Modern Glass Pavilion Added to Portland Art Museum
The glass-clad connector revitalizes visitor experience between historic buildings.
1New Museum Landmark
The Portland Art Museum unveiled its 24,000 sq ft Mark Rothko Pavilion, a glass-walled structure bridging the 1932 Belluschi Building and the 1926 Masonic Temple-turned-Mark Building. Serving as the new main entry, the pavilion integrates previously disconnected east and west plazas showcasing the museum's sculpture collection. Its design resolves decades of circulation challenges while adding 30% more public space to the downtown campus.
2Dialogue Between Eras
The pavilion's metal-mullioned glazing and white ceramic frit pay homage to the Belluschi Building's travertine details and the Mark Building's vertical elements. Architects describe it as "a crystalline contemporary form projecting modernist character while respecting historic partners." Interior materials like white oak flooring and granite pavers maintain visual continuity with a restrained palette that puts art at the forefront.
3Community-Focused Spaces
At ground level, the free-access Community Commons invites public gathering, while a sculpted breezeway offers sheltered gallery views to pedestrians. Upper terraces frame views of Portland's skyline and the 12-block South Park greenway. The $111M project also renovated the museum store, café, and education spaces, with 15% improved energy efficiency targeting LEED Gold certification.
4Art-Centric Renovations
Renovations included refreshing traditional galleries in the Belluschi Building and adding a new upper-level gallery. The team converted the Mark Building's 2,700 sq ft library into contemporary exhibition space while simplifying existing galleries. "Every decision prioritized art experience," noted architects. The project also added crucial back-of-house facilities like a new loading dock to support larger exhibitions.
5Oregon's Cultural Investment
This expansion represents one of Oregon's most significant arts capital investments, solving decades-old accessibility issues. The revitalized campus strengthens the museum's role as a downtown cultural beacon while better connecting to its urban context. Museum director calls it "not just physical expansion but a redefinition of how art engages with public space in Portland."
6Architectural Collaboration
Portland's Hennebery Eddy Architects and Chicago's Vinci Hamp Architects led a team of 20+ designers. Mortenson Construction executed the complex build between operational museum wings. KPFF handled structural engineering, while Interface Engineering managed mechanical systems. Facade consultant Studio NYL developed the glazing system that achieves 30% better thermal performance than code requirements.
7Portland's Cultural Infrastructure
This project joins recent civic investments like Hennebery Eddy's supermarket-to-library conversion and ZGF's mass-timber airport expansion. The city continues leveraging architecture to enhance livability, with cultural facilities receiving 40% more visitor traffic post-pandemic. The museum expansion is projected to increase annual attendance by 25%, contributing $8M to local economy.
8Preservation Meets Innovation
The project sets a benchmark for adapting historic structures, balancing preservation of Pietro Belluschi's modernist masterpiece with contemporary needs. The pavilion's setbacks and angular forms create visual dialogue between eras. "This isn't just about adding space," says the design team, "but creating architectural connections that will serve Portland's cultural life for the next century."