As quoted in the Presidio Sentinel, Barry Hager, advisory director and co-founder of Mission Hills Heritage, said, "In 20 years, we've never focused exclusively on this important genre. It's time."

He's talking about midcentury modern architecture, and the comment highlights a new focus for this year's tour. Mission Hills Heritage has run a Historic Home Tour every year for nearly two decades. Every one of those tours has leaned on the same architectural shorthand the neighborhood uses for itself: Craftsman bungalows, Spanish Colonial Revival, the George Marston-era streetcar suburb platted between 1907 and the 1930s. As Hoodline reported, the September 26 tour, the event's 19th annual edition, is devoted to midcentury modern architecture and features work by Lloyd Ruocco, Homer Delawie, and Frederick Liebhardt.

This year's tour highlights a part of the neighborhood's architectural record that has not been the focus of the annual Historic Home Tour.

Midcentury Architects Featured on the Tour

Lloyd Ruocco is not a footnote. He graduated from UC Berkeley in 1933, co-founded San Diego's Design Center on Fifth Avenue in 1949, and helped start Citizens Coordinate for Century 3, a civic planning organization that shaped how the city argued about growth for decades. Homer Delawie apprenticed under him before opening his own firm in 1962, then went on to design Balboa Park's Bea Evenson Fountain and SeaWorld's Penguin Exhibit, the kind of civic commissions that put an architect's name on structures most San Diegans have visited without ever asking who built them.

Frederick Liebhardt rounds out the trio the tour is built around this year. Together, their work in Mission Hills represents one of the region's largest concentrations of midcentury design, tucked into the same canyon lots and hillside streets that make the neighborhood's Craftsman stock so photogenic. Their work adds an important midcentury chapter to Mission Hills' architectural history.

What Actually Changes on September 26

The tour is self-guided, running 10 a.m. to 4 p.m., with registration starting at Mission Hills United Methodist Church at 4044 Lark Street. Coffee and vendor displays open the morning, wristbands get scanned at each stop, and staggered entry times spread the crowd across the route instead of bunching it at any single address.

The property drawing the most attention is the Robertson House, a Ruocco design now owned by a local school, opening to the public for the first time in the tour's 19-year history. Visitors are encouraged to save it for last. Inside is a midcentury furniture exhibit with pieces by Eames and John Lloyd Wright, alongside paintings by San Diego modernist Richard Marks, plus refreshments for anyone who's spent the day walking canyon-rim streets.

Docents are posted at every property to explain the architectural reasoning behind each design choice, not just recite square footage. The route also includes a home organized around a lush interior courtyard and at least one property terraced directly into the canyon topography that makes this style of building genuinely difficult to pull off anywhere else in the city. Classic Thunderbirds of San Diego, Chapter 24, adds a new wrinkle this year, parking several 1950s Thunderbirds along the route. It's a small addition, but it makes the architectural point better than a lecture would: the cars and the houses were designed in the same decade, chasing the same instinct toward clean lines and horizontal mass.

Two Midcentury Events in 2026

The Historic Home Tour didn't appear out of nowhere. Mission Hills Heritage spent this spring building toward it.

The spring weekend offered a ticketed reception and lectures in May, while the September tour will offer a self-guided public tour focused on Mission Hills' midcentury architecture.

Midcentury Modern Preservation in Mission Hills

Midcentury modern architecture in this part of San Diego has long been documented by the broader preservation community. SOHO San Diego, the countywide preservation nonprofit, has circulated a free tour booklet titled "Delawie, Ruocco, and Friends: 1942-1965" for years, alongside a separate booklet covering Mission Hills homes more broadly. The booklet offers visitors context for the architects whose work will appear on the route.

Mission Hills Heritage has nominated two historic districts to the city's register over the years: the Mission Hills Historic District and the Fort Stockton Line. The City of San Diego's Historical Resources Board designated the Cliff May House on April 10, 2014. That designation shows official landmark recognition for midcentury properties in San Diego predates this year's tour. This year's tour adds a dedicated focus on midcentury modern architecture to the Historic Home Tour.

What This Means If You Live Here

You don't need to buy or sell anything to notice the shift. If you've walked past a flat-roofed house on a canyon lot in Mission Hills and assumed it was a later renovation that didn't match the neighborhood, September 26 is the day someone can tell you otherwise, in person, standing in the doorway.

That's really the story here. Mission Hills' architectural identity includes the palm trees and wraparound porches many people associate with it, alongside a midcentury history shaped by architects whose work reached well beyond the neighborhood. This year's tour gives that architectural history its own day.

At Hernholm Group, we spend a lot of our working hours in the company of houses like these, the kind that carry real architectural weight and real preservation questions alongside them. If you're curious what a home's design history actually means for its long-term value, or what it takes to keep a modernist or historic property intact for the next fifty years, we're glad to talk it through. Get Access to Exclusive Listings.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.