foot French Normandy mansion into an open, contemporary interior, reducing the number of bedrooms to four from six and introducing floor-to-ceiling glass windows and recessed lighting.

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Ambient lighting from recessed or flush ceiling fixtures casts an overall relaxed glow or bright light.

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The most notable was when the ceiling of the main floor was lowered by some eight feet and new lighting installed.

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At a 4-foot-long skylight, a 7-foot corrugated-plastic lighting sculpture made of small plates hangs from the 20-foot ceiling.

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