Case Study House 23

Case Study House 23 (The Triad), San Diego: Visiting Hours, Tickets, and Historical Significance

Date: 14/06/2025

Introduction

Case Study House 23, known as “The Triad,” stands as a defining example of mid-century modern architecture in the scenic La Jolla neighborhood of San Diego. Conceived as part of the groundbreaking Case Study House Program, The Triad comprises three innovative homes (23A, 23B, and 23C) that showcase modernist ideals—open floor plans, modular construction, and seamless indoor-outdoor integration—tailored to Southern California’s climate and landscape. While primarily a private residential site, its exterior remains a point of interest for architecture enthusiasts, historians, and tourists, and ongoing preservation efforts ensure its continued cultural impact.

This comprehensive guide covers everything you need to know about visiting Case Study House 23: current visiting hours and ticketing information, accessibility, travel tips, nearby attractions, historical context, design features, preservation status, and the broader significance of this San Diego historic site.

For authoritative details, consult the San Diego Modernism Historic Context Statement, Los Angeles Conservancy’s Case Study Houses page, and the La Jolla Historical Society’s website.

Origins of the Case Study House Program
Case Study House 23: Design, Architecture, and Significance
Visiting Case Study House 23: Hours, Tickets, and Accessibility
Nearby Attractions and Events
Preservation Status and Recognition
Visitor Etiquette and FAQs
Visuals and Media
Conclusion and Call to Action
References and Further Reading

Origins of the Case Study House Program

Launched in 1945 by John Entenza, editor of Arts & Architecture magazine, the Case Study House Program aimed to address post-World War II housing shortages by commissioning leading architects to design affordable, efficient, and modern homes. Over two decades, the program produced 36 designs—25 of which were built—primarily in Southern California, profoundly shaping American residential architecture. (San Diego Modernism Historic Context Statement)

Case Study House 23: Design, Architecture, and Significance

Architectural Overview

Unlike the majority of Case Study Houses in Los Angeles County, Case Study House 23 brought the program’s philosophy to San Diego, specifically La Jolla, in 1960. Designed by Edward Killingsworth (with contributions from Kemper Nomland, Jr., Jules Brady, and Waugh Smith), The Triad consists of three distinct yet interconnected homes—23A, 23B, and 23C—arranged in a pinwheel configuration on a sloping one-acre site. Each residence features:

Open floor plans and expansive glass walls for maximum natural light
Post-and-beam construction using steel, glass, wood, and concrete
Flat or gently sloped roofs with deep overhangs for shading
Integrated landscaping by Garrett Eckbo, prioritizing drought-tolerant native plants
Modular and flexible spaces to accommodate diverse family needs and foster privacy

This design blurs the line between indoor and outdoor living, emphasizing functionality, privacy, and environmental harmony. These principles have influenced generations of architects and continue to inspire sustainable residential design worldwide. (Los Angeles Conservancy)

Visiting Case Study House 23: Hours, Tickets, and Accessibility

Current Status & Public Access

Case Study House 23 is a private residential complex and not open for regular public interior tours. Visitors are welcome to view the homes’ exteriors from public vantage points such as La Jolla Scenic Drive South. There are no set visiting hours or tickets required for exterior observation, but all visitors must respect residents’ privacy and property.

Guided Tours & Special Events: Occasionally, organizations such as the Los Angeles Conservancy, San Diego Modernism Week, or the La Jolla Historical Society arrange guided tours or open house events, typically with advance ticketing. For updates, check the LA Conservancy events page, San Diego Modernism Week, and La Jolla Historical Society.

Accessibility

Street viewing areas are accessible by car and on foot. The surrounding neighborhood is walkable, with limited street parking.
No dedicated visitor facilities (restrooms, ramps, etc.) are available at the site.
Wheelchair and stroller users can navigate public sidewalks, but should be aware of hilly terrain.
Contact local organizations for accessibility accommodations during special events.

Travel Tips

Best viewing times: Early mornings and late afternoons for beautiful lighting and photography.
Parking: Limited street parking; consider parking nearby and walking.
Respect: Maintain a quiet presence and avoid disturbing residents.
Photography: Permitted from public areas only—avoid photographing residents or entering private property.

Nearby Attractions and Events

Enhance your visit by exploring these nearby San Diego attractions:

Salk Institute: A modernist masterpiece by Louis Kahn.
Museum of Contemporary Art San Diego (La Jolla): Contemporary art in a modernist setting.
Torrey Pines State Natural Reserve: Stunning natural landscapes and hiking trails.
La Jolla Cove and Ellen Browning Scripps Park: Iconic coastal views and picnic spots.
The Marston House Museum: Craftsman-style architecture and gardens.

Check local listings and organization websites for special architectural tours or events during your visit. (San Diego Explorer)

Preservation Status and Recognition

National and State Designation

Case Study House 23C: Listed on the National Register of Historic Places in 2013, reflecting its exceptional integrity and historical significance.
Case Study House 23A: Eligible for National Register listing; protected under the California Environmental Quality Act (CEQA).
Case Study House 23B: Largely altered, no longer qualifies for historic designation. (San Diego Union-Tribune)

Future Preservation and Public Access

The Manno family, long-time stewards of 23C, have announced plans to bequeath the property to the La Jolla Historical Society, which promises expanded educational programming and increased public access. Updates on visiting hours and tours will be posted at La Jolla Historical Society.

Advocacy and Awards

The preservation of Case Study House 23C was championed by the Los Angeles Conservancy’s Modern Committee, earning the Governor’s Historic Preservation Award in 2013. (L.A. Conservancy)

Visitor Etiquette and Frequently Asked Questions (FAQs)

Etiquette

Always view from public streets unless participating in an organized tour.
Do not trespass on private property or disturb residents.
Check official sources for the latest updates on tours and accessibility.

FAQs

Q: Can I tour the interiors of Case Study House 23?
A: No, the homes are private. Occasional special tours may be arranged; check organizational websites for updates.

Q: Are there visiting hours or tickets required?
A: No regular hours or tickets are required for exterior viewing. Tickets are needed only for special tours or events.

Q: Is photography allowed?
A: Yes, exterior photography from public areas is permitted. Respect privacy at all times.

Q: Is the site accessible for people with disabilities?
A: Public sidewalks are accessible, but there are no dedicated visitor facilities. Contact organizers about accessibility for events.

Q: What are the best times to visit?
A: Early morning or late afternoon for optimal lighting and fewer crowds.

Visuals and Media

High-quality images and virtual tours are available through the Los Angeles Conservancy.
Map links and digital archives offer more insights into the site’s design.
For updates, follow San Diego Modernism Week and La Jolla Historical Society.

Conclusion and Call to Action

Case Study House 23 (The Triad) remains a cornerstone of San Diego’s architectural heritage, epitomizing the innovative spirit of the Case Study House Program and the enduring appeal of mid-century modern design. While regular interior access is limited, the homes’ exteriors and historical context are accessible to all from public vantage points. Ongoing preservation, led by the La Jolla Historical Society and advocacy groups, promises expanded educational opportunities and future public engagement.

To experience the legacy of Case Study House 23:

Visit La Jolla Scenic Drive South for exterior views.
Stay updated on special tour opportunities with the La Jolla Historical Society, Los Angeles Conservancy, and San Diego Modernism Week.
Download the Audiala app for guided tours and real-time updates.
Respect the privacy of residents and adhere to all preservation etiquette.
Explore nearby architectural and cultural sites to enrich your visit.

By supporting preservation efforts and engaging with San Diego’s modernist treasures, you help ensure that icons like The Triad continue to inspire future generations.