Page & Turnbull Announces Strategic Promotions and an Expanded, Experienced Team

Architecture firm amplifies its leading expertise in architecture, historic preservation, and adaptive reuse with team advancements and additions 

The award-winning architecture, planning, and historic preservation firm Page & Turnbull is building on its prominent success nationwide and in California’s largest markets with the elevation of senior-level personnel and newly added team members. On the heels of the firm’s opening of its fourth office, in San Jose, the promotions include director-level appointments for regional offices and specialized studios. Among those, Page & Turnbull is adding new team members to its notable Cultural Resources Planning Studio.

In the advancement of the firm’s senior team, architect James McLane, AIA, joins the company as director of technology, with top-level experience in a wide range of complex projects in California and internationally. As well, a senior expert in preservation technology, Lex F. Campbell, comes to Page & Turnbull with a background of leadership in building envelope technology and preservation.

Adding to the strength of Page & Turnbull’s leadership team are the elevations of Tara Ogle, AIA, LEED AP, to associate principal and director of the firm’s Architecture Studio, and James Mallery, AIA, LEED AP, to director of Page & Turnbull’s Los Angeles office. Mallery, who specializes in complex civic, corporate, adaptive reuse, and historical building projects, served as project architect for The Cheech Marin Center for Chicano Art & Culture of the Riverside Art Museum that recently opened in his hometown of Riverside, California. Ogle has an international background in education, cultural, waterfront and parks projects, leading her teams to deliver exceptional projects from San Francisco to New York, Mexico, Ireland and South Korea.

Other key promotions include Christina Dikas, now director of the Cultural Resources Planning Studio, and David Roccosalva, director of marketing and business development, who becomes associate principal.

“The rise of our senior team’s members is a testament to their commitment to superior leadership in architectural excellence and historic preservation,” says principal and firm president Peter Birkholz, AIA, LEED AP. “It has been very rewarding to build on our team’s valuable guidance and the success of our firmwide strategies by elevating people who are essential in making them happen.”

In addition to elevating senior staff, Page & Turnbull has expanded its team of specialized historians, architects and designers, furthering the firm’s continuing success in architecture, historic preservation, and adaptive reuse work.

New cultural resource planners round out the firm’s growing Cultural Resources Planning Studio and its dominance in historic research and analysis, bringing in the architectural historians Walker ShoresSarah Kefalas, and Maggie Nicholson. The architecture studio has added designers Anna GruenDarren Sun, and Kyungmin Hwang in the San Francisco office, Carolyn Geyer in San Jose, and in Los Angeles, Lauren Postlmayr and office administrator Jesus Martinez. Designer/project manager Nicola Gnes will join the Los Angeles office in October.

“It’s always exciting to expand our team. We believe it’s important to work with exceptional people who are passionate about improving communities through architecture and historic preservation,” says the principal John D. Lesak, AIA, FAPT. “We couldn’t be more pleased and more optimistic about the future.”

More biographical details on the newly added and elevated firm leaders follow, below.

About Page & Turnbull’s Promotions and Hires

Tara Ogle, AIA, LEED AP, associate principal and Architecture Studio Director, has a background in international education, cultural, waterfront and parks projects, including more than 17 years of experience. Her notable projects include the University of California San Francisco, Clinical Sciences Building Renovation, the Salesforce campus In Dublin, Ireland and The Exploratorium at Pier 15 in San Francisco. Director for Page & Turnbull’s Architecture Studio, Ogle’s earlier positions include work with architecture firms Mark Cavagnero Associates and EHDD.

Christina Dikas, associate principal and Cultural Resources Planning Studio Director, leads many of Page & Turnbull’s important preservation planning efforts, such as the Historic Resources Element of the City of Napa’s General Plan Update, and general and specific plans for California cities, including Oakland, Sacramento, and Santa Rosa. An award-winning architectural historian and preservation planner, Dikas’ work on Preserving Eichler Neighborhoods Design Guidelines won the 2019 US Award of Excellence from Docomomo, and a CPF Award for Cultural Resources Studies, among other accolades. She is a sought specialist on architectural style, and has been quoted in the Los Angeles Times, SFCurbed, Redfin, Eichler Network, House Beautiful, Homes & Gardens, and Forbes. Her photographs of travel to India and Nepal were published in Grand Magazine, based in Ontario, Canada.

Associate principal David Roccosalva directs Page & Turnbull’s marketing and business development. An experienced marketing director, he excels at business development and communications, innovative approaches to marketing, strategic planning, and collaborative advancement. Roccosalva worked at Buro Happold, EverGreene Architectural Arts, Gluckman Tang Architects, and other East Coast design firms before rejoining Page & Turnbull, where he worked from 2000 to 2009.

James Mallery, AIA, LEED AP, senior associate, excels in architecture design, coordination, and management. Director of the firm’s Los Angeles location, Mallery’s work in complex civic, corporate, and adaptive reuse includes the new Cheech Marin Center for Chicano Art, Culture & Industry of the Riverside Art Museum, an adaptive reuse project and vibrant community centerpiece. Before earning his master’s in architecture from California State Polytechnic University-Pomona, Mallery completed his doctorate in urban history at the University of California, Los Angeles. He currently teaches architectural history to graduate students at the Academy of Art University.

Architect James McLane, AIA, is experienced in leading complex projects, including an emphasis on humane buildings and spaces that accentuate a sense of place. McLane’s attention to classic designs, façade composition, and contemporary aesthetics add to his focus on technical detailing. Prior to joining Page & Turnbull as the firm’s technical director, McLane was with Steinberg Hart Architects. He’s now based in Page & Turnbull’s Los Angeles location where he oversees the firm’s quality management and leads in construction administration.

Lex F. Campbell has led numerous project management work involving exterior restorations of masonry, concrete, precast stone, and other materials. His two decades of experience with historic buildings has emphasized historic landmarks and the technical challenges involved in their preservation. A graduate of Cornell University with a master’s in historic preservation planning, and from Virginia Commonwealth University with a bachelor’s in art history, Campbell comes to Page & Turnbull’s San Francisco location in preservation technology, following project management work with Rainbow Waterproofing & Restoration Co.

About Page & Turnbull

Page & Turnbull is an architecture and planning firm that transforms the built environment through design, research and technology. Located in San Francisco, Los Angeles and Sacramento, the firm comprises three Studios: Architecture, Cultural Resources Planning & Research, and Preservation Technology. Collectively, Page & Turnbull’s staff includes licensed architects, designers, historians, planners and conservators with a mission to balance historic character with adaptive reuse, objective historic evaluation with community involvement, and complex design solutions with technical understanding of historic materials and their conservation. More at