Aerial view of the Commons Estate: a square ring of four timber-and-plaster wings under one dark tile roof, wrapped around a courtyard garden with a red maple

The Commons Estate

A theory of shared living

Private by default, shared by design

The single-family house asks every household to buy, heat, roof and maintain a complete world of its own, most of it idle most of the day; co-living fixes the waste but spends privacy to do it. This design draws the line where privacy actually matters (where you sleep, cook, bathe, and the door you close) and pools everything on the other side. Four households keep complete homes, each facing outward to its own view and light, and share one roof, one foundation, one plot of land, and a courtyard garden none of them could justify alone.

Living area
≈ 8,900 sq ft
Garages
2 × 864 sq ft
Total under roof
≈ 10,700 sq ft
Open courtyard
≈ 6,300 sq ft
Cutaway model of the four wings around the courtyard, roof removed
  1. 01

    One complete home

    It starts as a single wing with everything a household needs.

  2. 02

    Four, side by side

    Repeated four times, the homes share walls instead of duplicating them.

  3. 03

    The commons

    The space they enclose becomes the garden none of them could have alone.

  4. 04

    One roof

    A single roof covers all four homes: one envelope to build, insulate and maintain.

  5. 05

    Apart, together

    Private on the outside, shared on the inside.

Quadrilateral Design

Hover or tap a wing to see what each household keeps. The only room they share is the one without a roof.

Full build: ≈ 118′ × 129′ main block, 22′-deep wings, ≈ 74′ × 85′ courtyard. The two southern wings each have a 24′ × 36′ three-car garage.

縁側

Privacy as a dial

The engawa runs behind sliding screens on every courtyard edge. Closed, it's a hallway. Open, it's a porch on the commons. Each family decides, hour by hour, how much of the shared life it lets in.

内 · 外

Turned outward, gathered inward

The private rooms face away from the neighbours, toward each family's own land. The shared room faces in. You never look into another home to reach the garden.

玄関

One arrival

Everyone comes through the same gate and crosses the same garden before reaching their own door. That daily walk is the only obligation the house imposes, and it's where community happens by default.

庭

A commons none could afford alone

A 74 × 85 ft garden is a luxury for one family and an easy share for four. Pooling the land is what makes it possible.

Views

Afternoon aerial from the south-west Afternoon, from the south-west Courtyard at eye level: raked gravel, moss islands, stepping stones and shoji walls The niwa Courtyard at dusk with the shoji glowing The niwa at dusk Aerial at dusk from the south-east, windows and shoji lit Dusk, from the south-east Approach to the south entry along a stone path Genkan, the shared entry Roofless cutaway showing every room of the four wings Cutaway

Drawing set

The build in seven sheets, in the order it would go up. Each sheet shows earlier phases faintly and draws the new work for that phase in full.

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