Bedroom, Bed, Light Hardwood Floor, and Chair While getting budget estimates from contractors is crucial, it’s also important to remember that the final cost for a project may fluctuate due to unforeseen developments or changing needs. For lawyer Paul Andersson, the cost of renovating his tiny New York apartment rose from $150,000 to $250,000 during the process, mostly due to the addition of a pivoting wall system.   Photo 3 of 5 in Editor's Letter: Small Space, Big Design

Editor's Letter: Small Space, Big Design

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After successfully reconfiguring his own tiny New York City apartment, Robert Garneau, partner at Archi-tecture Workshop PC, reinvented a 400-square-foot studio for neighbors just a few floors down. Called the Pivot Apartment, the highly efficient residence now serves multiple functions, thanks to a central modular unit that can be arranged to create distinct stations for living, sleeping, and entertaining.