Supra-Simplicities Builds a Modular Steel House for a Retired Mother at the End of a Kaohsiung Alley

MOM House sits at the dead end of a narrow alley in Kaohsiung, southern Taiwan. Neighboring houses and a school wall enclose it on three sides, and a single route leads in. The site previously held an aging two-storey reinforced concrete dwelling. Supra-Simplicities, with lead architect Han Kuo and interior collaborator KCCS, replaced it with a 240 m² house for a retired mother. The new house also has room for her two adult children when they come home.

The interesting part is not the program. It is the attitude toward time. The house is built on a prefabricated steel grid the architects call the Modularized Open Model. Eight modules run along a linear axis, and one bay is held back for utilities and future growth. Most family houses are designed for the family as it exists on move-in day. This one assumes the household will change, and treats the structure as a frame that can be added to or rearranged rather than a finished object.

A Dead-End Site That Turns Out to Have a View

From the alley, the site has nothing going for it: little daylight, poor cross ventilation, and walls on three sides. From the air, the picture changes. One of those enclosing edges is a school sports field, with a red running track and blue basketball courts. Beyond it are apartment towers, held back by all that open ground.

The architects treat that field as the project's main environmental asset, and we think that reading is correct. You cannot own the view, but you can organize a house around it. The grey upper volume looks over the yellow school wall like a neighbor leaning on a fence. The glazed lower floors, lit at dusk, give something back to the field they borrow from.

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