Miller Hull

The Newhouse Replacement Building (Newhouse) redefines the intersection of history and progress on Washington State’s historic Capitol Campus, creating a civic workplace where past meets present, state meets citizenry, and place meets policy. Designed as part of the Legislative Campus Modernization (LCM) initiative, the new structure honors the campus’s architectural legacy and historic significance while integrating contemporary sustainability, ecological stewardship, and functional efficiency to serve the state for generations.

Originally built in 1934 as a temporary structure, Newhouse became a critical part of the Capitol Campus but long outlived its intended use. Nearly 90 years later, it faced significant life-safety and seismic challenges that necessitated its replacement. Rather than demolish, Miller Hull embraced deconstruction, taking a sustainable approach to salvaging historic materials, locally sourced mass timber, and place-based storytelling within the new structure. The new design maintains architectural continuity with its neoclassical surroundings through form, geometry, and patterns of historic buildings, while incorporating contemporary solutions and materials that reflect Washington’s commitment to sustainability and resource stewardship.

LEED Platinum certified, Newhouse is a beacon of sustainable design. It is net-zero ready with a 90-kilowatt roof-mounted photovoltaic array, which accounts for 20% of the building’s energy demand. The all-electric design is exceptionally efficient, with an estimated energy use intensity of just 19, representing more than a 75% reduction compared to the baseline. Operable windows in every office enhance energy efficiency while providing natural ventilation, and a green roof elevates the views from the fourth floor while furthering the state’s commitment to environmental stewardship. The design team prioritized local vendors, trades, and materials, ensuring state funds were directed toward both Washington’s economy and its environmental priorities. Additionally, nearly all building materials, from exterior cladding to interior finishes, were sourced within the state.

Located in a region where timber is abundant, Newhouse showcases locally sourced Douglas Fir, one of Washington’s most valuable resources. Mass timber is central to the building’s low-carbon strategy, supporting both environmental responsibility and occupant well-being through its natural materials and biophilic qualities. Steel columns and beams are paired with Acoustic Dowel Laminated Timber (ADLT) floor decks, an innovative assembly of doweled wood members with acoustical insulation inserted into precision-milled grooves to enhance sound absorption. Newhouse establishes itself as the first known building that incorporates Fsorb, a formaldehyde-free acoustic insert which eliminates all known chemicals of concern used in traditional acoustic insulation within acoustic dowel laminated timber. Beyond avoiding these harmful chemicals, the assembly also delivers lower embodied carbon than typical concrete or steel floor systems, while using natural, rapidly renewable, and local materials to achieve high acoustic performance.

While the original Newhouse Building no longer stands, its legacy endures through carefully salvaged materials. Marble, sandstone, and interior glass panels from the 1934 structure have been repurposed in the new building, preserving a tangible connection to the past within a contemporary civic space.

Salvaged timber from the 1920s and ‘30s Carlyon and Ayer Press Houses—once home to the Capitol Press Corps—finds renewed purpose in the newly constructed building. Though relocation of these historic structures was unfeasible, their materials have been meticulously reintegrated, ensuring their stories remain part of the Capitol Campus’s evolving narrative.

Designed as a dynamic and functional workplace, Newhouse houses four stories of Senate suites, caucus offices, public meeting areas, and educational and collaborative spaces that introduce high school students to the legislative process. A flexible meeting space accommodates diverse community needs, further solidifying the building’s role as a civic resource.

A defining architectural feature, the four-story skylit stairwell—known as the “Mixing Chamber”—fosters collaboration and interaction among legislators, staff, and visitors. This central hub embodies the spirit of democratic governance, providing an open and inviting space for dialogue and idea exchange.

At the heart of the Mixing Chamber, a four-story art wall made from reclaimed Douglas fir timber from the Press Houses serves as a striking visual and conceptual focal point. The wall’s undulating forms represent Washington’s five primary landscapes—Water, the rolling hills of the Palouse, the arid expanses of the Plateau, Forests, and Mountains—creating a sculptural homage to the state’s natural beauty. Each panel was custom-milled to fit the design while retaining its raw, unfinished edges, preserving the timber’s historic character. As occupants ascend through the building, the landscape-inspired patterns shift and evolve, echoing the experience of moving through Washington’s diverse terrain.

Newhouse stands as a model for sustainable civic architecture, blending tradition with innovation to create a lasting legacy for the people of Washington. Through its careful integration of salvaged materials, mass timber, and community-centered design, the building represents not only the state’s architectural heritage but also its forward-thinking vision.

Project Team

Architect: The Miller Hull Partnership, LLP
Contractor: Hoffman Construction Company
Structural Engineer: Lund Opsahl
Civil Engineer: Reid Middleton
MEP Engineer: PAE Consulting Engineers
Landscape Architect: Murase Associates
Envelope Consultant: 4EA Building Science
Security Consultant: Hohbach-Lewin
Lighting Designer: Dark | Light 
Signage: Mayer Reed
Vertical Transportation Consultant: The Greenbusch Group
Transportation Consultant: Heffron Transportation
Acoustical Consultant: BRC Acoustics
Building Code Consultant: Pielow Consulting
Cost Consultant: JMB Consulting Group
Historic Preservation: BuildingWork