Jimmy Chan
Vice President

Jimmy has completed a wide range of public and private work that spans public urban spaces, institutional/healthcare campuses, retail/hospitality venues, transportation projects, and housing. He has developed master plans and design guidelines, and has worked on parks of various scales: from waterfront parks and National parks, to local neighborhood parks. 

A design leader with technical know-how, he has led, collaborated, and coordinated many complex projects with multiple stakeholders, design consultants, and contractors. His passion is rooted in the meaningful benefits of transforming our public spaces. In addition to leading his own projects, Jimmy also manages the firm's Operations and serves on the Port of San Francisco's Mission Rock - Pier 70 Design Advisory Committee.

Projects of note:
BART Lake Merritt Plaza Conceptualization
Oakland Madison Square Park Visioning
San Francisco Salesforce Tower | Transbay Center
San Francisco Hunters Point Shoreline
Kaiser Dublin MOB and Cancer Center
South Lake Tahoe Lakeview Commons Waterfront

Jimmy Chan Vice President
Manuela King

As a Principal in the firm, Manuela King has been instrumental in the design of a wide variety of high-profile projects. These include urban design and planning, park and recreation planning, residential design, and commercial and professional facilities. Her interests include the relationship between art, architecture, landscape architecture and contemporary urban design. She is a strong advocate of sustainable design in all her projects.

Over her time with the firm, her work has expanded to include many international projects, including work in Chile, Taiwan, Malaysia, Israel, Korea, the Philippines, China, Australia and Japan. Manuela currently serves the Union Square Business Improvement District as an Advisory Committee Chair on Streetscapes and Public Realm. She is a LEED AP.

Projects of Note:
San Francisco Chinatown Central Subway
Sonoma Academy
San Francisco Panhandle Playground
San Francisco Union Square 
Half Moon Bay Library
VA Palo Alto Landscape Master Plan

Manuela King President
Nathan Lozier
Vice President

Nathan brings a focus on the integration of ecology and infrastructure with the design of landscapes. Nathan is particularly interested in creating people-friendly spaces that evoke the site’s history and reveal ecology and natural process. He believes in a collaborative approach, seeking creative solutions that realize the opportunities and needs of the site, client, and community. 

Nathan has worked on a variety of projects incuding large scale master planning, streetscapes, storm water management, and civic / academic institutions. He is currently leading the design of a large technology campus. In addition to guiding the firm, Nathan also teaches a professional practice class at UC Berkeley. He is a LEED AP.

Select projects of note: 
San Francisco Hunters Point Shoreline 
San Francisco Candlestick Point and Hunters Point Shipyard Redevelopment
San Francisco Salesforce Tower | Transbay Center
City of Davis Third Street Improvements



Nathan Lozier Vice President
Barbara Lundburg
Vice President

Barbara Lundburg is highly qualified in all aspects of landscape architecture, from large-scale environmental studies to urban design, park master plans and community and campus development. Her design work is typified by intimate detail, powerful contextual linkages, and expert use of specially selected plant materials.

Barbara combines a sense of artistry and appreciation for personal expression, in all its forms, with her passion for gardening. Her work responds to the environment while also being informed by cultural, historical and architectural references. The sensitivity extends to her collaborative approach to design. Barbara is a LEED AP.

Projects of note:
Malibu Legacy park
San Mateo Waste Water Treatment Plant
Stanford Barn
Intel Museum
El Cerrito Parks and Recreation Master Plan
VA Riverside Cemetery

Barbara Lundburg Vice President
Douglas Nelson

Doug brings leadership experience in parks, urban design, and historic landscapes. His vision and creativity have resulted in significant projects in Yosemite National Park, the Presidio of San Francisco, San Francisco’s Golden Gate Park, and other iconic and sensitive places.

He brings particular expertise in historic landscapes, national park projects, and projects involving extensive community involvement. He develops a collaborative relationship with clients that results in responsive designs. His passions include art, history, and landscapes, which he regularly integrates into his work.

Projects of Note:
Fresno Fulton Mall Rehabilitation
Andy's Unity Park
Yosemite Glacier Point Rehabilitation

Douglas Nelson Principal
James Ingels

With education and professional experience in both landscape architecture and construction, James has a broad range of skills for managing projects of varying nature and scale. James has worked on numerous streetscape and urban design projects. His understanding of project design and construction process from inception to completion is a valuable asset to managing a successful project.

James has over twenty-five years of experience, contributing to his expertise in the “buildability” of projects. This knowledge helps James contribute significantly to the design and implementation process.

Projects of note:
Auburn School Park Preserve
Burlingame Avenue
Fresno Fulton Mall Rehabilitation

James Ingels Principal
Megan Dale
Senior Associate

Megan is a landscape architect with extensive international and domestic experience. She has managed a range of projects in the fields of urban planning, public parks, waterfront design, high-density housing, urban forestry, trails, cemeteries, public utilities, and community development.

She brings awareness and spirited creativity to projects striving to deliver positive results. Her design approach is to listen to the land and people, then incorporate the unique aspects of each site. Megan has a passion for hiking, nature observation, and mountain biking. She enjoys teaching people to care for the places they cherish for outdoor recreation and to protect the natural environment.

Projects of note:
Stanford Barn
Berkeley Toulumne Camp
Fresno SE Surface Water Treatment Facility

Megan Dale Senior Associate
Masahiro Inoue
Senior Associate

Born and raised in Japan, Masahiro started his career at a well-respected Landscape Architecture firm in Tokyo. Prior to his career in the US, he earned a perspective of the modern minimalist aesthetic understanding the interface between Architecture and Landscape Architecture through his work and education.

Since joining RHAA in 2006, he has designed a wide variety of projects with a strong sense of constructability. He fulfills a role of designer as a graphical translator to interpret and transform spaces into profound landscapes for people.

He enjoys traveling and finds inspirations by being in places in different scales ― a hidden zen garden ‘Entsu-ji’ in Kyoto, a mile long energetic street ‘La Rambla’ in Barcelona, or a dynamic valley landscape ‘Lake Lungern’ in Switzerland.

Projects of note:
PG&E Hunters Point Shoreline 
Candlestick Point and Hunters Point Shipyard Redevelopment
Salesforce Tower | Transbay Transit Center

Masahiro Inoue Senior Associate
John Martin
Senior Associate

John brings a background in Integrative Biology to Landscape Architecture and an interest in urban and cultural landscapes that connect communities to their surroundings. He believes enduring and memorable public spaces emerge from the creative melding of a site’s ecology, its history, and the functional needs of the individuals using it.

He has a particular interest in the experiential qualities thoughtful planting design can elicit. In his free time, John can be found hiking through and photographing California’s diverse native plant communities or taking road trips to mid-century destinations. He is a licensed Landscape Architect, and is Bay Friendly Certified.

Projects of note:
Fresno Fulton Mall Rehabilitation
Burlingame Avenue
Davis Third Street

John Martin Senior Associate
Jacob Millard
Senior Associate

Jacob's sensitivity to client needs, user experience, and sustainable solutions equals his passion for contemporary site design and place making. Jacob has focused his education and career on understanding and exploring our relationship with natural and built environments; and his background in design, engineering and construction has given him a strong foundation for working with clients, communities and multi-disciplinary teams to facilitate processes within which design can take place.

At RHAA, Jacob has worked on a diverse range of public & private projects; from master planning and conceptual visioning to a wide variety of constructed projects. His work has included urban plazas, streetscapes, and civic spaces; park and recreation projects; health care facilities and corporate campuses; schools and educational campuses; multi-use developments, commercial retail spaces, and residential design. Jacob is a licensed Landscape Architect.

Projects of note:
Sonoma Academy
Sausalito Dunphy Park
Hayward Library

Jacob Millard Senior Associate
Chelsea Andersson

Chelsea is a Landscape Architect with a diverse project background. To each project she brings the strong belief that engineering and design must work systematically to create spaces that respond to the physical need of a site, its culture, and its environment. 

Within the office her work focuses on playgrounds, park design, National Parks, and Veteran Cemeteries. Outside of the office, Chelsea can be found hiking, biking, and woodworking.

Projects of note:
Muir Woods Pedestrian Bridges
Joshua Tree Visitor Center
Stanford barn

Chelsea Andersson Associate
Aimee Jeska

Aimee is a Landscape Architect with experience working on mixed-use developments, campuses, streetscapes, urban agriculture and city developments. She is interested in working with communities and project developers to create design solutions to enrich the user experience and enhance the natural ecologies that exist on site and through the greater system.

This focus can be seen in her thesis project at the University of Oregon, where she focused on daylighting and restoring a creek to become the heart of a new mixed-use development. Outside of the office, she enjoys adventurous outdoor activities, traveling, and throwing pottery at her local ceramics studio.

Projects of note: 
Half Moon Bay Library
1028 Market Street
Harvey Milk Plaza Competition

Aimee Jeska Associate
Lindsey Yuen

Lindsey is a Landscape Architect whose project experience has focused on local public projects, ranging from large recreational parks, neighborhood parks, and coastal trails. She offers her strong construction document and project coordination experience to the team. Academically trained in the Pacific Northwest, her studies focused on urban ecological design, community building, therapeutic landscapes, design-build, and visual arts.

As a way to continue building upon her interest in community-based work, she recently begun volunteering for a local non-profit that provides design services for local marginalized communities.

Projects of Note:
Hunters Point Shoreline
60 acre technology campus (confidential)
Dublin Downtown Streetscape Plan

Lindsey Yuen Associate
Nathanael Gray

Nathanael believes that each project he designs adds another layer to an already transpiring story. The landscape is complex and nuanced; each place has a unique social and environmental history. To understand this story Nathanael finds inspiration by spending time on the site, in depth site analysis, and dialogue with the community.

Projects he has worked on include public parks, community master plans, school grounds, and urban plazas. In his spare time Nathanael continues to explore the landscape where he lives by hiking, plein air painting, and taking long walks until he is lost, then finding his way back.

Nathanael Gray Designer
Kossen Miller

Kossen Miller is a landscape designer with focused interest in complex cultural landscapes and the evolution of coastal places. He holds a Masters Degree in Landscape Architecture from LSU’s Robert Reich School of Landscape Architecture; and a BA in Leadership Studies from the University of Richmond. A lifelong passion for the ocean and surfing has led to international travel and work experiences that now serve to define and enrich his design endeavors.

Kossen Miller Designer
Lauren Ivey

Lauren is an urban designer interested in the relationship between landscape design, city planning, and community building. Her passion for design combines a vibrant architectural aesthetic with an interest in creating strong contextual relationships, to create unique and locally relevant spaces. At RHAA, Lauren has managed several Park and Recreation Master Plans for cities in the Bay Area, and previously worked as a Student Recreational Planner for the National Park Service.

She holds a dual master in City Planning and Landscape Architecture from the University of California, Berkeley, where she researched design through community engagement. Outside of the office, Lauren teaches dance at the studio she grew up in: Jazz N Taps rocks!

Lauren Ivey Designer
Kendra Manning

Kendra’s interest in the outdoors developed from hiking and camping along the unique coastlines and amongst the dense native forest of her home country of New Zealand. This led her to pursue her Master’s degree in Landscape Architecture from Victoria University of Wellington, New Zealand; graduating in 2014.

Kendra experienced working on urban parks, streets, and commercial projects in Wellington before moving to San Francisco in 2015 where she worked in high-end residential design. Through her work she has developed a passion for uncovering unique aspects of a sites identity through engagement with history, culture, community and the environment. 

Kendra Manning Designer
Maggie Luo

Born and raised in Taiwan, Maggie’s passion for design and plants has landed her as a software engineer, a florist, to a landscape designer. She loves hand drawings and is very interested in exploring how media integration could create a successful and innovative way to narrate design concepts to clients. She received her MLA at the UC Berkeley. Her design interests include a wide variety of project types, especially children’s playground and horticultural therapy garden design. 

Maggie Luo Designer
Profile Coming Soon
Mochi Designer
Maya Baraona
Profile Coming Soon
Maya Baraona Designer
Daniel Dominguez

Daniel believes that every landscape tells a story that isn’t apparent at first glance but requires a prolonged interrogation to truly understand. This belief drives his design process. A belief that formed at school and while working at various international design firms.

He holds a Master of Landscape Architecture from The University of California, Berkeley and a Bachelor of Science in Sustainability from The University of Florida. As well, he enjoys being in water, whether that involves swimming, sailing or just standing in the shower.

Daniel Dominguez Designer
Philip Fernberg
Profile Coming Soon
Philip Fernberg Designer
Xinni Zhang

Xinni received her BLA and MLA from Beijing Forestry University and a Master of Urban Design from UC Berkeley. Her interest in landscape design focuses on public space including education, cultural and historic places. Her previous project experience focuses on urban parks and waterfronts. Xinni believes every landscape design should consider a person’s basic physical function with respect to the local context.

Outside of the office Xinni has a passion for ballet, symphony orchestra and opera. She also enjoys cycling, hiking and travelling to explore cultures and landscape. 

Xinni Zhang Designer
Parabar Weber

Parabar comes to RHAA with a diverse background in Financial Management. He was previously a Systems Manager at Vali Cooper and Associates, a Financial Manager at Stantec, and served as Controller for RHL Design Group, Inc. for nearly 20 years. In addition to RHAA,

Parabar does private consulting for Bay Area law, software and other firms, and is also an accomplished musician, having recorded and toured the USA, Canada and Europe with a number of well-known reggae, jazz, rock, Latin and funk artists. He continues to record and perform throughout the Bay Area on a part-time basis.

Parabar Weber Controller
Janet Rector
Senior Associate, Project Accountant

Janet has provided RHAA project accounting and financial support since 1998.  Her prior experience includes project accounting and software implementation in both the technical and manufacturing fields.

Living and working local allows Janet to bike commute and to help reduce her carbon footprint.  Her passion for mountain biking includes both exploring the trails and volunteering to help maintain them.

Janet Rector Senior Associate, Project Accountant
Jules Schaafsma
Marketing Manager
Profile Coming Soon
Jules Schaafsma Marketing Manager
Nels Berg
System Administrator/Accounting Assistant

Nels comes from an accounting background with a love of technology and computers. He handles all technological and computing issues for the office as well as supporting the accounting operations of the business by processing merchandise invoices, making payments and resolving queries. In his free time, he enjoys working on his vehicles and spending time with his family.

Nels Berg System Administrator/Accounting Assistant
Kathy Bourdet
Office Manager

Kathy graduated from UC Davis with a degree in Dietetics and Nutrition, and practiced as a Registered Dietitian for many years. It was time for a change, and after working with a career coach, she decided to go back to school and earned two degrees: one in environmental landscaping, and the other in Landscape Architecture.

She is passionate about environmental issues, having been born and raised in California where protection of the environment is a relatively new concept. She is also passionate about developing alternative energy sources, nuclear energy and its waste and what to do about it, and the lack of water in California and the burden of an ever-increasing population.

Kathy Bourdet Office Manager
Diana Sivasatheesan
Marketing Assistant and Graphic Designer

Diana comes to RHAA as a graphic designer and marketing assistant. She has an international background in graphic design and holds a BFA in Graphic Design from the University of Northumbria at Newcastle and a Masters degree in Graphic Design and New Media from the Academy of Art University, San Francisco. Diana is fascinated with the relationship between type and image. Born in Sri Lankan, Diana is an Indian classical dancer and enjoys exploring other cultures.

Diana Sivasatheesan Marketing Assistant and Graphic Designer