The renovation of The Frick Collection reimagines the historic institution for the 21st century. The lighting design brings coherence and refinement to galleries, gardens, and new public spaces. Integrating natural and electrical light, the scheme preserves the intimacy of the original Gilded Age interiors while supporting the museum’s expanded programming in education, conservation, and exhibitions. From carefully adapted historic chandeliers to new laylight systems and custom accent lighting, the approach is quietly transformative—heightening material presence, protecting artworks, and enriching the visitor experience with technical precision and visual restraint. The approach balances innovation with restraint. All light sources were reconsidered: historic fixtures were carefully adapted to accommodate LED technology, and new systems were delicately integrated into the fabric of the building. Guided by a philosophy of subtle intervention, a layered strategy enhances architectural details and materiality without disrupting the domestic scale or historic character of the spaces. Natural and artificial light were harmonized to support both art display and visitor experience. In the skylit East, Oval, and West Galleries, a new laylight system redirects sunrays parallel to the floor surface, preventing glare on paintings through a honeycomb interlayer. A secondary system of LED fixtures, concealed in the skylight attic, maintains consistent light levels during cloudy conditions and throughout the day. Additional art illumination is provided by accent lighting integrated into the underside of the laylight mullions. In the Garden Court, discreet miniature spotlights were added to restored historic lanterns to illuminate sculptures in niches that were previously in shadow. New miniature LED accent lights were also integrated into most of the refurbished historic chandeliers in the second-floor galleries—spaces previously closed to the public and now repurposed as exhibition areas. Across the museum, color temperature and light consistency were recalibrated to bridge the intimate atmosphere of the Gilded Age residence with the demands of contemporary exhibition. Custom picture lighting was developed in collaboration with conservators to optimize spectral output for both conservation and display. Decorative fixtures—such as bronze and Murano glass lanterns in the reception hall—were tuned to preserve a warm, residential ambiance. Sconces along the new blue Breccia Aurora marble stair softly emphasize the stone’s texture and tone. Lighting also reinforces the museum’s new program areas. In the lower-level auditorium, integrated base lighting emphasizes the curved, hand-plastered surfaces and enhances the immersive quality of the space. A suspended rig provides zoned illumination for the audience while minimizing visual impact on the architectural volume. The anteroom features a striking graphic fixture, with textured Murano glass panels backlit by a recessed ceiling slot, tracing the plan of the original circular music room on the ground level. In education, conservation, and administrative areas, lighting prioritizes glare control, high efficacy, and flexibility, while remaining in harmony with the architecture and finishes. Pendant fixtures with up- and downlight distribution, task-integrated casework lighting, and daylight access allow these spaces to meet varied needs. Overall, the system improves energy performance and supports LEED goals, while ensuring a seamless visual transition across historic and new spaces.