The Construction Cluster „DUNDJER“, together with a number of its members, is participating, as a leading partner, in a national project co-financed by the National Agency for Regional Development, which deals with innovative implementation of LED lamps in the system of public enlighting by introducing distance control. Although outdoor lighting is imperative to illuminate sidewalks, parking lots and driveways for safety and convenience reasons, it can alter a site's nocturnal ecosystem and limit sky observations. Therfore, in order to avoid light pollution, the design of external lighting should be in accordance with the following:• To design only the strict necessary external lighting and to ensure that external lighting is concentrated in the apropriate areas;• To avoid disturbance on animal and human health and psychology;• To avoid disruption of ecosystems;• To reduce sky glow and glare;• To improve nocturnal sky observations (effects on astronomy). According to LEED and BREEAM norms, the method for assessment of light pollution is developed. This method will be used in design and calculation of enlighting in frame of noted project. The key study is realized in the Municipalities Knjaževac, Bela Palanka, and Preševo. The assessment methodology is presented in this paper.

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