VALLEY STREAM, N.Y. — New York City-based Philips International has begun a multi-million dollar capital improvements program at 99 W. Hawthorne Ave. in Valley Stream. Construction to the seven-story, 45,330-square-foot property will include a conversion of the building’s space into 99 for-sale office condominiums, which will range in size from 1,000 square feet to 7,486-square-foot, full-floor spaces. The lobby and common area will also see renovations. Kelly Koukou and Mark Greenspan of CB Richard Ellis will handle marketing for the new office condos. A construction timetable was not released.