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Upper Dublin Township
City Zoning Code

ARTICLE XXI

Signs

§ 255-152.1. Declaration of legislative intent.

It is recognized that perform an important function in identifying properties, businesses, services, residences, events and other matters of interest to the public. It is hereby found and declared, however, that control of is necessary to promote the health, safety and general welfare by:
   A.   Lessening hazards to pedestrian and vehicular traffic.
   B.   Preserving property values.
   C.   Preventing unsightly and detrimental that has a blighting influence upon residential, business and industrial .
   D.   Preventing from reaching such excessive size or number that they obscure one another to the detriment of all concerned.
   E.   Securing certain fundamentals of design for the Township.
   F.   Requiring to be constructed, installed and maintained in a safe and secure manner
   G.   Encouraging that are appropriate to the zoning district in which they are located and consistent to the category of to which they pertain.
   H.   Allowing for the communication of information for the conduct of commerce and enabling the identification of places and businesses.

§ 255-152.2. General sign regulations for all districts.

[Amended 8-13-2019 by Ord. No. 19-1355, § 1]
The following regulations shall apply to in all districts unless specifically authorized and/or otherwise restricted or regulated by the specific provisions of the zoning district:
   A.   Prohibited . The following or illumination of shall be prohibited in the Township:
      (1)    .
      (2)   Beacon lighting.
      (3)   Flashing or reflective .
      (4)   Moving or swinging .
      (5)   Illuminated .
      (6)    .
      (7)    .
      (8)    .
      (9)    .
      (10)    .
      (11)    .
      (12)    .
   B.   Permitted . The following shall be permitted in all zoning districts:
      (1)   Government (i.e., traffic , parking , etc.).
      (2)   Legal notices.
      (3)   Public monument, plaque or historic erected by a government agency.
      (4)   Government flag, insignia or decorative banners.
      (5)   Public service and information advertising availability of public restrooms, telephones or similar public conveniences, not exceeding three square feet in area.
      (6)   Address , not exceeding two square feet.
      (7)   Name plates and , provided that characters do not exceed three inches in height and an area not exceeding two square feet.
      (8)   Vending machine , where a product name is an integral component of the vending machine, provided that the machine is not placed in the front of a property.
      (9)    , provided that the aggregate area of on a property does not exceed four square feet; incidental in excess of four square feet shall be included in the calculation of a property’s permitted .
      (10)   Home security , not exceeding one square foot.
      (11)    .
      (12)    sale .
      (13)    , provided that they are not illuminated and are either freestanding, wall or window . Such may not exceed four square feet and, in the case of , four feet in height.
      (14)    .
   C.    requirements. No portion of any , or may be located within the side or rear setback or within the required buffer zone when located adjacent to a residential district.
   D.    in non-residential districts.
      (1)   Intent. The following regulations are intended to prevent blight and insure the safety of the public by: limiting the number and the placement of on private property in the Township; standardizing the size and height of such ; and establishing a method for the removal of outdated or poorly maintained .
      (2)    , as defined in this Chapter, located on private property are subject to the regulations set forth below. that comply with the requirements in this subsection shall not be included in the determination of the type, number or area of permanent signs allowed on a property.
         (a)   Large : One large is permitted per property in all non-residential zones, as follows:
             [1]   Permitted types:
               a.   
               b.   
               c.   Wall
            [2]   Area: Each large shall have a maximum area of 20 square feet.
            [3]   A that is double-sided counts as one .
            [4]   A in the form of a "V" counts as one sign if the angle between the faces is 45 degrees or less.
            [5]   Height: Large that are shall have a maximum height of eight feet. The height is measured from grade to the top of the sign.
         (b)   If a property has two street frontages, one additional large may be permitted so long as there is a minimum spacing of 200 feet between the two large .
         (c)   Small : In addition to the large outlined above, one small real estate sign is permitted per property in all non-residential zones. If a property is greater than five acres in size and has at least 400 feet of street or with more than 10,000 square feet of floor area, one additional small may be permitted.
            [1]   Permitted types:
               a.   
               b.   
               c.   Wall
            [2]   Area: Each small shall have a maximum area of 12 square feet.
            [3]   Height: Small that are freestanding shall have a maximum height of six feet.
      (3)   Permit requirements. A permit is required for each , subject to the following regulations:
         (a)   A permit for a shall expire in six months, but may be renewed, with verification of continued property availability documented, where space is being rented, by a floorplan indicating the area(s) of space available in the property.
         (b)   One is allowed per permit. An applicant may request up to two permits per address, but is subject to the size and number requirements set forth in this section.
         (c)   An application for a permit must include:
            [1]   A description of the indicating its, size, shape, and dimensions, and the expected length of time the will be displayed;
            [2]   A schematic drawing of the site showing the proposed location of the in relation to nearby and ;
            [3]   The number of on the site.
      (4)   Installation, composition and maintenance.
         (a)   All must be installed such that, in the opinion of the code official, they do not create a safety hazard.
         (b)   All must be made of durable materials and shall be well-maintained.
         (c)    that are frayed, torn, broken, or that are no longer legible will be deemed unmaintained and required to be removed.
      (5)   Illumination of any is prohibited.
      (6)    must be removed upon the full lease-up or sale of a property.

§ 255-153. Residential districts.

Publisher's Note: This Section has been AMENDED by new legislation (Ord. 25-1408, passed 12-9-2025). The text of the amendment will be incorporated below when the amending legislation is codified.
[Amended 3-11-2008 by Ord. No. 1195, § 8]
In all residential districts, the following shall be permitted and no other:
   A.    permitted in § 255-152.2 of this article.
   B.    , provided that the area of any one side of any such shall not exceed six inches by 18 inches, and provided that not more than one such shall be erected for such permitted or .
   C.    for a , church, hospital, sanitarium, or other institution of similar nature, on the same therewith, for the purpose of displaying the name of the institution and its activities or services, provided that not more than one such shall be erected on any frontage of any property in single and separate ownership, and provided that the area on one side of such shall not exceed 15 square feet except as follows: [Amended 3-11- 2008 by Ord. No. 1195, § 8]
      a.    for a public on a residentially zoned parcel 25 acres or larger may not exceed 32 square feet on one side and, in the case of a , the height of the may not exceed three feet, six inches. [Added 3-11-2008 by Ord. No. 1195, § 8]
   D.   Trespassing and indicating private ownership of roadways or other property, on the same premises therewith, provided that the total area on any one side of such shall not exceed one square foot and shall be spaced at intervals of not less than 100 feet of frontage.
   E.    as follows:
      (1)   For advertising the sale or rental of the premises upon which the is erected, provided that the total area on any one side of such on any one frontage of any property in single and separate ownership shall not exceed six square feet.
         No shall be displayed on the premises more than seven days after the signing of an agreement of sale or lease.
      (2)   Open house (on- and off-premises). There shall be a maximum of one on-premises open house for each property line of frontage.
         (a)   A maximum of two off-premises directional open house shall be permitted for each home or .
         (b)    shall not exceed four square feet per side and may not be illuminated.
         (c)   Off-premises directional must have permission in advance from the property owner where the is to be placed. cannot be placed in the .
         (d)   Freestanding open house and directional shall not exceed a height of six feet.
         (e)   All open house are allowed only on the day of the showing and must be taken down immediately after the showing.
   F.    as follows:
      (1)   Where the subdivision's recorded plan contains fewer than 10 , the area of any one side of such shall not exceed 15 square feet, and not more than one such shall be erected within any such .
      (2)   Where the subdivision's recorded plan contains 10 or more , the area of any one side of any such shall not exceed 35 square feet, and not more than two such shall be erected within any such .
      (3)    as permitted in Subsection F(1) and (2) above shall be permitted only for a period of one year from the date of issuance of the or the date of sale of the last , whichever first occurs; such may be maintained thereafter, but only after granting of a by the Zoning Hearing Board as provided by Article XXIII of this chapter, but in no event shall the Board be permitted to grant a total period longer than two years from the date of original .
   G.    which advertise public auctions for the disposal of real estate, property or merchandise. An auction sale shall conform to the several provisions of the several subsections under Subsection E of this section; however, a for such shall not be issued for a period greater than 90 days from the date of issuance.
      (1)    shall not exceed nine square feet in area, at a maximum height of six feet, and shall be placed only on the property where the stated auction is being conducted.
      (2)    may be erected not earlier than 30 days prior to the advertised auction and shall be removed within 10 days after the auction.
   H. in connection with the identification, operation or protection of any public utility or municipal activity on the same therewith, provided that the total on any one frontage of any property in single and separate ownership shall not exceed eight square feet.
   I.   For a laboratory or sale of agricultural products, , provided that the total on any one frontage of any property in single and separate ownership shall not exceed 35 square feet.
   J.   Directional advertising the location of charitable, religious or educational organizations and service , provided that the is not in excess of five square feet, and provided further that no organization shall erect and maintain in excess of five in number.
   K.    during the period in which such work is being performed, provided that the area of any one side of any such shall not exceed 12 square feet, and provided that not more than one such shall be erected on any property in single and separate ownership, and provided that such shall be removed upon completion of the work.
   L.   For residential containing more than ten , two on each frontage external to the , not exceeding 20 square feet in area per .
   M.    (off-premises), provided that the area of any one side of any such shall not exceed six square feet, and provided that such shall be spaced at intervals of not less than 500 feet of frontage. A maximum of three off-premises directional shall be permitted for one . Permission must be obtained in advance from the property owner where the is to be placed. shall not be erected more than 60 days prior to the beginning of the actual of the project and shall be removed within 10 days after the date of the sale or rental of the final unit in such a .

§ 255-153.1. RE Recreational Districts.

In the RE Recreational Districts, the following shall be permitted and no other:
   A.    permitted in § 255-152.2 of this article.
   B.   One per frontage, provided that it relates to a located on the , does not exceed 32 square feet and 10 feet in height and does not exceed a total of three on each recreational property.

§ 255-153.2. AHS Apartment House Special Districts.

In the AHS Apartment House Special Districts, the following shall be permitted and no other:
   A.    permitted in residential districts; provided, however, that a larger may be permitted when granted by the Zoning Hearing Board as a .
   B.   One freestanding or parallel wall per frontage, provided that it does not exceed 32 square feet and, in the case of a , 10 feet in height.

§ 255-153.3. MD Multi-Dwelling Districts.

In the MD Multi-Dwelling Districts, the following shall be permitted and no other:
   A.    permitted in residential districts; provided, however, that a larger may be permitted when granted by the Zoning Hearing Board as a .
   B.   One freestanding or parallel wall per frontage, provided that it does not exceed 32 square feet and, in the case of a , 10 feet in height.

§ 255-153.4. INST Institutional Districts.

In the INST Institutional District, the following shall be permitted and no other:
   A.   A shall relate to a located on the .
   B.   One freestanding or wall per frontage, provided that it does not exceed 32 square feet and, in the case of a , 10 feet in height.

§ 255-153.5. DO Dresher Overlay Districts.

In the DO Dresher Overlay District, all shall be designed and constructed to give the appearance of natural materials, shall be of muted color and shall not be internally illuminated. A anchored in the ground may not exceed ten feet in height from ground level and must be on the same as the to which it refers. For permitted in the underlying zoning district, the regulations applicable to such shall apply. For all other the following regulations shall apply:
   A.   For office, and : one each of the following types of for each , no single to exceed 25 square feet in area:
      (1)    .
      (2)    .
      (3)    .
      (4)    .
   B.   For child or adult , assisted living, personal care and/or nursing facility, library, educational or religious facilities and all other not specifically mentioned: one each of the following types of for each , no single sign to exceed 35 square feet in area:
      (1)    .
      (2)    .
      (3)    .

§ 255-153.6. FW Ft. Washington Village District.

[Added 2-13-2007 by Ord. No. 1182, § 4; amended 12-9-2025 by Ord. No. 25-1408, § 5]
The location and design of in the FW Ft. Washington Village District shall be approved by the Board of Commissioners in conjunction with the final land plan, or at a time otherwise provided in land approvals. The following regulations shall apply to all within this district:
   A.   General provisions.
      (1)    must:
         (a)   Maintain a style that is compatible with the historic nature of the district and unify the within the FWVD.
         (b)   Be pedestrian oriented and be in proportion with the architecture of the , yet be sufficiently legible to a passing motorist.
      (2)    shall be designed and constructed to give the appearance of natural materials and be complimentary in their use of shape.
      (3)    shall not be internally illuminated or use neon lights.
      (4)    anchored in the ground shall not exceed ten feet in height.
      (5)    shall not hide architectural features.
      (6)    shall use colors that are vivid, varied and interesting, and legible, while compatible with the colors of the .
      (7)    hanging behind the store window shall not reduce the visual permeability of facing windows to less than the minimum clear window requirement.
   B.   Permanent . Only two of the following four shall be permitted, per , per facade:
      (1)    . No portion of a may extend more than four feet from the facade. A clear space of not less than eight feet shall be provided below all parts of the . The may be no greater than six square feet.
      (2)    painted on shop windows or other types of window graphics are permitted, provided they do not take up more than 30% of the clear window surface, and provided the minimum clear window requirement is met.
      (3)   Fire resistant canvas awnings may be used for provided the text is located on the vertical face of the awning flap.
         (a)   Numbers and letters shall be no taller than six inches.
         (b)   Plastic, back lit are prohibited.
         (c)   Business logos or emblems are permitted on the top or angled portion of the awning up to a maximum of three square feet. No more than one emblem or logo is permitted on an awning.
      (4)   Wall are permitted, provided:
         (a)   They do not exceed 5% of the wall area.
         (b)   They do not extend past the roof eaves.
         (c)   They do not block windows or hide cornices and other trim.
   C.    . A sidewalk sandwich board shall be permitted in addition to the above , provided:
      (1)   The face shall be no larger than four square feet per side.
      (2)   The shall be located directly in front of the store.
      (3)   The shall not create an obstruction to pedestrian traffic.
   D.   Free standing .
      (1)   Free standing are permitted by conditional to identify an individual with a floor area greater than 4,000 square feet. However, there shall be only one free standing for each property’s frontage. The area of a free standing shall be no larger than 25 square feet per side, with a maximum height of 14 feet.
      (2)    are permitted by conditional . They may be installed in lieu of a . These shall be a low no higher than 10 feet or with an area greater than 25 square feet.
      (3)   Notwithstanding any other provision of this chapter, a shall be permitted to have one with a not in excess of 40 square feet, and one other bearing a municipal welcome (or similar) message. The shall be permitted to advertise or direct attention to an activity on an adjacent containing a vehicle dealer use. [Added 12-9-2025 by Ord. No. 25-1408, § 5]

§ 255-154. CR Commercial Retail Districts; SC Shopping Center Districts.

[Amended 4-10- 2012 by Ord. No. 12-1257, § 1]
In Commercial Districts and in SC Shopping Center Districts, the following shall be permitted and no other:
   A.   Any permitted in any residential district, provided that the to which it refers is permitted in a commercial district or SC Shopping Center District.
   B.    in connection with tourist homes or rooming houses, on the same therewith, provided that the area of any one side of such shall not exceed six square feet, provided that not more than one such shall be erected on any one frontage of any property in single and separate ownership.
   C.   Business or commercial on the same as the to which it refers, subject to the following regulations:
      (1)   One or more of the following types, not to exceed a total of 35 square feet or 12 feet in height for each side of a , which faces a or a parking lot, located on the same property.
         (a)    .
         (b)    .
         (c)    .
         (d)    .
         (e)   Permanent .
         (f)    .
      (2)   At gasoline stations, one additional per frontage shall be allowed for advertising gas prices only, not to exceed 16 square feet.
      (3)   Temporary , banners, or commemorative flags for businesses announcing a grand opening, going out of business sale or other special promotional event.
   D.   In an SC Shopping Center District, and in a CR Commercial Retail District on a that is five acres or larger containing multiple commercial , in addition to permitted for individual establishments, there shall be permitted one or one indicating the name of the shopping center on up to two frontages providing access to the , provided:
      (1)   As to any such , the shall not exceed 75 square feet and the shall not exceed 25 feet.
      (2)   One may be substituted for a , provided the does not exceed 75 square feet and the does not exceed 6 feet.
      (3)    address numbers. Just below or at the bottom of the primary body of every on a frontage, the property’s address numbers shall be displayed. Lettering shall have a minimum height of 6 inches and be legible from the centerline of the adjacent .
[Amended 4-10-2012 by Ord. No. 12-1257]

§ 255-155. EC Employment Center District and GFW Greater Fort Washington District.

[Amended 5-10-2011 by Ord. No. 11-1238, §4; 5-14-2019 by Ord. No. 19-1351, §§6, 7]
   A.   In the EC Employment Center District and the GFW Greater Fort Washington District, for all other than those permitted under § 255-102(C) and § 255-295(E), Highway and Interchange Uses, the following shall be permitted and no other: [Amended 5-14-2019 by Ord. No. 19-1351, §6]
   (1)   Any permitted in any other district, provided that the to which it refers is permitted in the EC Employment Center District or the GFW Greater Fort Washington District and is conducted on the same where the is located. [Amended 5-14-2019 by Ord. No. 19-1351, §6]
      (2)   For any commercial, industrial or office , a maximum of two are permitted, provided that the of each shall not exceed 200 square feet or the exceed 10 feet.
      (3)   Freestanding are permitted as a pursuant to the regulations of this article and the following:
         (a)   If the provisions with respect to location, , size or height of are more restrictive in the Building Code adopted by Upper Dublin Township or any state or federal statute or regulation, those restrictions shall take precedence over the regulations and restrictions set forth in this article.
         (b)   A freestanding shall be single-faced but may have two back-to- back advertising surfaces. However, both surfaces shall be the same size and shape, the total length of the sign shall not exceed 50 feet, and the shall not exceed 35 feet, with a total copy area not exceeding 675 square feet.
         (c)   Freestanding having a greater than 25 square feet shall be located only adjacent to a limited access highway on property having frontage on a limited access highway, at a distance of not less than 25 feet from the , and at a distance of not less than 100 feet from any property line. Freestanding having a of 25 square feet or less shall be located no less than 50 feet from the of any public , and at a distance of not less than 100 feet from any property line.
         (d)   Except for freestanding having a of 25 square feet or less, an open space of not less than four feet shall be maintained between the lower edge of the freestanding display surface and the ground
         (e)   No portion of the supporting shall be visible above any advertising display area.
         (f)   No freestanding shall be located closer than 750 feet to the nearest freestanding on the same side of the highway, regardless of the size of the .
         (g)   No freestanding shall be allowed within 500 feet of a public or private elementary, middle or high , religious institution or single-family residential zoning district.
         (h)   All freestanding shall be erected on permanent footings or support designed by a registered structural engineer.
         (i)   The owner or applicant, at his sole expense, will remove any freestanding if the remains without bona fide advertisement, which shall not include rental of the space, for 90 days, or if the right to use the property has expired for any reason whatsoever.
         (j)   On a where an is erected, no more than two of any type shall be permitted.
         (k)   Except for freestanding having a of 25 square feet or less, externally illuminated shall be lighted by fixtures mounted at the bottom of the and aimed upward. The lighting of all freestanding shall be automatically extinguished between the hours of 11:00 p m and dawn and shall be so designed or fitted with fixtures to concentrate the light output onto and not beyond the .
   B.   In the EC Employment Center District and the GFW Greater Fort Washington District, for any freestanding retail sales use permitted under § 255-102(C) and § 255-295(E), Highway and Interchange Uses, the following , and no others, shall be permitted: [Amended 5-14-2019 by Ord. No. 19-1351, §7]
      (1)   A maximum of one may be installed to be visible for motorists traveling on limited access highways not exceeding 200 square feet or a measured height of 20 feet.
         (a)   In determining this ’s regulated height the measurement shall begin as if the base of the support pole was at the same elevation as the edge of the travel lane on the limited access highway closest to the subject property.
            [1]   For example, if the ground where the is placed is 15 feet below the elevation of the closest travel lane, then the actual height of the may not exceed 35 feet.
            [2]   Or, for example, if the ground where the is placed is five feet above the elevation of the closest travel lane, then the actual height of the may not exceed 15 feet.
            [3]   In no case may the actual height of this exceed 40 feet.
         (b)   The support pole for the may be no further than 20 feet from the property line abutting the limited access highway or, if applicable, the interchange access ramp.
         (c)   The name of the retail shall be shown on the . Fuel prices, if that is provided, may be noted on the and presented digitally.
      (2)   A maximum of one may be installed to be visible to motorist traveling on adjacent local not exceeding 35 square feet nor a height of 15 feet.
         (a)   The name of the retail shall be shown on the . Fuel prices, if that is provided, may be noted on the and presented digitally.
         (b)   The may be located no closer than 15 feet to the property line abutting the local or, if applicable, the interchange access ramp.
      (3)   A maximum of two wall , neither of which shall exceed 35 square feet.
         (a)   If the upon which the wall is affixed is further from the local than the minimum front setback, then the size of that wall may be increased one square foot for each additional five feet the is set back from the front setback.
      (4)   If canopies are provided over fueling positions, then there may be a maximum of two displayed on each canopy, neither may exceed 15 square feet.
      (5)   A maximum of two directional may be provided at each vehicular entrance. No individual may exceed two square feet.
      (6)   Fuel pump informational may be provided at each dispensing point provided each is double faced and does not exceed two square feet.
      (7)   All may be internally illuminated, subject to all applicable Township standards.

§ 255-155.1. M Motel - Motor Inn - Motor Lodge Districts.

In M - Motor Inn - Motor Lodge Districts, the following shall be permitted and no other:
   A.   A shall relate to a located on the . No more than five shall be permitted on a .
   B.    . Not more than one shall be permitted on each or controlled highway frontage, provided the total area of all shall not exceed 200 square feet. No shall exceed 35 feet in height.
   C.   No other than a may exceed 35 square feet.

§ 255-155.2. OC Office Center Districts.

In OC Office Center Districts, the following shall be permitted and no other:
   A.    permitted in § 255-152.2 of this article.
   B.   A shall relate to the located on the .
   C.   One shall be permitted for each access driveway from a public .
   D.   One shall be permitted for each .
   E.   One or one shall be permitted for each controlled highway frontage.
   F.   One freestanding for personal service and/or convenience-type commercial facilities as allowed in this section shall be permitted.
   G.   No in excess of 10 feet in height, 50 feet in length or 200 square feet in size shall be permitted.
   H.   In conjunction with a any combination of the following types of shall be permitted:
      (1)    . One shall be permitted for every 450 feet of property frontage along Welsh Road. Such shall be of a complimentary architectural style to the buildings of the , shall not exceed 25 feet in height, nor contain more than 200 square feet of per side (maximum two sides).
      (2)    . One shall be permitted for every 500 feet of property frontage along Dreshertown Road. Such shall be of a complimentary architectural style to the buildings of the , shall not exceed six feet in height, nor contain more than 120 square feet of per side (maximum two sides).
      (3)   Wall .
         (a)   Individual retail or commercial establishments within a shall be permitted on each exterior wall facing a public or a private or driveway. Such shall not exceed 10% of the facade on which the are located or 200 square feet, whichever is less.
         (b)   Residential identification signage shall be permitted on each exterior wall facing a public or private or driveway. Such identification signage shall not exceed two hundred square feet per facade.
      (4)   Directional . Directional within the shall be permitted, either freestanding or building mounted. Such may contain the names of specific tenants as well as other public information to direct both pedestrians and motorists through the site to the location of various uses including but not limited to general tenant parking areas, residential parking structures, parks, exits and entrances to the . shall be sized appropriately to be visible to pedestrians, motorist or both depending on location, but in no event shall any one be larger than 32 square feet in area. The total number of directional and their location shall be determined by the Board of Commissioners.
      (5)   Project identification . Project identification containing the project name or other identifying feature, but no other tenant advertising shall be permitted within the which also may be visible outside the . Such signage shall be of a complimentary style to the and shall be no larger than 200 square feet in area. The total number of project identification and their location shall be determined by the Board of Commissioners. [Added 12-6-2016 by Ord. No. 16-1326]

§ 255-156. Nonconforming signs.

   A.    legally in existence at the time of the adoption of this article that do not conform to the requirements of this article shall be considered .
   B.   All such shall be removed or altered so as to be in conformity with the standards contained in this Code at such time when:
      (1)   Upper Dublin Township approves an application for a in cases where more than 50% of the of the is to be significantly altered. Changes to the copy or the replacement of a panel of an existing establishment's shall not be considered a significant alteration. If more than 50% of the of a is damaged, it shall be repaired to conform to this article.
      (2)   An application requiring municipal review and approval for a or land is submitted for property on which the is located.
   C.   To determine the legal status of existing , in each of the two cases listed in § 255-156B, the applicant shall submit the following information to the Township Director of Code Enforcement:
      (1)   Type(s) of existing (s) located on the property.
      (2)   The area and height of all .
      (3)   For , the distance the outer most portion of the is set back from the curbline or shoulder.
      (4)   Type of illumination.
      (5)   The material of which the is constructed.
      (6)   The length along public frontage.
   D.   Prior to the events listed in § 255-156B, may be repainted, repaired up to 50% of the of the , the copy may be changed or panels may be replaced, provided that such actions do not increase the dimensions of the existing nor in any way increase the extent of the sign's nonconformity.
   E.   Under the following conditions, shall be exempt from the provisions of § 255-156B:
      (1)   The possesses documented historic value.
      (2)   The is of an unique nature or type by virtue of its architectural value or design.