2601 Parkway Condominiums HVAC
O&S provided a comprehensive ventilation upgrade for 2601 Parkway, including the installation of energy-efficient make-up air units and natural gas heating to address mechanical code violations and improve air quality.
1199 Housing Corporation
Since 2016, O&S has provided architectural and engineering services for 1199 Housing Corp., a Mitchell-Lama cooperative, delivering façade and structural repairs, site work, and comprehensive compliance support under NYC HDC and HPD jurisdiction.