The Washington herald., 1920-08-31
OFFICIAL NOTICES.
ZoNING COMMISSION OF THE
DISTRICT OF COLUMBIA.
Washington, August 80, 1870.
zONING REGULATIONS.

March 1, lS-O, entitled An Act TO regula te
the height. area and use OF buildings in the
District Of Columbia and TO create q Zoning
Commission and for other purposes" (PubIic
No. l9o' GBth Congressl provides that within
six months after passage Of said Act and
after public notice and hearing. the Zoniug
commission shall divide the District of
Columbia into certain districts to be known
respectively as Height. Area, and Use Dis
tricts, and shall adopt regulat tions specify
ing the height and area OF buildings there
after TO be erected or altered therein, and
the purposes for which buildings and prem
lses therein may or may not be used
NOW, therefore, the said Toning Commits
sion after public notice and hearing as pre-
scribed by law has established and by
these regulations and maps accompanying
them, does hereby establish said height
area and use districts and it does hereby
adopt the following regulations, under the
authority OF said lnw and subject to the
pc e1alties prescribed in said law for the vio-
latlon OF any OF said regulations. ,
The height, area and use districts pre-
scribed in said regulations are shown on
the accompanying set Of maps Of the Dis
trict OF Columbia, and the precise boundh-
ries Of the districts are shown in the "Oni-
cial Height, Area and Use Aliases" on file
IN the Office Of the Engineer Commissioner
OF the District of Columbia. These maps
and aliases are ereby made parts of said
regulations
These regulations shall become effective
on and after August 80, 1920 aud shall re-
main in force until modified or amended by
subsequent regulations adopted by said ZOn-
ing Commission after public notice and
hearing as prescribed by law.
Except as specifically superseded by these
regulations, the Building Regulations shall
remain In fun force ard eject.
SECTION l-DEFINITI0NS.
For the purpose Of these regulations Ger
tain terms anil words are herewith defined
as follows; but such definitions shall not be
held TO modify or affect in any way the
legal interpretations Of such terms or words
where used in other regulations.
Words used in the present tense include
the future words In the singular number
inrlude the plural uumher. and words in
the plural number include the singular num-
Der; the word lot includes the word
plot; the word building" includes the
word structure: the word Shall is
mandatory and not directory. Any words
not herein defined shall be construed as de-
hned or construed in the Building Regula-
tiOns.
Accessory Building: subordinate build
ing located In and occupying not more than
80 per cent Of the rear yard OF the main
1 building, whose use is incidental to that Of
the main building and which does not eK-
ceed II feet in height above the ground
level.
Alley: public way designated as an
alley in the records OF the Surveyor, District
Of Columbia
Apartment; A household unit in a tene-
ment or apartment house, suitable for occu-
punCy by or more persons.
Area. See Building Area
Building. structure having a roof sup
ported by columns or walls for the shelter
support or enclosure Of persons. animals or
chattels: and when separated by division
walls from the ground up each portion Of
such building shall be deemed a separate
building.
Building Area: The maximum horizontal
projected ares Of building and its Hcces-
sorry buildings. excluding open steps, ter
races. and Cornices.
Building Line: line beyond which prop
rrt! owners or others have no legal or vest
ed right TO extend Il building or any part
thereof without special permission and ap-
proval Of the proper authorities: ordinarily
line Of demHrkHtiOn between public and
private property. but also applied to 4 build.
ing restriction line. when recorded on the
PIatS Of the Surveyors O1ice. District Of
Columbia.
Cellar: That portion Of building below
the hrst door josts the floor Of which is
more than one-haif the clear ceiling height
below the adjacent ground. Such Il story
may not be- used for habitation.
Community House group Of not more
than three buildings so designed A. to give
the appearance OF single building anI
erected simultaneously.
Depth Of Rear Nard. The main horizontal
distance between the rear line OF the build
ing and the center line Of the alley where
an alley exists otherwise the rear lot line
District: Sections Of the District Of Co
lumbia for which the regulations governing
the height. the areB ur the Use Of build
ngs and premises are the same.
Enclosed Court: An open uno"~upied
space surrounded on all sides by walls. or
by walls and lot line.
Garuge: ANY premises used for housing
Of steam or motor driven vehicles. or where
such vehicles are equipped for operation.
repaired or kept for hire or sale. not in
Guiding exhibition or show rooms for model
cars
Height Of Building. In the 10 foot -
foot and - foot height districts, the height
is Of the vertical distance from the level Of
the curb opposite the middle Of the front
Of the building to the top Of any enclosure
wall or to the highest point Of the roof.
Provided. that in the - foot height district
in the case Of 4 building located on ter
race the height above the curb level may
be increased by an amount equal TO the
height Of the terrace above the same curb
level but rot to exceed = feet In the 40
foot height district the height is the verti-
cal distance from the ground level at the
middle Of the front Of the building 10 the
ceiling Of the top story.
Height Of Court or Yard: The vertical
distance from the lowest level Of such court
or yard to the highest point ef ans bound
ing wall.
Hotel: Every place where food and lodg-
ing are provided for transient guests.
Length Of Open Court: The mean hori-
zOntaI distance between the open and closed
ends Of the court.
Lot: The land bounded by definite lines
and occupied 10 be occupied by a building
and its accessory buildings and including
the open spaces required under these regu-
Iations. A lot may OF may not be the land
recorded the records Of the Surveyor
District Of Columbia.
Lot, Corner: Lot Triangular: lot
fronting on two or more streets at their
jrnCtion. said streets forming with each other
an angle Of A. degrees or more, is corner
lot. When the angie formed by the inter
sectng streets is less than - degrees, such
lot shall be known as triangular lot.
For the purpose Of determining the percent
age Of lot occupancy. corner and triangular
lots shall be assumed to have an area not
age not greater than 100 feet on either Of
the inte-Secting streets.
Lot, Interior: lot other than a corner
lot triangular lot
Lot Through An interior lot having
frontage on two streets.
lot Lines: The lines bounding a lot as
defined herein.
Non-conforming use: use Of a building
or premise occupied by or, il vacant. classi-
fed as, u use that does not conform with
the regulations of the use district in which
such buildings premises is located.
Open Court: An open unoccupied space on
the same lot with building. extending to
and opening upon a street, alley or yard.
Percentage of Lot Occupancy: That pro-
portion Of such area of lot as lies within
lot lines and building lines as defined herein
which is occupied or which may be occupied
under these regulations as building area.
Private Garage: A garage housing not
more than four steam or motor driven We
hicles. all the property OF one owner.
Private Stable: A stable housing not
more than four horses and four vehicles, all
the property of one owner
Public Garage or Public Stable: garage