The penthouse, built on the roof of an existing one-story bungalow, frames panoramic views of St. Martin. An open plan and continuity of the interior and exterior spaces contrast the inherited Spanish colonial architecture below. Structural systems and their inherent logic are exposed: the concrete frame allows a deep roof projection for sun shelter and provides hurricane bracing, teak ceiling beams inside support the raised bedroom section. A garden stair, supported on a single flared concrete column, slips through the trees from the penthouse to the pool and grounds below. 2004.