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Daylighting delivers comfort and energy benefits when it’s designed and controlled. Early simulations guide window-to-wall ratios, glazing selection, and zone depths to achieve target illuminance without excessive solar gain. Exterior shading and light shelves can redirect light deeper into spaces and cut contrast at the glass. Continuous dimming daylight controls, calibrated with photosensors, reduce electric lighting smoothly as daylight increases—maintaining visual comfort and saving energy. Relying on manual blinds leads to inconsistent outcomes and “closed-blind syndrome.” Dark tints suppress view quality and daylight, undermining the core intent. Fixed lighting ignores available daylight and wastes energy. A simulation-driven façade plus responsive controls balances visual comfort, occupant satisfaction, and measurable savings, making documentation straightforward for both daylight and lighting power performance in LEED.