Evening star. [volume] (Washington, D.C.) 1854-1972, 1905-10-14
Light and Ventilation.

{ The new regulation follows:
Section 80, paragraph A. Every building
hereafter erected in the District OF Co.
Iumbia shall have sufficient light and VEN
tlation, in the Judgment of the Commits
sioners of the District of Columbia, for the
purposes for which 1t is to be used. In the
Determination of the sufficiency of light
anc ventilation due consideration VIII De
Given to the permissible construction on
adjacent lots or parcels of land of buildings
authorized by the building regulations
Paragraph B. Every building hereafter
erected, designed for habitation, except sta
bles fronting on an alley or alleys, shall
be constructed so as not to occupy more
than 80 per centum OF corner lot ana
u per centum of an interior lot, provided
that If such building is adjacent to a public
alley or alleys either on its rear or any
side or on both rear. side or sides. she
width of the alley or alleys on which such
building abuts may be considered in cal
culating the area of lot or lots or parcels
of ground permitted to be built over; eX-
cept that on interior lots or parcels OF
ground no building shall occupy more than
50 per centum of the area of such lot OF
lots or parcels of ground: and provided
further, that where building restriction
lines exist on such lot or lots or parcels or
ground that portion of the lot or lots 81
parcel of ground between the building re-
striction line and the street line shall not
be considered in computing the per centum
of area herein permitted to be occupied by
such building. The area occupied by shafts
or wells for closets. bath rooms and other
similar purposes shall not be considered IL
calculating the area of the lot to be &C.
cupied by such building.
Future Construction.
Paragraph C-Every building hereafter
erected, designed for habitation. shall have
in it's rear a yard extending across the en-
tire width of the lot, which may be in
cluded In computing the space reserved for
light and ventilation as required in para
graph A of these regulations, which yard
shall be unobStructed from ground TO sky,
except that approved fire escapes, unin-
closed stairways or uninclosed porches may
be erected within such space, provided they
do not project more than five feet from the
rear of such building. The depth of such
yard where the building occupying the lot
is twenty feet or less In height shall be not
less than nine feet and for each increase
of five feet over twenty feet in height of
building there shall be an increase of six
inches in depth of yard provided that IL a
public alley exists adjacent to the rear of
may be included in calculating the depth
of such yard, but In no case shall there be
less than five feet of unobstructed yard.
1.-THE height of such building shall be
measured from the estab lished grade of the
adjacent alley. or If there be no alley, OF
the adjacent street, to the highest point of
the adjacent cornice cornices in accord
ance with the provisions of subsection
Lots of triangular or irregular shape or
corner lots. where the adjacent lot extends
from street to street or from street to a
public alley, not less than ten feet wide, or
where provisions for light and ventilation
are provided to the satisfaction of the Com
missioners, as required by paragraph A
of this regula tion. may be excepted from
the requirement of paragraphs b and c.
of this regulation.
Unobstructed Space.
Paragraph D-No Enclosed court, for a
building twenty feet or less in height shall
be less than twelve feet in each dimension
of unobstructed space open from ground to
sky. For each additional five feet in
height OF building there shall be an in
crease of six inches in each dimension of
nnobstructed space. The measurement of
height of building shall be taken from the
bottom of the court TO the highest point of
the cornice or cornfces of the adjacent roof
or roofs. Every inclossd court shall have
one or more horizontal intakes situated at
or near the bottom of the court and con-
Meeting directly with the street or yard,
which Intake shall be not less than twenty
feet cross-section and shall be so designed
as to allow free passage OF air.
Paragraph E-rSo court open at one end !,
for a building twenty feet or less in height,
shall be less than seven feet In its smallest
dimensions OF unobstructed space, open
from bottom of court to sky. For each In
crease of Ave feet In height of building over
inches In width. and for each additional
thirty feet orsSraction thereof In excess of
thirty feet in length there shall be an In
crease Of SIX inches In width The measures