Norwalk, CT Outdoor Lighting: Light Trespass & Shielding (2026)

Norwalk Code § 118-1451, the site plan review section of the zoning regulations, sets the city's core light-trespass standard. " This standard applies whenever a project is subject to site plan review, which under § 118-1451A covers uses and structures specified elsewhere in the zoning regulations, typically nonresidential, multifamily, and commercial or industrial development rather than a single-family home improving its own yard lighting. The Commission also treats illumination as part of a broader impact test: § 118-1451C(6) directs that traffic access, parking, landscaping, illumination and utilities together must not be detrimental to the safe and orderly development of any adjacent property, so a lighting plan can be flagged even if no single fixture violates the shielding rule on its own.

Applications go through Commission staff, who may refer the plan to other city departments for review and recommendation under § 118-1451B(12), and no certificate of zoning compliance issues under § 118-1451B(10) until the approved site improvements, including exterior lighting, are actually completed or bonded. Because the ordinance text does not print a footcandle table or fixture-shielding diagram in this chapter, applicants should expect the Commission to apply the "reasonable intensity" and "shielded" language on a project-by-project basis at the site plan hearing rather than against a fixed numeric ceiling.