A. 
General: Except as herein provided, a part of any building hereafter erected and additions to an existing building heretofore erected shall not project beyond the lot lines or beyond the building line when such line is established by the zoning law or any other statute controlling building construction.
B. 
Below grade: A part of a building hereafter erected below grade that is necessary for structural support of the building shall not project beyond the lot lines, except that the footings of street walls or their supports located at least eight feet (2,438 mm) below grade may project not more than 12 inches (305 mm) beyond the street lot line.
C. 
Above grade: All projections hereafter permitted beyond the street lot line or the building line above grade shall be so constructed as to be readily removable without endangering the safety of the building.
D. 
Projections necessary for safety: In any specific application, the Building Inspector may designate by approved rules such architectural features and accessories which are deemed desirable or necessary for the health or safety of the public and the extent to which they may project beyond the street lot line or the building line where such is established by statute, subject to all provisions and restrictions that may otherwise be prescribed by law or rule of the authorities having jurisdiction over streets or public spaces.
E. 
Permit revocable: Any permit granted or permission expressed or implied in the provisions of this code to construct a building so as to project beyond the street lot line or building line shall be revocable by the jurisdiction at will.
F. 
Existing encroachments: Parts of existing buildings and structures which already project beyond the street lot line or building line may be maintained as constructed until their removal is directed by the proper authorities of the jurisdiction.
A. 
General: Subject to such provisions as may be otherwise prescribed by law or by rules of the authorities having jurisdiction over streets, highways, and public spaces, the following projections, as described in Subsections B through K(1) below, shall be permitted beyond the street lot line or the building line, as the case may be.
B. 
Cornices and eaves: Main cornices or roof eaves located at least 12 feet (3,658 mm) above the curb level shall project not more than three feet (914 mm).
C. 
Architectural decorations: Belt courses, lintels, sills, architraves, pediments and similar architectural decorations shall project not more than 4 inches (102 mm) when less than 10 feet (3,048 mm) above the curb level, and not more than 10 inches (254 mm) when 10 feet (3,048 mm) or more above the curb level.
D. 
Ornamental columns: Ornamental columns, or pilasters, including the bases and moldings which emphasize the main entrance of the building, shall project not more than 12 inches (305 mm).
E. 
Entrance steps: Entrance steps and doors shall project not more than 12 inches (305 mm) and shall be guarded by check pieces not less than three feet (914 mm) high, or shall be located between ornamental columns or pilasters.
F. 
Oriel windows: Oriel windows with the lowest portion at least 10 feet (3,048 mm) above the curb level shall project not more than two feet (762 mm).
G. 
Balconies: Balconies located at least 10 feet (3,048 mm) above the curb level shall project not more than three feet (914 mm), except that when the balcony is required in connection with a fire escape or exterior stairway as an element of a means of egress, the projection shall not exceed four feet (1219 mm).
H. 
Awnings: Retractable or fixed awnings shall have clearance above the grade and shall be installed in accordance with the requirements of § 334-26.
I. 
Awnings covers or boxes: Awning covers or boxes located at least eight feet (2,438 mm) above the curb level shall not project more than three feet (914 mm).
J. 
Marquees: For the purpose of this section, a marquee shall include any object or decoration attached to or a part of said marquee.
(1) 
Projection and clearance: The horizontal clearance between a marquee and the curbline shall be not less than two feet (610 mm). A marquee projecting more than 2/3 of the distance from the property line to the curbline shall be not less than 10 feet (3,048 mm) above the ground or pavement below.
(2) 
Thickness: The maximum height or thickness of a marquee measured vertically from its lowest to its highest point shall not exceed three feet (914 mm) when the marquee projects more than 2/3 of the distance from the property line to the curbline, and shall not exceed nine feet (2,743 mm) when the marquee is less than 2/3 of the distance from the property line to the curbline.
(3) 
Roof construction: The roof or any part thereof may be a skylight of approved plastics, or wired glass not less than 1/4 inch thick with a single pane not more than 18 inches (457 mm) wide. Every roof and skylight of a marquee shall be sloped to downspouts which shall conduct any drainage from the marquee not to spill over the sidewalk.
(4) 
Location prohibited: Every marquee shall be so located as not to interfere with the operation of any exterior standpipe, and not to obstruct the clear passage of stairways or exit discharge from the building or the installation or maintenance of street lighting.
(5) 
Construction: A marquee shall be supported entirely from the building and constructed of noncombustible material. Marquees shall be designed and constructed to withstand wind or other lateral loads and live loads as required in Article 9 of this code. Structural members shall be protected to prevent deterioration.
K. 
Vaults: Vaults below the sidewalk level shall extend not closer than three feet (914 mm) to the curbline; and the construction and use of such vaults shall be subject to the terms and conditions of the authority or legislative body having jurisdiction.
(1) 
Areaways: Areaways shall not project beyond the street lot line more than four feet (1,219 mm), provided that every such areaway shall be covered over at the street grade by an approved grating of metal or other noncombustible material.
A. 
General: A part of any building or structure shall not extend into side courts, inner courts or yards required for light and ventilation of habitable and occupiable rooms by the provisions of the Zoning Law[1] or other statutes controlling building construction, except as hereinafter provided; but the encroachment shall not exceed 20% of the legal area of yard or court required for light and ventilation purposes.
[1]
Editor's Note: See Ch. 381, Zoning.
B. 
Roof eaves: Roof eaves shall project not more than three feet (914 mm) beyond the face of the wall.
C. 
Steps and architectural features: Steps, window sills, belt courses and similar architectural features, rain leaders and chimneys shall project not more than two feet (610 mm) beyond the face of the wall.
D. 
Exterior stairways and fire escapes: Outside stairways, smokeproof tower balconies, fire escapes or other required elements of a means of egress shall not project more than four feet (1,219 mm) beyond the face of the wall.
A. 
Alley projections: The permissible projection beyond street lot lines shall apply in general to building projections into alleyways, except as may be modified by the authority having jurisdiction or by special deed restriction.
B. 
Special permits: When authorized by special permit, vestibules and storm doors may be erected for periods of time not exceeding seven months in any one year, and shall not project more than three feet (914 mm) nor more than 1/4 the width of the sidewalk beyond the street lot line. Temporary entrance awnings may be erected with a minimum clearance of seven feet (2,134 mm) to the lowest portion of the hood or awning when supported on removable steel, or other approved noncombustible supports.
A. 
Permit: A permit shall be obtained from the Building Inspector for the erection, repair or replacement of any fixed awning, canopy or hood except as provided in Subsection B below and for any retractable awning located at the first story level and extending over the public street or over any portion of a court or yard beside a building serving as a passage from a required exit or exit discharge to a public street.
B. 
Exemption from permit: A permit shall not be required for the erection, repair or replacement of fixed or retractable awnings installed on commercial buildings unless they project over public property, or for retractable awnings installed above the first story or where the awning does not project over the public street or over any court or yard serving as a passage from a required exit to a public street.
C. 
Retractable awnings: There shall be a minimum clearance of seven feet (2,134 mm) from the sidewalk to the lowest part of the framework or any fixed portion of any retractable awning, except that the bottom of the valance of canvas awnings may extend to six feet nine inches (2,057 mm) above the sidewalk. Retractable awnings shall be securely fastened to the building and shall not extend closer than 12 inches (305 mm) from the curbline. They shall be equipped with a mechanism or device for raising and holding the awning in a retracted or closed position against the face of the building.
D. 
Fixed or permanent awnings: The clearance from the sidewalk to the lowest part of any fixed or permanent awning shall be the same as required in Subsection C above for retractable awnings. Fixed or permanent awnings installed above the first story shall not project more than four feet (1,219 mm).
E. 
Canopies: Canopies shall be constructed of a metal framework, with an approved covering, attached to the building at the inner end and supported at the outer end by not more than two stanchions with braces anchored in an approved manner and placed not less than two feet (610 mm) in from the curbline. The horizontal portion of the framework shall be not less than eight feet (2,438 mm) nor more than 12 feet (3,658 mm) above the sidewalk and the clearance between the covering or valance and the sidewalk shall he not less than seven feet (2,134 mm). The width of canopies shall not exceed eight feet (2,438 mm).
F. 
Special applications of awnings: Rigid awnings supported in whole or part by members resting on the ground and used for patio covers, car ports, summer houses or other similar uses shall comply with the requirements of Subsection G below for design and structure. Such structures shall be braced as required to provide rigidity.
G. 
Design and construction: Fixed awnings, canopies and similar structures shall be designed and constructed to withstand wind or other lateral loads and live loads as required by this code with due allowance for shape, open construction and similar features that relieve the pressures or loads. Structural members shall be protected to prevent deterioration.