Scaling Up to Zero Energy Ready - and Down to 530 ft2

Research output: NRELFact Sheet


There is a demonstrated need for affordable housing and smaller homes. Reduced square footage new construction projects present a solution for this growing need. Completion of these types of projects is not without challenges however, as high efficiency building measures present problems with proper equipment sizing and indoor environmental quality. This case study describes the support provided by FSEC to the Manatee County Habitat for Humanity to create a small footprint home design that qualifies for Zero Energy Ready Home (ZERH) certification in Florida. Specific measures to address equipment sizing challenges, and interior air quality targets are identified among other construction elements that contribute to qualifying for ZERH certification. Discussion of the approach to meeting these challenges is informative to other efforts to build to above code standards in hot humid climates, and other regions.
Original languageAmerican English
PublisherNational Renewable Energy Laboratory (NREL)
Number of pages5
StatePublished - 2024

NREL Publication Number

  • NREL/FS-5500-88063

Other Report Number

  • DOE/GO-102024-6119


  • FSEC
  • Habitat for Humanity
  • high performance home
  • small footprint
  • tiny house
  • ZERH
  • Zero Energy Ready Home


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