This section is from the book "The Building Code Of The City Of Boston", by City of Boston Building Department. Also available from Amazon: Building Code of the City of Boston.
Par 1. - No wooden building hereafter erected, to be used as a habitation, shall be more than three stories nor more than forty feet in height above the first floor line; nor shall any part of such a building, eaves and cornices excepted, which is to be occupied by three or more families, be placed nearer than five feet from any adjoining lot lines, and if built on land of the same owner it shall not be nearer than ten feet from any other building; nor shall any part of such wooden building, which is to be occupied by less than three families and is less than three stories in height, be nearer than five feet from the line of any adjoining lot; nor shall any lot line be moved nearer than five feet from any wooden building, or, if built on land of the same owner, nearer than ten feet from any other building, eaves and cornices excepted, unless in either case the wall on the side toward such lot or adjoining building is constructed as a brick or concrete wall not less than eight inches thick and carried twelve inches above the . roof, all openings therein to be protected by wire glass set in metal frames and sash. Wooden buildings hereafter constructed to form a block of two or more houses shall have brick or concrete party walls between adjoining houses, which shall be not less than eight inches thick, shall be carried twelve inches above the roof an hall be capped with a metallic covering.
Par. 2. - No wooden building hereafter erected to be used in whole or in part as a habitation shall exceed twenty-two hundred square feet in area, and no such existing building shall be enlarged to exceed twenty-two hundred square feet in area.
Par. 3. - No wooden building hereafter erected to be used for purposes other than habitation shall exceed forty feet in height above the first floor line, and no such building, except buildings erected for the purpose of storing ice, which shall not be erected within five hundred feet of any other building, shall exceed twenty-two hundred feet in area unless the external parts are covered with incombustible material approved by the commissioner, and no such building shall exceed five thousand square feet in area in any event: provided, however, that nothing in this section shall be construed to affect the provisions of section nine of this act; and no such existing building shall be altered or enlarged to exceed forty feet in height above the first floor line or twenty-two hundred square feet in area, unless the external parts of the whole building are covered with incombustible material approved by the commissioner, or to exceed five thousand square feet in area in any event.
Par. 3A. - Wooden buildings erected for purposes other than habitation shall not be situated within five . feet of the line of the lot unless the side wall on such line or lines be of brick or concrete, carried above the roof at least twelve inches and capped with a metallic covering. All openings in such outer walls shall be protected by wire glass set in metal frames and sash.
[1913, c. 704, sect. 2; 1914, c. 248, sect. 1; 1914, c. 782, sect. 8.]
[General Laws, c. 143, Sects. 17, 18 and 19. See Appendix.]
 
Continue to: