This spring, Board & Vellum is moving to Seattle’s iconic Smith Tower in Pioneer Square. Learn more.

Our dadus & accessory structures services.

Backyard Cottage Design – DADU Design – Accessory Structures Design – Backyard Reading Retreat – Board & Vellum – Architecture, Interior Design, Landscape Architecture

Accessory Structures

Accessory structures can help you make the most of your property — adding functional space for a variety of needs in a small package. Our multidisciplinary team loves solving the unique challenges of designing ADUs and outbuildings of all shapes, sizes, and scopes.

Learn more.

Our dadus & accessory structures portfolio projects.

An architectural rendering showing the overall scope of a large property refresh, including a garage, DADU with a guest suite, gym, and library, outdoor kitchen and garden, and landscape upgrades. Board & Vellum — Redmond Property Refresh
On the Boards
A Suite of Outbuildings & Outdoor Kitchen

Redmond Retreat for Entertaining

An expansive property updated with highly-customized outbuildings complementary to the main home.

Backyard Cottage Design – DADU Design – Accessory Structures Design – Backyard Reading Retreat – Board & Vellum – Architecture, Interior Design, Landscape Architecture
Transforming an Overgrown Backyard

Backyard Reading Retreat

This backyard and petite shed form an urban oasis: the perfect place to relax and recharge in the busy city with a great book.

On the Boards
An Outbuilding Tailored for Artistic Pursuits

Modern Music Studio

This compact accessory structure accommodates a working recording studio and performance space.

A Sustainability-Minded DADU with a View

Net Carbon DADU

Guided by sustainable principles from the foundation to the finishes, this DADU is estimated to be carbon negative.

Backyard Artist Studio – Board & Vellum
16x9-backyard_artist_studio-exterior-view_1-day

Backyard Artist Studio | Photo by Meghan Montgomery

Relaxing Creative Spaces in a Backyard Oasis

Backyard Artist Studio

The addition of a new yoga and artist studio shines in a flourishing backyard with organic siting, playful materials, and creative details.

Capitol Hill Landscape – Capitol Hill Craftsman – Board & Vellum
Site Design & Landscape Architecture

Capitol Hill Craftsman Landscape Design

Crisp, new walkways and plantings, along with a great-looking bike shed, help this home feel anchored in its yard.

Would you like to learn a little more about us?

We’re pleased you’re interested. Explore more about us and our work via the pages below.

About Seattle architecture firm Board & Vellum – Board & Vellum's portfolio includes architecture, interior design, and landscape architecture projects.

Our Story

Client-centered authenticity is our north star, and we continue to prove that great design doesn’t require great ego.

Accessory Structures

Accessory structures can help you make the most of your property — adding functional space for a variety of needs in a small package. Our multidisciplinary team loves solving the unique challenges of designing ADUs and outbuildings of all shapes, sizes, and scopes.

Learn more about Board & Vellum

Considering a project, or curious about something?

Say hello, and send us your questions via the form below. We’re always pleased to make new connections, and eager to get to know you, your project, and your goals.

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