Narrow street

A narrow street is one whose mapped width falls below the Zoning Resolution's threshold for wide streets — the typical side street, as against the avenue. The classification reads from the City Map's legal street width, not from the pavement, and it matters because many bulk tables treat the two frontages differently: narrow-street rows commonly carry stricter envelopes, lower base heights, or smaller ceilings than wide-street rows in the same district.

The height rules for narrow buildings in dense districts — the sliver provisions — are a related but distinct idea: there the concern is the building's width, here the street's. A lot's street classification is a mapped fact, verifiable and worth verifying, since it can select the governing row of the district's tables.