105 CMR 410.430

Natural Light and Obstructions

Year: 2026Length: 96 wordsOfficial source
(A) The owner shall provide transparent or translucent glass which admits unobstructed light from the outdoors equal in area to a minimum 8% of the entire floor area in: (1) Habitable rooms other than a kitchen. (2) Kitchens which have a floor area greater than 70 square feet. (B) If any light obstructing structure is located less than three feet from the outside of and extends to a level above the lower level of the transparent or translucent glass, that portion so obstructed shall not be included as contributing to the required minimum total glass area.