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Rowlett council asks staff to tighten residential lighting standards, focus on shielding and lower foot-candle limits
Summary
Staff presented a comparative review showing Rowlett's residential off-site illumination limit (1.0 foot-candle) is more permissive than several neighboring cities. Council leaned toward lowering the residential limit and emphasized fixture shielding, directing staff to draft specific code language for council review.
Rowlett City Council on Jan. 5 reviewed staff's comparative analysis of residential lighting standards and asked staff to draft tighter rules that emphasize shielding, fixture cutoffs and lower off-site illumination limits.
A member of the public registered to speak (Mark Tashic) urged strict lakefront protections and pointed staff to examples in Heath and Plano that set low foot-candle limits for single-family neighborhoods. Staff presenter Derek explained that Rowlett's current development code allows up to 1.0 foot-candle of light to spill onto adjacent property and that several peer cities use more stringent limits (Plano and Richardson cite 0.25—.1 foot-candles for certain residential designations). Derek told the council the city's code provides general guiding principles but lacks numeric specificity for residential versus commercial lighting.
Council discussion: Members focused on two interrelated objectives: limiting light trespass at property lines and ensuring adequate safety lighting. Several council members said shielding and fixture design (cutoff angles) are more important than a single numeric threshold; others argued for adopting a lower numeric limit, with 0.25 foot-candle discussed as a target. Legal and administrative staff cautioned about unintended impacts of strict cutoffs in sloped or lakefront sites and asked staff to build flexibility for site conditions while prioritizing protection of neighbors.
Key directives and next steps: Council asked staff to return with draft ordinance language that differentiates residential, multifamily and commercial lighting rules, recommends a residential off-site illumination threshold (staff to propose options such as 0.25 or 0.5 foot-candles), adds explicit shielding/cutoff fixture requirements (90-degree cutoff discussed), and identifies when a photometric study should be required for new installations or controversial changes. Council did not adopt a final numeric standard at the meeting but signaled preference for a more protective residential standard and stronger enforcement options.
