Expert witness services related to the design and construction of office buildings and office tenant spaces - Bernstein & Associates, Architects

EXPERT WITNESS SERVICES FOR OFFICE DESIGN AND CONSTRUCTION

Expert Witness in Office Design and Construction
Bernstein & Associates, Architects, through its principal William N. Bernstein, AIA, has provided expert witness services in matters involving the design and construction of offices and related properties. Attorneys litigating cases that involve construction defects, water infiltration and building envelope failures, curtain wall and storefront failures, tenant fit-out and build-out disputes, landlord-tenant matters regarding work letters and construction allowances, accessibility violations, fire safety and egress issues, mechanical, electrical, and IT/data system failures, acoustical and indoor-environmental-quality complaints, and other claims related to the design and construction of office buildings and office tenant spaces require an expert witness architect who understands both the applicable building codes and standards and the practical realities of how those requirements are applied in the design, construction, and renovation of real offices.

About Office Design and Construction
Office design and construction encompasses a range of commercial office facility types, including Class A, B, and C office buildings, corporate headquarters, single-tenant and multi-tenant office buildings, coworking and flex-office spaces, professional services offices, and tenant fit-outs within base buildings of varying ages and conditions.

The design and construction of office facilities is governed by a complex framework of technical standards, including the applicable building code (for example, in New York City, the New York City Building Code), the International Building Code, ICC A117.1, NFPA 101 Life Safety Code, ADA requirements (including the 2010 ADA Standards for Accessible Design), the Energy Conservation Construction Code, applicable mechanical and electrical codes, and the work letter, lease, and construction documents specific to each project.

Disputes commonly arise over construction defects affecting building envelopes, curtain walls, storefronts, roofs, and interior finishes; water infiltration; tenant fit-out and build-out work performed under landlord work letters and tenant improvement allowances; landlord-tenant matters regarding the scope, quality, and timing of construction work; non-compliant accessibility features at entrances, elevators, toilet rooms, and tenant spaces; inadequate fire-rated assemblies and egress; failures of mechanical, electrical, plumbing, sprinkler, and IT/data systems; and indoor-environmental-quality complaints. Responsibility for compliance with the applicable standards is shared, in different ways, among the landlord, the tenant, the design professional, the contractor, subcontractors, and the party responsible for ongoing maintenance, and litigation in this area frequently turns on the allocation of responsibility for design decisions, construction means and methods, and post-occupancy maintenance.

Expert Witness Services Related to Office Design and Construction
Expert witness services in office design and construction matters typically include a careful review of the project documents (drawings, specifications, submittals, RFIs, change orders, permits, certificates of occupancy, leases and work letters, tenant improvement schedules, and as-built conditions), a site survey to measure and document the conditions at issue, comparison of those conditions against the applicable building codes, life safety codes, accessibility standards, and industry standards of care, review of construction administration records and maintenance histories, and the preparation of clear, well-supported opinions regarding the cause of the defect or failure, the responsibility of the various parties, and the standard of care applicable to the design, construction, and maintenance of office facilities.

An effective office design and construction expert witness must be able to explain technical requirements — curtain wall and storefront detailing, fire-rated assembly construction, egress geometry, accessibility clearances at entrances and toilet rooms, MEP and IT/data system design, and the technical scope of tenant work letters and base-building/tenant interface conditions — in plain language to judges, juries, arbitrators, and mediators, and must have the credentials, written record, and courtroom-ready communication skills to render credible opinions.

Mr. Bernstein is a Yale-trained, NCARB-certified, LEED-accredited, registered architect. He has expertise in architectural design, engineering design, and construction as the founder/owner of an architectural firm, Bernstein & Associates, Architects, (1990-present) and as the founder/owner of a construction project management firm, Empire Projects, Inc. (2003-Present). He has been the expert witness (as of May 2026) on (40) cases involving design and construction (2006-present) across the United States and Internationally.

Contact
Please contact Bernstein & Associates, for expert witness services related to the design and construction of offices.