Civil Engineering Firms

Civil engineering shapes how cities and neighborhoods evolve; the firms behind these projects often occupy unassuming storefronts in busy commercial corridors. 345 2nd Ave in Manhattan’s Flatiron District is one such address, putting structural design and site development within reach of local developers and property owners. Whether updating infrastructure or planning new builds, these firms act as the quiet backbone of urban growth.

That address anchors the block between 21st and 22nd Streets, a neighborhood where zoning changes and renovation projects keep engineers busy year-round. From feasibility studies to permit filings, the scope of work typically spans residential subdivisions, retail fit-outs, and municipal upgrades. A quick call ahead can confirm which services are currently available.

Find the map and step-by-step directions on Google Maps. It’s the same block where delivery vans double-park at noon.