"The house plan is composed of a grid with alternating interior and exterior spaces, so that every interior space is adjacent to at least two exterior ones," architect Roberto Javier Dumont says. Designed as a weekend house for a family that lives in San Salvador, the retreat totals 3,500 square feet.  Photo 6 of 8 in How Different Countries Around the World Do Indoor-Outdoor Living by Luke Hopping from Striking Designs for Indoor-Outdoor Living

How Different Countries Around the World Do Indoor-Outdoor Living

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"The house plan is composed of a grid with alternating interior and exterior spaces, so that every interior space is adjacent to at least two exterior ones," architect Roberto Javier Dumont says. Designed as a weekend house for a family that lives in San Salvador, the retreat totals 3,500 square feet.