Structural Engineering

We offer our clients 65 years of experience and an extensive array of structural design-related services. Our shared knowledge includes virtually all contemporary structural building systems, plus outdated systems often encountered in existing buildings.

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SUNY Brockport Courtyard

Landscape Architecture

In addition to a full range of landscape architecture services, our site department has achieved a singular reputation for specialty detailing of site features, green infrastructure, and facility development planning.

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Onondaga County Courthouse

Building Envelope Systems

This area of our practice was formed in 2004 to answer the particular needs of building owners and facility managers. Services include contemporary and historic masonry façades, and specific building science services.

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Welcome to
Klepper, Hahn & Hyatt

Klepper, Hahn & Hyatt is a multi-disciplinary design firm specializing in structural engineering, landscape architecture, and building envelope systems. We serve the northeastern United States from our office in Central New York. Our firm works in both the public and private sectors to develop projects which are cost-effective, sustainable, and responsive to the needs of our clients.