Exterior lighting standards for all uses in all Zoning Districts are as follows unless specifically noted to apply only to uses requiring site development plan approval. Regulation of exterior lighting throughout the Town in both residential and non-residential zoning districts is intended to avoid excessively bright lighting that would cause direct or indirect glare, up-cast lighting or sky-glow, to avoid excessive contrast between lighted and unlighted sites creating hazardous driving or walking conditions, to avoid nuisance light spillover and to avoid glare affecting nearby residential properties or traffic. Regulation of exterior lighting is also intended to conserve energy and resources. Lighting is to be designed to be subtle and ancillary to the overall site design of buildings and exterior facilities, providing the minimal lighting necessary to carry out the functional aspects of site operations while ensuring safety and minimization of impacts to abutting property, human health, sensitive wildlife, and associated habitats, particularly wetlands/watercourses, flora, and fauna resources. Energy efficient LED lights are encouraged when replacing or installing new exterior lights.
(1) Exterior lighting shall include but shall not be limited to all lights mounted on the exterior of buildings and other similar structures, as well as free-standing and ground lights. Lighting shall be designed and maintained in a manner that is consistent and compatible with area residential land uses and properties.
(2) Lighting shall be directed and arranged so as to reflect light away from adjoining streets and properties. Lighting shall not be directed towards or project onto neighboring properties. Lighting shall be located so not to interfere or conflict with street traffic movements and any traffic signals, or parking and pedestrian facilities.
(3) All new lighting shall be dark-sky compliant, utilizing fixed light fixtures which are fully shielded and full cutoff, the design, scale and massing of which shall be the minimal necessary. All new lights shall include recessed and hidden lenses and fixtures. All exterior lights shall be designed so that filaments, light sources, and lenses are shielded and covered by the fixture housing made of an opaque material in such that they will not be visible horizontally or from neighboring properties and abutting streets.
(4) High pressure sodium lights, as well as lights producing varying intensities, changing colors, flickering, flashing (except identification lighting as required by the Federal Aviation Authority), moving lights and search lights shall be prohibited, except for lighting used during and by emergency service providers. Internally illuminated signs shall be prohibited.
(5) Holiday light exemption. Temporary low-voltage (mini lights) holiday decoration lighting shall be exempt from these standards provided such is clearly incidental, customary, and commonly associated with a federal, state, local or religious holiday observance, and provided illumination of said holiday lighting is limited to a reasonable time period associated with the duration of the related holiday.
(6) For uses requiring site development plan approval:
(a) The Planning Board may require the replacement or modification of existing light fixtures deemed noncompatible to these standards.
(b) The Planning Board may require site lights to be turned off or reduced in light intensity on all or part of the site at different times of the day, such as after a facility is closed or during periods of reduced site usage.
(c) The intensity of site lighting shall also not result in unnecessary light spillage over wetland or watercourse resources.
(d) The design or style of light fixtures and their support structures shall be consistent and complementary to the site architecture for uses requiring site development plan approval as otherwise required at the discretion of the Planning Board.
(e) Such requirements above shall be established by the Planning Board as part of the site development plan review process.
(7) Maximum height of light fixtures and mounting.
(a) The height of a freestanding light shall be measured from the base ground elevation (including any base) to the highest point of the light fixture and/or post.
(b) A freestanding light height shall be kept as low as practical. The maximum height of a freestanding light shall be the following based on the zoning district in which said light is installed:
Zoning District | Maximum Light Height (*) |
|---|
R-1, R-2, R-4, R-1/2, R-1/4 R-MF4, R-MF6, PD-CCRC NB, PO | 15 feet |
GB, RO | 20 feet |
(*) | Measured from the ground elevation to the highest point of the light fixture and/or supporting pole. |
(c) The maximum height of a wall-mounted light shall be below the roof eave immediately above said light fixture at place of installation but not exceed a maximum of 15 feet above the area intended to be lighted. For any use requiring site development plan approval, the Planning Board may modify the maximum mounting height based on specific circumstances where a higher placement would be more appropriate to the setting and facility, and/or where overall lighting is otherwise reduced. Recessed and hidden lighting under eaves, porch roofs and other architectural structures shall be preferred to other wall mounting lights.
(8) Maximum light intensity.
(a) No exterior lighting shall be used in a manner which produces a concentration of light intensity or a direct glare on neighboring properties or abutting streets. Exterior lighting shall be designed to avoid unnecessary light spillage beyond the area specifically intended to be illuminated.
(b) The maximum light intensity at the property line shall be the following based on the Zoning District said lights are installed:
Zoning District | Maximum Light Intensity at Property Line Measured at Ground Level | Maximum Light Source Color (in degrees Kelvin) |
|---|
R-1, R-2, R-4, R-1/2, R-1/4, NB, PO | 0.50 footcandles (*) (**) | <3,000 Kelvin |
GB, RO, PD-CCRC, R-MF4, R-MF6 | 0.25 footcandles (*) | <3,000 Kelvin |
(*) | See definition in § 250-5 — One footcandle is equal to one lumen. Footcandle measurements are made with a photometric light meter and with a specified horizontal orientation. |
(**) | For R-1, R-2, R-4, R-1/2, R-1/4 Residential Zoning Districts — Residential light fixtures shall be of low wattage intensity. Residential light fixtures placed at the head of a driveway near the fronting access street shall not exceed an equivalent incandescent light of 25 watts. |
(c) For uses requiring site development plan approval, parking lot, walkway and other site lighting intensity shall not exceed a maintained average illumination level of 3/4 (0.75) to five footcandles at the ground.
(d) Overnight security lighting shall be installed with motion detector sensors and time sensors to minimize impacts on neighboring properties and abutting streets.
(9) Replacement conformance required.
(a) Existing lights consisting of flood lights, spotlights, and other lights directed towards or projecting onto neighboring lots which do not conform to these standards as of the effective date of these standards shall be replaced or modified to conforming lights, by no later than three months after the effective date of Local Law No. 1 of 2024, as adopted on June 25, 2024.
(b) Other types of existing lights which do not conform to these standards as of the effective date of these standards are encouraged to be replaced, updated, or modified to conforming light fixtures, and lights are encouraged to be turned off between 12:00 a.m. (midnight) through 5:00 a.m. or controlled by a motion sensor, for uses and lots not requiring site development plan approval.
(c) For those uses and lots requiring site development plan approval, the Planning Board may require such other types of nonconforming lights to be replaced, updated, or modified upon an application to redevelop or modify such uses or lots.
(d) Noncompliance shall be deemed a zoning violation, subject to the provisions and standards of Article
XV, Administration and Enforcement, as may be amended from time to time.