Greenwood: Concept Modular Prefab Home

The Greenwood House is a modern American four-square home, designed for a compact lot in a walkable urban neighborhood. It is a good fit for lots that are about 40’ wide. Main living spaces are on the ground floor with high ceilings and wide translucent windows, while bedrooms are upstairs. The garage is below or behind, out of the way.

Like the original Sears Catalog homes from a century ago, this home is designed for prefabrication. It can be set as four modules plus a roof panel pack, or delivered as wall panels. It utilizes beautiful mass timber panels as part of the structural system. It has a clear, rational organization for plumbing fixtures. This design improves on the century-old prototype with a modern, open floor plan on the ground floor, and more space upstairs for additional bedrooms and baths, which cantilever out and create protected entries at the front and rear.

This project demonstrates a commitment to green with the prefab process; vegetated roofs; an energy efficient window & door package; super-insulated floor, wall, and roof assemblies; continuous natural ventilation with heat recovery; electric heat pump heating; and mass-timber.

This home has been designed with thick exterior walls, a high-performance window & door package, deep overhangs, continuous heat-recovery ventilation, and efficient heating & cooling.

Mass Timber Design with CLT:

This home has been designed to utilize 5-1/2” cross-laminated timber (CLT) floor slabs and shear walls. These slabs are suitable to be exposed as finish flooring, as well as the finish ceiling (seen from below), and are prefabricated from five layers of laminated timber. There is no plumbing in the floor.