Seattle-Tacoma International Airport (SEA) | Concourse C Expansion Interiors - Woods Bagot

Project Role: Interior Designer & FF&E Lead (Shahrzad Razi)

Scope: Design Development, Material Selection, Custom Millwork, and FF&E Specification for public amenities.

Expanding a major airport concourse goes beyond adding square footage; it requires creating moments of respite within a high-stress environment. For the SEA-TAC C Concourse Expansion, Shahrzad Razi led the interior design and detailing for key passenger amenities, focusing on inclusivity and durability.

Inclusive Design Strategy: Moving beyond standard code compliance, the design integrates specialized spaces for neurodiverse travelers, including a Sensory Room and a Meditation Room. These quiet zones utilize acoustic wood paneling, dimmable LED lighting, and soft forms to reduce sensory overload.

High-Traffic Performance: The restroom and storefront designs prioritize operational longevity. We specified commercial-grade materials—quartz surfacing, porcelain tile, and tamper-resistant fixtures—that can withstand 24/7 passenger traffic while maintaining a boutique hospitality aesthetic.

A construction site with a large yellow crane and a building framework under construction.
View of airport gates with a large letter C sign and a flight information display board in the background.
Interior design of a meditation room at the Seattle Airport new C gate expansion. A woman sitting on a curved wooden bench inside a modern room with vertical wooden slats on the walls and black carpet flooring.
Code compliance and interior design for the Seattle Airport womens restroom.
Modern public restroom with white and wood accents, mirrors, sinks, soap dispensers, and women using the facilities.
Modern restroom with large mirrors and women waiting, some looking at their phones.
Interior of a modern waiting area with children and adults, featuring green and wood decor, curved walls, and circular wall art.
A modern waiting area with green and wooden design elements, including a green curved lounge chair and a wooden-paneled booth where a woman is sitting on the floor, and two children are seated on the furniture.
At the Pet Relief Room, a woman crouching next to a small grass patch with a golden retriever dog sitting on it in an indoor pet play area. The room has white brick walls and a decorative blue and black mosaic accent wall.