zontal plane is projected to such boundary and. from the position at which it first intersects the boundary, another rectangular plane, the base whereof is parallel and level with the sill of the window and has a length equal to the length of the base of the rectangular horizontal plane, is projected, towards the site and above the rectangu- lar horizontal plane, at an angle of 804" from the horizontal, no part of the building, or of any other building within such site, protrudes above such inclined plane:
Provided that, where there is a scavenging lane or street less than fifteen feet wide adjacent to and parallel with such boundary, the boundary shall, for the purposes of this sub-paragraph be deemed to be at a position five feet beyond such boundary.
(2) The rectangular horizontal plane shall be such that-
(4) it has an area of not less than two hundred and
Twenty-five square feet; and
(6) the minimum length of the base is not less than
seven feet six inches; and
(c) the minimum length of the sides at right angles to the base, between the wall in which the window is sited and any other wall or building opposita thereto within the boundary of the site on which the building is erected, is not less than fifteen feet; or
(d) where the window opens on to an area bounded on the side opposite to the window by a boundary of the site on which the building is crected, the minimum length of the sides at right angles to the base, between the wall in which the window is sited and such boundary, is not less than seven feet six inches; or
(e) where the window opens on to an area bounded on the side opposite to the window by a boundary of the site on which the building is erected and there is a scavenging lane or street less than fifteen feet wide adjacent to and parallel with such boundary, the minimum length of the sides at right angles to the base, between the wall in which the window is sited and a line five feet
Restriction
do distance ony part of poona may
be from pre- wribed win- dow.
Lighting and ventilation of rooms used
or intended
to be used
for offices.
beyond such boundary or, where such scavenging lane or street is less than ten feet wide, between the wall in which the window is sited and a line drawn along the centre line of the scavenging lane or street, is not less than seven feet six inches.
(3) For the purposes of this regulation-
(a) "base", when used in relation to the rectangular borizontal plane, means that side of the rectangular horizontal plane common with the line of the sill of the window; "rectangular horizontal plane" means a rectangular plane at the level of the sill of the window having the minimum area and minimum dimensions prescribed by paragraph (2); "window" includes french window; and
(b) the sill of a window shall be deemed to be at a level three feet six inches above the level of the floor of the room for which the window is provided, whether or not the sill is at such level.
26B. No part of any room used for habitation shall be more than thirty feet, measured within the room, from a prescribed window which faces directly into the external air or, where, under and in accordance with regulation 27, a window opens on to an enclosed verandah or balcony or on to a conservatory or on to any similar enclosed place or is, under regulation 67, permitted to open on to an un- enclosed verandah or balcony or any other uocnclosed place, from the outer edge of the verandah, balcony, conservatory or enclosed or unenclosed place, as the case may be.
26C. (1) Every room used or intended to be used for the purposes of an office shall be provided with natural lighting and ventilation.
(2) Such natural lighting and ventilation shall be pro- vided by means of one or more windows which shall be-
(@) so constructed that-
(i) the aggregate superficial area of glass in the window or windows is not less than one-tenth of the area of the floor of the room; and
(ii) the windows can, to an extent at least equal
in the aggregate to one-sixteenth of the area of the floor of the room be opened in such manner that the top of the opening of each window is at
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