Urban DADU for a family

Location: Seattle, WA

Size: 1,000 sf

Type: Backyard cottage DADU & garage

Structural Engineer: Carissa Farkas

Lighting Designer: light can help you

Green Building certification: Swift Sure Energy

Interiors: Heather Dachary

Photography: John Caldwell

Builder: Owner & Rhodes Construction

BUILT, 2026

Located right up against an alley, this DADU & garage is for a family of four.

The design emphasized minimalism in style and content: we made the most with the least amount. How to fit 2.5 bath, 2 bedrooms in 1,000 sf was the biggest spatial challenge. Additionally, the design was constrained in its footprint and layout, as we reused an existing backyard studio.

This DADU is a typical example of an urban infill. Our challenge was to design to give the most privacy on the alley and the sides.

This DADU is a net zero building in terms of energy consumption. Passive house principles were incorporated into the design. We designed extra thick walls and roof assemblies and picked high performative mechanical systems.

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A trellis / observatory house