Rainwater Towers Apartments (click to enlarge)

Rainwater Towers Apartments (click to enlarge)

Specifications: Three 16′ interior diameter roundhouses, total 660 sq. ft. interior, one bedroom, one bath, Footprint: 39′ x 43′

Description: This three-story, triple roundhouse tower apartment complex is designed to provide affordable housing in urban areas. The towers are primarily earthen construction. Made with earthbag tubes filled with earth and tamped solid, very few manufactured/processed materials are required. This greatly reduces construction costs. The apartment name comes from the fact rainwater is captured on the roof and directed to underground cisterns, which reduces demand on city water supplies. Each apartment is accessible by a spiral staircase in the front tower. Features include spacious 201 sq. ft. bedroom with large closet, modern kitchen and comfortable living room. All rooms are round to create an embracing, inviting ambience. The round towers are naturally stable and form a visually striking exterior.

Rainwater Towers Apartments floorplan (click to enlarge)

Rainwater Towers Apartments floorplan (click to enlarge)

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Rainwater Towers Apartments — 12 Comments

  1. It’s easy to maintain plumb, cylindrical shapes simply by using a center pole (steel pipe, etc.) in the middle of each tower and regularly measuring the radius. If the center poles remain plumb then the towers will be plumb. Tip: attach braces between tops of center poles so they reinforce each other.

    Rent a lift of some sorts to hoist soil and other materials up on the wall. Save plaster work and plaster by tamping earthbag walls flat every 2-3 courses before the soil dries.

  2. The one thing that jumps out at me immediately is “oh, boy, I have to get the sofa up 2 flights of *spiral* stairs?!?!” That’s less of a problem in a house, where furniture can be expected to stay put for decades or more. But an apartment by its very nature is going to have higher occupant turnover.

    Perhaps a large window or glass door, with a hayloft-style projecting block and tackle? :-)

  3. Owen,
    This Rainwater Towers is very exciting edifice to build in Ghana, but the number of rooms if can be two would be a laudable idea.
    Peter N. Steele

    • Thanks. It would be easy to change the number of towers. If this concept catches on, I may design several designs with multiple towers. Most people in the world live in cities, so it makes sense to have at least some designs for urban areas.

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