Debra Rucker Coleman, Architect
Floor 1
1,818 sf
Floor 2
650 sf
2,468 sf
Entry Faces
South Glass
Mountain Atrium
The Mountain Atrium is a simpler, smaller version of the popular Atrium designs that sit at an angle to the sun. The Mountain Atrium was modified to fit on a family cabin site and the extended family was involved in the design changes since they would all be visiting on long holidays. They needed plenty of nooks for sleeping and a large screened porch to take advantage of their southeast view. The front door and family entry to the screened porch are both from the northeast. The garage was detached to improve views from inside.
First Floor
The atrium is still the core of the home, but the hearth has been moved to allow the great room to expand into the atrium area. Both the laundry and downstairs guest bath are located to be convenient to the bedrooms. The laundry is big enough to be used as a bedroom or study with the optional basement laundry.
Second Floor
The second floor is fun with views to the great room and atrium. It has two bedrooms and shared bath. With so many nooks, it's a child's and guest's dream. The abundance of walk-in, semi-conditioned eave storage areas will be appreciated by everyone.
A partial basement is designed with storage, mechanical, and laundry in mind to free up more of the first floor.
The optional detached garage with greenhouse is shown on the north with entry to the house across the screened porch. It could also be accessed from the laundry area or moved to any other location depending upon your views and preferences.
Construction Info
The basement and first floor have 11" ICF exterior walls. The roof slope has been steepened to allow for more sleeping nooks upstairs and shed dormers simplify roof construction. The first floor ceilings are similar to the Atrium house plan with a combination of vaulted and 9' heights. Upstairs ceilings are vaulted. The concrete floors and stone covered block walls in the south rooms provide thermal mass to minimize temperature swings in the great room, master bedroom, and especially the corner sunroom.
Modification Ideas
Since these ideas may affect energy performance and structural integrity, they should only be undertaken with professional assistance.
  • Add another bedroom upstairs over the great room
  • Modify the walls to be built with studs for affordability
  • Make a larger kitchen by expanding into the front porch and foyer and make bedroom 2 into a combination foyer/away room
Construction Drawings
For this plan, the following are included with Construction Prints and CAD Files:
  • Schematic Site Plan
  • Basement/Slab Combination Foundation Plan
  • Floor Plans
  • Exterior Elevations 
  • Building Section
  • Kitchen Elevations
  • Typical Wall Detail
  • Schematic Electrical Plans
  • Schematic Framing Plans
  • Garage Plans
Comments and Photos
Many Sun Plans designs are similar. Check out photos that other Atrium clients have sent.