2025 Large Residential
2nd Runner-Up &
People’s Choice Winner

Project Statistics


Location: Winterset, Iowa
Type: Residence
Size: 5,168 sq. ft.
ICF Use: 13,976 sq. ft.
Cost: $3 million
Total Construction: 160 weeks
ICF Installation Time: 60 days

Construction Team


Owner/Developer: Chris and Laura Bertelson
General Contractor: Newcastle Enterprises
ICF Installer: Newcastle Enterprises
Form Distributor: Carroll Construction Supply
Architect: Clause Architect
Other Team Members: Lange Structural Group
ICF System: Fox Blocks

Fast Facts


  • Existing building demolished
  • Heated floors, geothermal, solar panels, rainwater collection
  • Safe room under wraparound front porch
  • 44 corners for basement and main level
  • Beams carry partial upper level
  • Steel tube carries the eyebrow roof load between main and upper-level
Bertelson Residence

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