
Construction Updates

Stay informed about our campus modernization (updated 9/4/26)
Construction on Phase 1, the underground parking garage, is officially complete, and we have launched the construction of our new state-of-the-art learning spaces! During this final phase of our campus modernization, most of our classes and special programs, like Gatorbotics and ACE, are taking place in Casti Village now.
Meanwhile, the Gunn Family Administration Building, the Elizabeth Hughes Chapel Theater, and the Joan Z. Lonergan Fitness Center will remain open to support athletics, the performing arts, the academic program, and the student experience. Students will be able to watch the progress on our new spaces from the Circle on the second-floor deck, and you can scroll down on this page to stay up to date as well. If you have questions, please email cfo.newcampus@castilleja.org.
Our Campus Modernization
CONSTRUCTION UPDATE: DECONSTRUCTION OF RHOADES HALL AND THE ARRILLAGA FAMILY CAMPUS CENTER ARE NOW COMPLETE (Update from 9/4/26)
By Wednesday of this week, all of the Middle School and the science classrooms had been down, as well as the Library and all of the classrooms and offices above it. And by Friday, there were only traces left of the Dining Room. The same excavators that just took the building down are now turning their attention to the next phase, sorting all of the debris, which also happens quickly but usually takes a bit longer than actually knocking the structures down. When that is finished, they will begin grading the surface to prepare for creating a new foundation.
At the same time, soft demolition and salvaging continued in the Ely Fine Arts Building, with the team pulling the layers of the roof away while removing non-load-bearing walls and salvaging wood and metal for reuse.



CONSTRUCTION UPDATE: DECONSTRUCTION CONTINUES AT A RAPID RATE (Update from 8/28/26)
We were told that this part would move quickly, and it has! Within one week, Rhoades Hall was taken down to its foundation. On that side of campus, the team is now focused on sorting the remaining piles into metal, wiring, and pulverized concrete to prepare for removal. Meanwhile, the Middle School and science classrooms and office came down in a matter of days. The team is now moving through the same process with the Arrillaga Campus Center. The top layer of roofing has been peeled off and soft demolition. pulling out the non-load bearing walls, metal framing, and wiring, is nearly complete. Sections of that building are already coming down.



CONSTRUCTION UPDATE: DECONSTRUCTION IS UNDERWAY (Update from 8/21/26)
Deconstruction is underway and things are moving very quickly. Earlier this week, the team began with peeling the top layer of roofing off of Rhoades Hall and pulling down full sections of the underlayer as well. Meanwhile on the first and second floors, Bobcats (compact mini-excavators) continued with soft demolition by pulling out the non-load bearing walls, metal framing, and wiring. The Circle now has three large excavators onsite that will work in tandem to keep moving ahead as quickly as possible. By Wednesday, The Middle School Lobby and Middle School classrooms had been hollowed out into one open space, and by the end of the week, the center of Rhoades Hall had been completely demolished. Tree relocation is nearly complete with three from beside the pool moving to Morgan Hill this week.






CONSTRUCTION UPDATE: LEED PLATINUM AND MORE WALLS COME DOWN (Update from 8/13/26)
Our modernized campus will be LEED Platinum Certified, which is the highest level of green certification awarded to buildings and projects that achieve exceptional sustainability and energy efficiency. When complete, our new campus will generate energy for daily operations through on-site solar and heat recovery and conserve water through high-efficiency systems, recycling infrastructure, and drought-resistant native landscaping. However, the work that goes into achieving LEED Platinum certification is already underway: there are pallets of carpeting for recycling and doors and cabinets for reuse that will be shipped out in the coming days. Meanwhile, walls continue to come down. Mrs. Zappas’ office is now open to the air, and the library is open from the Circle through to the Kellogg driveway.



CONSTRUCTION UPDATE: THE WALLS ARE COMING DOWN (Update from 8/7/26)
If you’ve walked along Kellogg Avenue lately, you may have noticed that there’s now an unobstructed view into what used to be classrooms and offices on the second and third floors. In addition to removing doors and windows, the construction team has begun to pull away sections of the facade of the Arrillaga Family Campus Center. Inside the perimeter fencing, the same process is taking place with the Ely Fine Arts Building. The external wall of the studio classrooms and the Choral Room has been taken down and that building, leaving those spaces open as well. Meanwhile, the team is continuing to package materials for removal—including palettes of carpeting and bins of metal that will be recycled. Heavy equipment is in use in every corner of campus at this point, as different subsets of the construction team work in tandem to keep various efforts moving forward at the same time.



CONSTRUCTION UPDATE: THE SALVAGING PROCESS IS NEARLY COMPLETE, AND TREES ARE
RELOCATED (Update from 7/31/26)
In recent weeks, the team has completed the salvaging process, pulling everything from lumber, fencing, and sinks to lab islands, projectors, and screens to send to other projects around the Bay Area for reuse.
Meanwhile, the windows and doors have been removed from Rhoades Hall, including our beloved Green Doors, which will go into storage until they are installed along the Bryant Street entry on our modernized campus. Most of the windows and doors in the Arrillaga Family Campus Center have also been removed, and there are roughly 40 people carrying this process forward to begin the next step, the larger-scale deconstruction of both buildings.
All but three of the trees from the Palm Patio have been moved off-site to a tree relocation facility in Morgan Hill, where they will stay until the new patio space is ready for them to be replanted. Other smaller trees around campus are going to the same tree farm for safekeeping as well.



CONSTRUCTION UPDATE: CONSTRUCTION PROGRESS AND SUMMER ACTIVITY ACROSS CASTI VILLAGE (Update from 6/25/26)
With the external fence around the outside of our old academic spaces complete, the Circle has officially become a “hard-had zone!” The patio beside the gym has been leveled to make space for the kitchen modulars, which arrived on Tuesday. Meanwhile the construction team is also working on the first stages of the deconstruction by salvaging elements like lighting fixtures, plumbing, cabinetry and refrigeration units to be reused elsewhere. This careful process will allow us to reach LEED Platinum sustainability certification for our new campus.
Meanwhile, Casti Village is filled with activity as we enter the second week of Casti Camp and the first week of Peninsula Bridge. Classrooms on the first and second floors are now in use; fresh lunch is being served daily; and pick up and drop off are happening underground. The Casti Village Circle on the second floor deck is in constant use for everything from singalongs to juggling classes. Students are in the library researching countries playing in the World Cup. And a time-tested favorite activity—making friendship bracelets—is still a favorite. Meanwhile, employees who work year-round are beginning to move into their new offices—both in the Gunn Building and in Casti Village.

The work has begun on the Circle

Mastering juggling on the Casti Village Circle

The fence is up around our campus

Classrooms are abuzz with activity in Casti Village

The modular kitchen is now in place beside the gym

Students strike a pose in Casti Village
CONSTRUCTION UPDATE: GUNN ADMIN LOT REOPENS FOR VISITOR PARKING; CASTI VILLAGE GETS OUTDOOR EV CHARGERS (Update from 5/15/26)
A few big updates from the entrance to campus: The lot in front of the Gunn Administration Building is open for visitors parking again. Also, with the construction fences down, our seniors were able to take their college sweatshirt photo on the front steps. Meanwhile, behind the scenes, the Truebeck team and our Castilleja Maintenance and Buildings & Grounds teams are working in tandem to continue to prepare for the year to come. Inside Casti Village, they are installing weatherproofing blinds that will shield us from both rain and heat when we walk down the halls; checking the AC units, vents, and outlets; and adding landscaping and flowers. And around the edges, they are securing the entrance gates and installing four outdoor EV charging stations for Castilleja shuttles near the Emerson Street entrance. Next time you stop by campus, keep an eye out for some of these changes. With the pots outside the Gunn Administration Building once again planted with red and white impatiens, we are ready for Promotion and Commencement. Castilleja spirit is in full bloom!



CONSTRUCTION UPDATE: CASTI VILLAGE CLASSROOMS HAVE SIGNS, LANDSCAPING IN PROGRESS (Update from 5/8/26)
With the construction fence around the Admin Building now completely gone, we’re beginning to beautify Casti Village! The construction team has put in mulch by the Admin Building entrance, and now our own Buildings & Grounds team is working on landscaping. They’ve begun clearing the shrubs and stumps that accumulated by the Admin Building entrance while it was fenced off for the garage construction. They’ve brought in potted palms to the second floor decking of Casti Village. Castilleja also has a landscaping design plan in place: over the summer, we will relocate our beautiful greenery from our current campus to Casti Village, both in pots and replanted in new soil. Be on the lookout for our succulents, agapanthus (Lily of the Nile), Bird of Paradise, roses, camelias, and ferns as they make their way over to Casti Village after graduation! Meanwhile, Casti Village is beginning to look more and more like a campus because this week, the team put room number and name plates on the classroom doors, from Upper School Hub to College Counseling, Library, and more.



CONSTRUCTION UPDATE: WORK ON CASTI VILLAGE IS SHIFTING GEARS (Update from 5/1/26)
Now that the Casti Village construction is in the final stages, the faculty were able to visit in small groups to get a sense of the spaces where they will be teaching for the next two years. They toured the community spaces like the Middle School Hub, which will serve largely the same role that the Middle School Lobby serves now, and the Upper School Hub, which will be new because we don’t have a space like that on our current campus. The first floor also has shared Community Meeting Spaces, which will be reserved for indoor dining during Middle School and Upper School lunch. Of course, we imagine that students will continue to find places to eat outside as well.



CONSTRUCTION UPDATE: CASTI VILLAGE GETS FINAL TOUCHES (Update from 4/24/26)
You know that if you are working on the punch list, you are nearing the finish line! This week, the team was ticking things off the list: installing paper towel and soap dispensers in the bathrooms, touching up paint scratches, testing the wiring, and more. The first-floor art studios and science rooms are outfitted with all of the equipment needed to support our full program, and the makerspace and robotics lab are being built to meet the goals of Ms. Rigby and Mr. Gallo. There are Middle School and Upper School Hubs for gathering, and specific community spaces will be designated for dining during Middle School and Upper School lunch. Also, students can enjoy lunch in different outdoor spaces around campus. One more thing: the campus is not complete without student art! The crew left multiple shear walls for the students to decorate and make Casti Village their own!



CONSTRUCTION UPDATE: The big news this week: There's turf upstairs and downstairs, and it's ready for lounging, studying, snacking. (Update from 4/17/26)
But take your time getting there. If you enter Casti Village through the Emerson Street gate, now flanked by brick pilasters, you can walk down the wooden walkways treated with stain. If you’re the first one there, the motion-sensitive lights may wake up as you go. There are classrooms on either side, along with those turfed spaces to relax, and they are now ready for us to move in! You’ll also pass by the lift, now fully operational and inspected, along with an access ramp. You’ll also see the elevator leading down to the parking garage. Then, as you make your way up to the second floor, you’ll pass by more classrooms and a large outdoor deck, also covered with green turf. And there you have it, a brief tour of Casti Village! All that remains are a few more paint strokes and a punch list inspection, and we’re almost there!



LOGISTICS AND HELPFUL INFORMATION
- Campus Visitors
- Student Pick-Up and Drop-Off
- Pedestrians and Cyclists
- Lane Closures
- Fencing
- Trucks
- Noise
- Dust
- Security
- CONSTRUCTION SITE MAP
- Looking for more details?