Spiral 2 House

Owen Geiger, Designer

South Elevation

Spiral 2 is a variation of my first spiral house – Spiral House. This unique, almost Hobbit-like earth-sheltered spiral design includes a large grow bed, exposed timber ceiling and living roof. Ample light is provided by the window wall next to the grow bed, window and door glazing, and suntubes. Distinguishing features include two bedrooms, masonry two-way fireplace, covered porch and cool pantry for storage of food (no electricity required for refrigeration). An alternate roof plan is available for building with TJIs where wood poles are not available. There’s even a door planned in for future expansion. This home meets zero energy standards.

740 sq. ft. interior, 2 bedroom, 1 bath; footprint: 31′ x 40′ plus buttresses and covered porch.

Floor Plan

The Plans for Sale

These plans are available as digital PDF files or AutoCAD files and are offered by Dr. Owen Geiger as complete and ready to build from. They include necessary elevations, floorplans, cross section details, and other significant construction details; they don’t show every view, every detail — just enough to build. They do not include electrical and plumbing details. The section views explain how everything goes together and should answer your questions about materials. The plans are scaled and dimensioned.

It is the buyer’s responsibility to find out special requirements, such as what alternative building is allowed in your county or what you have to do to get houses permitted. Are there special requirements for foundations, etc.? Do they require an engineer or architect to stamp the plans? It might be a good idea to know these things before ordering plans.

The AutoCAD version is the same as the PDF version, just in a format that can be read by AutoCAD software or other software that reads .dwg files. We recommend buying the AutoCAD version if you plan to have a professional architect or engineer read or make changes to the plan. This may be necessary in some jurisdictions that require state-licensed architects or engineers to stamp plans before they will be acceptable. Or if you want another professional to make some custom changes to Owen’s stock plans, then AutoCAD version may be the way to¬† go. If you would like both the PDF and the AutoCAD versions, then just indicate this when you purchase the AutoCAD version and they both will be sent for the price of the AutoCAD file.

This plan is offered with a free copy of Owen’s popular Earthbag Building Guide e-book.


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PDF Digital Plans
(computer renderings)


AutoCAD files

2 thoughts on “Spiral 2 House”

  1. This Spiral 2 house design is interesting. My question is concerning the roof structure and if you have pictures or diagram illustrating same. I have conventional house building experience but I am now retired and would be building completely on my own.Thus I am concerned about roof design.

    Thanks for your time,
    Regards Tom Dickson

    • Yes, there is a roof detail drawing that shows the basic construction. You’d need timbers of various lengths and enough workers to move them into position.


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