The Observatory Sun Valley, a Viceroy Resort

Recent construction milestones include:

• The entire building has been fully topped out
• All major concrete structural work, including walls, decks, and elevator shafts, has been completed
• Steel stair installation to the rooftop has been completed
• Exterior siding is nearing completion
• Stonework is now more than 50% complete
• Exterior window and patio door installation has been completed
• The signature planetarium dome has been installed
• Roofing work is nearing completion
• Major mechanical, plumbing, electrical, and fire sprinkler systems have been installed
• Interior tile flooring, cabinetry, hardwood flooring, and bathroom finishes are actively progressing throughout hotel units and common areas
• Drywall finishing and painting of hallways and shared spaces are ongoing
• Elevator doors have been installed throughout the building

• Interior columns, exterior concrete walls, interior concrete walls, decks, and elevator shafts have been poured
• The installation of the structural steel for the penthouse is complete
• The roof is complete
• The steel stairs are complete to the rooftop
• A majority of the exterior metal siding is installed
• Windows and doors are installed
• Waterproofing is installed
• The planetarium dome is complete
• Installation of the overhead plumbing, fire sprinkler, and light fixtures is complete on multiple levels
• Plumbing, electrical rough, and HVAC work are nearing completion
• Interior wall framing and drywall installation are in progress

• Approximately 47% of construction are complete.
• The concrete decks were poured to the top floor. All interior columns, exterior concrete walls, interior concrete walls and elevator shafts have been poured.
• The installation of the structural steel for the penthouse was in progress through the steel and metal deck.
• Level P2: The installation of the overhead plumbing, fire sprinkler and light fixtures was complete. The hot water heater boilers and storage tanks were set. The main HVAC return ducts were on site.
• Level P1: The installation of the overhead plumbing, fire sprinkler and light fixtures was complete. The electrical switchgear was set.
• Level 0: The metal stud framing was complete at the exterior. Plumbing top out was in progress.
• Level 1: The metal stud framing was complete to 30% at the exterior. Plumbing top out was in progress with the waste and vents in place and the water lines in progress. Condensate lines were installed.
• Level 3 interior stairs were in progress at one of the two stairways.
• Level 4: the fan coils were installed to 50%.
• Level 5: Penthouse steel was installed.

• Subcontractor trades on site during Q1 2025 include electrical, concrete, rebar, plumbing, mechanical, waterproofing, steel, and general labor.
• Post-tension cable and rebar placement are in progress on multiple levels.
• Staircase erection is in progress.
• Shoring is in place.
• The concrete is complete through the grade level and ramp to the basement. The first-floor deck and second floor deck concrete are poured.
• The columns and interior shear walls are poured to the third floor.

Electrical work has also commenced, with two temporary transformers installed on the east side of the site. Additionally, 40% of the formwork is now in place, and backfilling activities are progressing on the east side. These updates highlight the steady momentum of the project as it moves closer to completion.