esigned to meet the needs of the future, the Flex and Sage Houses offer unique styling, energy efficiency and state of the art features.  Built to exacting standards, the houses are delivered complete and ready-to-live-in to your site.  Available with complete turnkey installation in California and on a limited basis in Washington, Oregon, Nevada, Arizona and New Mexico, we plan to expand to a larger area in the future.

Right Sized

At 750 square feet and 1000 square feet, the two and three-bedroom Flex and Sage Houses are just the right size for an individual, couple or small family.  Laid out for maximum space efficiency, the vaulted ceilings and large windows make it feel like a much larger space.  For Millennials who don’t want the responsibility or cost of a large house or Baby Boomers looking to downsize, the Flex and Sage House’s are the ideal solution. And a 450 square foot one-bedroom version is on the drawing board.

State of the Art

Featuring Energy Star appliances, hybrid electric heat pump water heater, LED lighting, a “Mini-Split” heat pump HVAC system with separately controllable zones, an optional solar panel array with choices for larger systems and battery backups, optional smart home automation and more…

Net Zero Ready

The Flex and Sage Houses are available with optional solar arrays, with upgrades that include battery backup and full off-the-grid capability.  The houses feature all-LED lighting with the option for smart home automation control of all systems. A “Mini-split” heat pump HVAC system is standard, as is a hybrid electric heat pump water heater. The Flex and Sage Houses feature double-glazed windows that exceed the efficiency of some triple-glazed window systems and the houses meet the strict California Title 24 requirements in all 16 climate zones. They are truly efficient little houses.


The Flex and Sage Houses are produced with healthy materials for the safety and comfort of their owners, while at the same time, our focus on energy efficiency makes them healthy for the planet.  The houses are crafted with FSC certified lumber, low or no VOC materials and exceptionally low GWP (Global Warming Potential) open-cell insulation.


The Flex and Sage Houses are designed to be Net Zero Ready, which means that they can produce as much or more energy as they use.  In addition, the houses are constructed of materials that are grown or manufactured in certified sustainable fashion. There is even an option for a gray water recycling system.


At around $200 per square foot, the Flex and Sage Houses are truly a bargain, including all appliances, a heat pump water heater, an optional solar array, a mini-split HVAC system, an optional home automation system and a choice of cabinetry and beautiful finishes.

Compelling and Fun

While many factory-built housing systems are designed around “stacked cubes”, the Flex House is full of curves, soft-edges and flowing lines. Both the Flex and Sage Houses feature vaulted ceilings and large windows giving them a spacious open feel, that makes them feel like a much larger space.  Yet, they are still cozy and inviting. Everyone who walks into a Shelter Dynamics house is enchanted.

For further information on Shelter Dynamics or the Flex House, please fill out the form below.