The owner acquired an existing mid-century modern house with the hope of renovating it; however, as the CTA team worked through the project, it became apparent that it was going to be exceedingly difficult to renovate the existing framing to meet current energy codes and structural requirements.  The owner and CTA team decided to rebuild the building to its same exterior appearance, with new framing, windows, and envelope, a decision which freed the team to modify the interior configuration to better meet the client’s needs.  Working within the original shell configuration, the team created a new design which speaks to the simplicity of the original mid-century house, with large thermally broken steel windows, rift oak paneling, and floor to ceiling casework.  The constrained envelope required highly detailed integration of all systems, which the design team worked through in collaboration with the engineers and builder during the design process.  The exterior matches the original design exactly, while the interior provides a fully contemporary living space inspired by the mid-century original.