Plain-English answers on zoning, air rights, development value, and selling — written for owners, not lawyers.
An Office-to-Residential Conversion involves complying with NYC zoning regulations, adhering to varying building codes, and retrofitting the building with new needs, like plumbing and ventilation. Optimal office buildings to convert to residential have favorable structures, often featuring shallow floor plates for natural light and ventilation, window-to-depth ratios that allow for bedroom windows to fully open, and a pre-existing perimeter core that efficiently uses the middle of the floor for utilities. An office-to-residential conversion typically requires 18-24 months start to finish and ranges in cost $400-$600 per gross square foot. Pre to post pandemic, the NYC real estate market has shifted towards office-to-residential conversions in order to combat housing shortages and oversupply in office space - with zoning reforms and 467-m policy incentives serving as structural tailwinds.