In this downtown Brooklyn adaptive redevelopment project, the Pioneer Building at 41 Flatbush Avenue was converted from a 10 story, 230,000 SF self storage building to a mixed-use, multi-tenant office building with retail on the ground and cellar levels. The design retained the building’s original architectural exterior with modern industrial interiors.

Collado provided mechanical, electrical, plumbing and fire protection consulting engineering services for the replacement of all systems and worked with an acoustic consultant to ensure all rooftop equipment complied with the NYC Noise Code. Condensing boilers in the mechanical penthouse supply hot water for temperature maintenance of the condenser water system and roof perimeter radiation. The dedicated outside air units (DOAS) deliver ventilation to all spaces and also provide make-up air during smoke purge operation.

Electric service was upgraded and a diesel generator, with fuel oil storage in the cellar, provides power for building emergency and standby systems, including emergency lighting, fire suppression, and smoke purge. Architectural louvers are provided on the building’s façade to allow retail tenants to deliver the necessary ventilation and exhaust air.