About me:
Most recently I have had the pleasure to work with Hensel Phelps as the BIM/VDC Manager for the Southern California district. During this time I worked on the winning proposals for the United Airlines Terminal modernization at LAX, and student housing projects at UC Irvine and UC San Diego. I also provided BIM support to our teams at Kaiser Hospital San Diego, Terminal 1 (Southwest) and Terminal 2 (Westfield Malls) at LAX, and our numerous other projects in SoCal. I also worked closely with my counterparts at the corporate office and other districts on the development and implementation of BIM/VDC standards.

Prior to my work with HP I was a consultant in the San Francisco Bay Area for general contractors, including Clark and McCarthy, as well as a variety of architects, subcontractors, and equipment vendors. During this time I worked on numerous proposals including the new Apple office complex (the "spaceship"), the VMware campus, and numerous others. I also provided BIM management, production, and coordination services for a wide range of projects including laboratories, hospitals, and even an amusement park, among many others.

I have also worked with View by View on large hospital, education, and other projects providing BIM modeling, coordination and support services. View by View is widely recognized as a pioneer in BIM beginning with their groundbreaking work on the Letterman Arts Center for George Lukas among many other accomplishments. It has been an invaluable experience to work with such leaders in the world of BIM.

In addition to my experience in BIM modeling and coordination, I have worked with many firms to develop, implement, document and maintain BIM and CAD standards and practices. My clients have included Architects, Engineers, Contractors, Owner/Developers and Government Agencies.

Prior to focusing my efforts on the development and implementation of BIM and CAD standards and practices I worked as a general contractor and before that as a master carpenter and cabinet maker. These early experiences have served to provide me with both the experience of how buildings are built and an understanding of the importance of attention to detail, getting things right the first time and fixing them quickly when necessary.

I look forward to continuing to explore ways that BIM practices can facilitate team building and communications to improve the design, engineering, construction and maintenance of the built environment.
Summary of professional and personal skills:
  • Creative thinker with excellent problem solving abilities
  • Adept at communication with strong interpersonal skills
  • Strong organizational and management skills
  • Experienced lecturer, skilled and enthusiastic public speaker
  • Extensive experience training and supporting BIM practices
  • Broad and deep experience with a wide range of BIM and other software
  • Advanced technical abilities in BIM related aspects of computer programming
  • Detailed understanding of BIM and CAD standards and practices including NCS, NBIMS, etc.
  • Familiar with IPD, Lean Construction, LEED, COBIE, etc.
  • Knowledge of building codes and regulatory requirements
  • Hands on experience in construction and construction management
  • Not afraid to admit what I don't know
  • Know where to find out what I need
  • Extensive professional resources and connections through my local, national and international contacts
Summary of experience:
Over twenty years experience with BIM and CAD applications such as Revit, ArchiCAD, AutoCAD, etc. for use in my own practice and as a consultant to Architects, Engineers, Contractors, Owners, Developers and Software Publishers.
Construction and Fabrication:
Over ten years early career experience in general contracting and construction management with ongoing experience with the use of BIM in construction administration, coordination and supervision.
Over twenty years experience in architecture and urban planning on projects of all sizes and types. Including renovation and new construction of hospital, educational, commercial, retail, residential and master planning projects with construction costs ranging into the hundreds of millions.
BIM Consulting & Coordination
I have worked with Architects, Engineers, Contractors, building owners, governmental agencies and software developers to establish, develop, use and maintain BIM practices and standards. The primary focus of my career is the implementation, customization and documentation of BIM standards and practices. I have developed standards over twenty firms and agencies directly and influenced developments in many more indirectly through my lectures and network of associates. In addition to my own resources, skills and experience I have access to a wide range of connections and associations that I can draw upon in the worldwide community of BIM users and developers.
Teamwork & Management
Working in a broad range of projects with widely differing firms and disciplines has afforded me considerable experience with large and small teams of all sorts. I have worked at all levels of management and responsibility in architectural design, construction management and BIM deployment. I understand what it takes to get things done and will fulfill whatever role is required to make that happen.

Construction Management
I have experience as the primary general contractor or construction manager on projects ranging up to several million in construction costs. I have also worked in collaboration with others on projects into the hundreds of millions, including hospitals, commercial and residential development projects. This experience dovetails with my experience in BIM modeling to provide an exceptional skill set for construction coordination.
File Formats & Translation
Working with and having to coordinate a wide range of BIM, CAD and other software has provided me the opportunity to learn the ins and outs of translating files and interoperating successfully for BIM coordination and construction management.

Revit, NavisWorks, ArchiCAD, Solibri, Tekla and a host of other programs can be made to successfully interoperate with IFC, DWG, 3DS, DWF, NWC and other formats. While this process is still time consuming and requires careful setup it can be made quite reliable and reasonably efficient. In time this will inevitably become more automatic and robust as we build on the lessons learned.
Design Collaboration
My experience with a wide range of Architects, Planners and Designers has given me an understanding of the methods, processes and issues involved in the creation and execution of schematic design, design development and construction documentation. The combination of architectural and construction experience makes me particularly qualified in architectural detailing, problem solving and matters of constructibility.
Computer Programming
Since customization often provides major benefits in the use of BIM software I have become experienced in scripting and high level programming languages in order to create specialized libraries and adapt the programs to the particular needs of my clients. I have also worked on libraries for the localization of BIM software to specific national practices in the US, Canada and Croatia. In 1996 I was responsible for the development of the US content library of doors, windows and other parts for the localization of the german BIM program speedikon (by IEZ) for the US market.
Software proficiency:
BIM Authoring
  • Revit Architecture
  • Revit Structure
  • Revit MEP
  • ArchiCAD
  • SketchUp
  • AutoCAD MEP
  • AutoDCAD Civil 3D
  • Microstation
  • Tekla
  • CaddMEP
  • ...etc.
  • Architrion
  • speedikon
BIM Coordination
  • NavisWorks
  • Syncho
  • Solibri
3D Modeling
  • SketchUp
  • form•Z
  • Rhino
3D Rendering
  • Cinema 4D
  • Artlantis
  • 3DS Max
  • AutoCAD
  • Vectorworks
Graphics & Presentation
  • Photoshop
  • InDesign
  • Acrobat
  • Keynote
  • Illustrator
  • ...etc.

Office Productivity
  • Word
  • Excel
  • Powerpoint
  • OpenOffice
  • ...etc.
Professional engagements:
2007-present: BIM presentation, training and consulting in the USA, France, Croatia, Hungary and Denmark

2002-present: Lecturer on BIM at ArchiCAD University events in Nottingham England and Innsbruck Austria

1990-2003 Presenter, lecturer and judge at AEC Systems, Build Boston and the Architectural CAD Shootout with Geoff Langdon

1987-1991: Charter member, board of directors, Integrated Construction Association

1987-1989: Director, Boston Computer Society/Construction Special Interest Group

Attendance at various AIA, AGC, and related events as time permits.
Projects/Clients: partial list
BIM Coordination:
  • Clark Construction with View by View
  • Hunt Construction with View by View
  • Rudolph & Sletten with View by View
  • McCarthy Building Companies with View by View
  • Anshen + Allen with View by View
  • East Bay Restaurant Supply
BIM & CAD Standards, Customization & Documentation
  • View by View, San Francisco CA
  • Quattrocchi Kwok Architects, Santa Rosa CA
  • M-NCPPC, Greenbelt MD
  • AXIA Architects, Santa Rosa CA
  • Jon Worden Architects, Healdsburg CA
  • Robert Orr Associates, New Haven CT
  • Peter Cadoux Architects, Westport CT
  • Rietveld Architects, New York City NY
  • S J Fenwick Associates, Linwood NJ
  • Penza + Bailey Architects, Baltimore MD
  • Patrick Sutton Architects, Baltimore MD
  • Hickock Warner Fox Architects, Washington DC
  • Horsey & Thorpe Architects, Washington DC
  • CORE group PC, Washington DC
  • Manion & Coratola Associates, Glen Echo MD
  • Rill & Decker Architects, PC, Bethesda MD
  • O'Neil & Manion Architects, Bethesda MD
  • Sterling Design Group, Annapolis MD
  • Terradome Corporation, Independence MO
Software Consulting & Localization:
  • Graphisoft, Budapest Hungary
  • IEZ/speedikon, Bensheim Germany
Master Planning & Urban Projects
  • Punta del Fraile SA, Algorrobo Chile
  • West Entry, Santa Rosa CA, AXIA architects
  • Southport Village Partners, Robert Orr Associates
  • Beachwalk Resort, Robert Orr Associates
  • Liberty Harbor, Robert Orr Associates
  • Westport Library, Westport CT, Robert Orr Associates
  • Walnut Beach Village, City of Milford CT, Jude Steele
  • Richardson Development, Ambergris Caye Belize
Commercial Projects
  • River Rock Conf Ctr, Geyserville CA, Rudolph & Sletten
  • Pauma Resort, Pauma Valley CA, View by View
  • Vitens Headquarters, Utrect NL, Rietveld Arch.
  • AIG Offices, Washington DC, John Worden Arch
  • Collier Shannon Scott Off., Wash. DC, Rill & Decker
  • Ballard Spahr Offices, Wash. DC, Hickock Warner Fox
  • Volta Bureau, Washington DC, Horsey & Thorpe
  • All Appliance Parts, Malden MA
  • 132 Brookline Avenue, Boston MA
Healthcare Projects
  • John Muir Medical Ctr, Walnut Creek, Clark Const.
  • John Muir Medical Ctr, Concord CA, Rudolph & Sletten
  • New Stanford Adult Hosp, Palo Alto CA, McCarthy
  • Lucile Packard Children's Hosp, Palo Alto CA, McCarthy
  • Pearl Street Medical Offices, Malden MA
Multi-Family Residential Projects
  • Rivermark, Santa Clara CA, Jon Worden Arch.
  • The Cooperage, San Francisco CA, John Worden Arch
  • Jennings Court, Santa Rosa CA, Jon Worden Arch.
Retail Projects
  • Sprint PCS stores, various locations, CORE group
  • French Country Living, Mclean VA, Jude Steele
  • Cameron's Seafoods, Bethesda MD, Jude Steele
  • JC Penny, Columbia MD, O'Neil & Manion Arch.
  • MDF, Cambridge MA, Jude Silver
Education Projects
  • American Canyon High School, Napa Valley CA, QKA
  • Healdsburg School, Healdsburg CA, Jude Steele
  • Carneros High School, Carneros CA, AXIA
  • Pine Valley Middle School, Danville CA, QKA
  • German Embassy School, Potomac MD, Metcalf Assoc.
  • Heartlight School, Chicago IL, Jude Steele
  • Cambridge School, Weston MA, Tom Evans
Residential Design
  • Wendt Residence, Santa Rosa CA, AXIA
  • Jackson Cottage, Alexander Valley CA, Jude Steele
  • Sacks Vineyard House, Healdsburg CA, Jude Steele
  • Roth Residence, Greenwich CT, Robert Orr
  • Schwartz Residence, Greenwich CT, Robert Orr
  • Mandel Addition, Westport CT, Peter Cadoux
  • Savitz Residence, Greenwich CT, Peter Cadoux
  • Cassilus Villa, Bronxville NY, Jude Steele
  • Hill Residence, Baltimore MD, Patrick Sutton
  • Miller Residence, Washington DC, Horsey & Thorpe
  • Kestel Residence, Potomac MD, Rill & Decker
  • Berkowitz Residence, Potomac MD, Rill & Decker
  • McDonald Residence, Potomac MD, Rill & Decker
  • Hurley Beach House, Bethany Beach MD, Rill & Decker
  • Berkowitz Residence, Rill & Decker
  • Melnick Residence, McLean VA, Rill & Decker
  • Deutsch Residence, Potomac MD, Rill & Decker
  • Mandel Addition, Bethesda MD, Rill & Decker
  • Begun Villa, Potomac MD, Rill & Decker
  • Courtyard Villa, Chevy Chase MD, Jude Steele
  • Zara Residence, Washington DC, Jude Steele
  • EAR Residence, Sandoval County NM, Jude Steele
  • Podesta Residence, Washington DC, Jude Steele
Employment history:
2013-2015 Hensel Phelps, BIM/VDC Manager, SoCal District
Management of BIM operations for major construction projects including hospital, airport, institutional, and government work. Participation in proposal development for transportation, medical, municipal, and educational construction projects. Coordination with the corporate office and other districts on the development of BIM/VDC standards.

Lohden Consulting, owner
Construction coordination, BIM modeling, process management and standards development for major architecture, engineering and construction companies on large institutional, commercial and infrastructure projects.

2007-2009 Lohden Consulting, owner, in collaboration with View by View
Construction coordination, BIM modeling, process management and standards development for major architecture, engineering and construction companies on large institutional, commercial and infrastructure projects.

1996-2007 Lohden Steele, principle partner. Projects, clients and associations in North America & Europe Consulting primarily to architectural firms on development and implementation of BIM and CAD standards and practices. Including design, production and documentation assistance on a wide range of building projects.

1990-1996 Integrated Construction Services, owner. Projects in New England & Washington DC area
Development of building modeling (BIM) practice through computer system integration and software customization in conjunction with an active practice of construction, facility and lease management

1986-1990 Lifespace Design & Construction Ltd, CEO. Projects in Boston & Eastern Massachusetts General contractor for residential, retail, office and development projects. Customized database for bookkeeping and estimating in 1988.

1980-1986 Lohden Furniture Systems, proprietor. Projects in Greater Boston Area Massachusetts Design, construction and installation of custom cabinetry and furniture systems including commercial offices and residential kitchens, libraries and entertainment centers.

References available on request.
Other interests:
  • Live theatre & music.
  • Art & architectural sightseeing.
  • Fine furniture & cabinet making.
  • Tennis, skiing, rowing & sailing.
  • Maths & sciences.