Westfield Horton Plaza
A landmark five-level open-air shopping mall in downtown San Diego, California, later redeveloped as The Campus at Horton.
Last updated August 24, 2026
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Overview
Westfield Horton Plaza was the former name of Horton Plaza, a large open-air shopping and entertainment complex in downtown San Diego, California. It opened on August 9, 1985, as the signature project of developer Ernest W. Hahn and was intended to reverse the decline of the traditional downtown retail district at a time when American shopping activity was increasingly moving to suburban malls. The project occupied roughly six and a half city blocks beside the Gaslamp Quarter and combined retail stores, restaurants, cinemas, parking structures, public space, and connections to surrounding downtown streets. The center became especially notable for its architecture. Designed by Jon Jerde and his newly established Jerde Partnership, Horton Plaza rejected the enclosed, uniform layout associated with conventional malls. Its five levels were arranged around a three-level diagonal pedestrian courtyard that Jerde described as an armature. Brightly painted façades, mismatched elevations, one-way ramps, theatrical parapets, colonnades, unexpected turns, dead ends, and visual references to European urban spaces created an intentionally disorienting environment. The design drew on Ray Bradbury's ideas about the pleasure of becoming safely lost in a city and became an influential example of postmodern commercial architecture and what Jerde called experience architecture. The opening was accompanied by substantial public attention. A preview gala reportedly attracted thousands of guests, while opening-day events drew a very large crowd. In its first year, the property recorded visitor numbers far above those of a typical shopping center, and by the late 1980s it was regarded as one of San Diego's most visited attractions. The mall initially included four principal department-store anchors: The Broadway, later Macy's; Mervyn's; Nordstrom; and J. W. Robinson's. Other tenants over time included entertainment, restaurants, fashion retailers, specialty stores, and cinemas. Historic and cultural elements associated with the site included Jessop's Clock, the Balboa Theatre, the Lyceum Theatre, and nearby Horton Plaza Park. Its commercial performance became more complicated as the property matured. Observers noted that the architecture made the center a tourist destination, but tourists did not always convert into high-value retail customers. Department-store closures and retailer bankruptcies gradually weakened the tenant mix. Mervyn's departed in 2006, Nordstrom closed in 2016, and Macy's, the last major anchor, shut its store in April 2020 after reaching an agreement with the property's new owner. The Regal cinema complex also closed in 2019. The property was sold to the Westfield Group in 1998 and renamed Westfield Horton Plaza. Following the 2014 separation of Westfield's Australian and New Zealand assets into Scentre Group, the American property remained associated with Westfield Corporation. Westfield Corporation was acquired by Unibail-Rodamco in 2018, although the Horton Plaza complex was sold that same year to Stockdale Capital Partners for redevelopment. Stockdale proposed converting the aging mall into an office-and-retail project called The Campus at Horton, with an emphasis on technology and biotechnology businesses. The plan retained significant portions of the original structure while adding new building systems and modern workplace space. Although some reports described the project as demolition, the redevelopment was framed as adaptive reuse rather than total destruction. The former Westfield shopping-mall identity therefore ended as the site transitioned to a mixed-use commercial campus.
History
The redevelopment concept that became Horton Plaza emerged from San Diego's early-1970s effort to renew its historic downtown core. The city adopted a redevelopment proposal in 1972, and Ernest W. Hahn secured an exclusive negotiating agreement in 1974. Hahn acquired the site in 1978 for approximately one million dollars, subject to requirements involving parking and broader downtown improvements, including progress on the San Diego Trolley, the Convention Center, and the Centre City Development Corporation. The project encountered delays because of design disagreements, business relocations, demolition of existing structures, and opposition from historic-preservation groups. Hahn initially commissioned a more conventional enclosed shopping-center design, but the city's redevelopment agency considered it too conservative. Jon Jerde was hired in 1977 to revise the concept. By the early 1980s, Jerde had developed the radically open, vertically layered scheme that became the completed mall. The design removed the conventional roof, placed circulation around a diagonal courtyard, and used architectural irregularity to make the center feel like an urban district rather than a single building. Construction began in 1982, and the approximately $140 million project opened on August 9, 1985. It was immediately recognized as an architectural and commercial experiment. The mall's opening ceremonies attracted a major crowd, and the center drew tens of millions of visits during its first year. Its popularity helped establish downtown San Diego as a destination for residents and tourists, although critics later argued that its fame as an attraction did not always translate into strong conventional retail spending. Food and entertainment represented an unusually large share of activity compared with ordinary malls. The original anchor lineup included The Broadway, Mervyn's, Nordstrom, and J. W. Robinson's. The Broadway operation later became Macy's. The Robinson's building was ultimately removed, while its site was incorporated into the expansion of Horton Plaza Park. Mervyn's closed in 2006, and its space was divided among later tenants. Entertainment and specialty tenants changed repeatedly, including Planet Hollywood, FAO Schwarz, Sam Goody, restaurants, and cinema operators. Several retailer bankruptcies and closures reflected wider changes in American retail rather than a single event at the property. Westfield acquired the center in 1998 and renamed it Westfield Horton Plaza. During the Westfield period, the owner participated with the city in the creation of Horton Plaza Park, which opened in 2016 after the former Robinsons-May building was removed. The project added public event space, a fountain, performance facilities, and other civic amenities. At the same time, the mall's department-store base weakened. Nordstrom announced its departure in 2016, leaving Macy's as the only major anchor. Stockdale Capital Partners purchased the complex in August 2018 for a reported $175 million and proposed The Campus at Horton, an office-and-retail conversion focused partly on technology and biotechnology companies. The plan attracted opposition from preservation advocates who argued that the architecturally significant mall should receive historic protection. The city approved a land-use exemption in May 2019, reducing the amount of retail required for the property. Macy's filed a lawsuit later that year concerning the redevelopment and its lease, but reached an agreement with Stockdale in January 2020 to close the store. Regal's cinema operation closed in February 2019, and Macy's ceased operations in April 2020. Large-scale work began in June 2020. The conversion retained a substantial portion of the original building materials and structural steel while adding insulation, mechanical systems, and office infrastructure. The redevelopment marked the end of Horton Plaza as a Westfield-branded shopping mall and its transition into a mixed-use workplace and retail campus.
- 2020
Macy's closes and adaptive reuse begins
[1]Macy's closed in April, and major conversion work began in June as the site transitioned toward The Campus at Horton.
- 2018
Stockdale acquires the property
[1]Stockdale Capital Partners acquired the complex and announced plans for an office-retail conversion.
- 2016
Horton Plaza Park opens
[1]The expanded public park beside the mall held its grand opening after redevelopment of the former Robinsons-May site.
- 1998
Westfield ownership begins
[1]The property was sold to the Westfield Group and renamed Westfield Horton Plaza.
- 1985
Horton Plaza opens
[1]The five-level downtown shopping center opened on August 9 with Jon Jerde's distinctive postmodern design.
- 1982
Construction begins
[1]After design disputes and preservation-related delays, construction started on the unconventional open-air mall.
- 1974
Hahn secures development negotiations
[1]Developer Ernest W. Hahn obtained an exclusive negotiating agreement for the proposed shopping-center project.
- 1972
Downtown redevelopment proposal adopted
[1]San Diego adopted a plan to refurbish the historic downtown plaza area and stimulate broader central-city redevelopment.
Products and positioning
A downtown destination mall positioned as an experiential alternative to conventional suburban shopping centers, combining retail, entertainment, public space, and highly distinctive postmodern architecture.
Shopping mall · 1985
Horton Plaza shopping center
The core offering was a five-level open-air urban shopping center organized around a diagonal, three-level pedestrian courtyard. It combined department stores, specialty retail, restaurants, cinemas, fitness, parking, and public circulation spaces. Its commercial proposition depended as much on architectural experience and downtown visitation as on conventional shopping.
Mixed-use office and retail development · 2020
The Campus at Horton
The post-Westfield redevelopment proposed by Stockdale Capital Partners retains major portions of the original structure while converting the property into office space supported by ground-level retail, food, beverage, and entertainment uses. The concept emphasizes technology and biotechnology tenants rather than department-store-led shopping.
Brand decisions
2020
Conversion from shopping mall to office-retail campusStrategyBackground
The property had lost major anchors, including Nordstrom and Macy's, while its cinema and many smaller retailers also departed.
Action taken
Stockdale began a large adaptive-reuse program, retaining substantial structural material while modernizing the building for offices and selected retail uses.
Aftermath
Horton Plaza ceased operating as a conventional Westfield shopping mall and entered a new mixed-use development phase.
First-phase redevelopment loan. 330 million USD (March 2020)
2018
Sale to Stockdale Capital PartnersM&ABackground
Declining anchor-store activity and changing retail patterns weakened the traditional mall model.
Action taken
Stockdale Capital Partners purchased the complex and proposed converting it into The Campus at Horton.
Aftermath
The Westfield-branded mall was gradually closed and replaced by an adaptive-reuse office and retail project.
Reported acquisition price. 175 million USD (August 2018)
Recent events
- 2020
Macy's reaches agreement to leave Horton Plaza[1]
Other
Macy's agreed to close its store as part of a broader national closure program, clearing a major obstacle to Stockdale's redevelopment plans.
- 2019
Macy's files lawsuit over redevelopment plans[1]
Lawsuit
Macy's sought to delay or stop aspects of the proposed redevelopment, arguing that the plans conflicted with its lease arrangements. The dispute was later resolved through an agreement allowing the store to close.
- 2018
Horton Plaza sold to Stockdale Capital Partners[1]
M&A
Stockdale Capital Partners acquired the complex and announced plans to convert it into The Campus at Horton, a mixed office and retail project.
- 2016
Nordstrom announces Horton Plaza closure[1]
Other
Nordstrom announced that its Horton Plaza store would close, leaving Macy's as the principal remaining department-store anchor.
- 2011
Horton Plaza Park redevelopment approved[1]
Other
The San Diego City Council approved removal of the former Robinsons-May building to create and expand an urban park beside the mall, with Westfield participating in the public-space project.
- 1998
Westfield acquires Horton Plaza[1]
M&A
The mall's owners sold the downtown San Diego property to the Westfield Group, which adopted the Westfield Horton Plaza name.
Sources1 sources
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