Hopper Design, LLC


Toward Healthy and Sustainable Homes

Designs - Solar Cabin 24x28

2 bedrooms, 1 bathroom

 Download plans: $175.00

Cabin footprint 24' x 28' (total 810 square feet)
First floor is 662 square feet and the loft is 148 square feet.

This Solar Cabin has its entrance at the east corner. There are two bedrooms with the master bedroom on the first floor. A loft bedroom study on the second floor is reached by built-in ladder. The house has one bathroom off the master bedroom.

This south-facing cabin is set into the land with earth berming providing a friendly human scale. It is compactly designed for efficient use of space and is economical to build, substantially lowering construction costs. These features allow reduction of non-renewable energy needs, making it possible to achieve net zero energy usage. This cabin provides all essential living needs conveniently on the first floor, making it suitable for folks of all ages. While it is very compact in plan, it looks and feels spacious and friendly.

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View of south and west elevations at 11 a.m. in mid-October.

The south facade has substantial glazing to allow passive solar gain in winter. It can be seen in the figure above that solar energy is entering the house in the fall, passively heating the home. We place active solar thermal and solar electric systems on the south roof. These systems can be added at a later date.

The living, dining, and kitchen are open above to the roof with a high ceiling. These areas feel and appear spacious. The pullman kitchen is highly functional and faces east for morning light. The kitchen is set off by a wall common with the living area to help define these spaces. The kitchen is directly accessible from the entrance and dining.

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Solar Cabin first floor plan showing entries, kitchen, dining, living, master bedroom, bathroom, closets, and utility.

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Solar Cabin second floor plan showing loft bedroom study and landing with ladder access. The first floor is in view below.

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Entrance view from northeast.

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Site Plan with drive entries possible from northwest through east to southwest.

Two active solar designs

The roof of the Solar Cabin can support a variety of active solar systems. Two options are shown below.

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View of the south and east elevations with a 4.6 kWh photovoltaic array and three thermal collectors for domestic hot water.

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View of the south and east elevations with a 3.4 kWh photovoltaic array and nine thermal collectors for domestic hot water and space heating.

More images

Interior views stretched to include items of interest.
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View looking southeast through living and dining. Kitchen entrance is on the left. An optional wood stove can provide supplemental heating in winter.

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View to northeast of dining with kitchen beyond.

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View from entry looking south into kitchen and living.

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View of master bedroom with entry to walk-in closet and bathroom.

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View of loft bedroom study.

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View of Solar Cabin on June 21 at 11 a.m., summer solstice. Note how well the south windows are shaded from excess solar energy.

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View of Solar Cabin on December 21 at 11 a.m., winter solstice. Note how well the south windows allow passive solar energy into the home.