Outdoor Lighting in Lower Merion, PA (2026)
2 verified outdoor lighting rules for Lower Merion, Pennsylvania, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Lower Merion Township requires outdoor lighting to be aimed so only the lot itself is illuminated and bars any uplight for parking, driveway, sidewalk, and hardscape luminaires, under Township Code Section 105-12, a dark-sky style standard enforced through the Building and Planning Department's lighting permit review.
Lower Merion Outdoor Lighting Shielding Rules
Some RestrictionsLower Merion Township Code § 105-12.A(1)-(2), B(1)
Outdoor lighting shall be selected, located and focused so that only the building, structure, sign, or other open area on the lot is illuminated. ... Outdoor lighting shall be aimed and/or shielded so that the light shall not be directed onto any adjacent lot, public street or public right-of-way. ... Uplight. ... All luminaires utilized for illuminating parking areas, driveways, sidewalks, wal...
Light Trespass & Shielding
Lower Merion Township caps light spilling onto neighboring land at 0.1 to 0.3 footcandle at the property line depending on the adjoining use, and limits most luminaire mounting heights to 12 feet, under Township Code Section 105-12.
Lower Merion Light Trespass Standards
Some RestrictionsLower Merion Township Code § 105-12.B(2), C(1)
Luminaires shall not be mounted in excess of 12 feet above finished grade of the surface being illuminated, unless it can be demonstrated that taller lighting would not increase light trespass or glare onto adjacent properties. ... Light trespass shall be controlled as follows: Table 13.3 Light Trespass Location Maximum Vertical Illuminance at any point in the perimeter plane of the property Lo...
Looking for Montgomery County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Lower Merion city rules.
Outdoor Lighting in Montgomery County →