§ 255-255.   Permitted uses.
The following and no others shall be permitted on properties within the Historic Resource Overlay District.
   A.   Any permitted in the underlying zoning district in which the property is located.
   B.   For those properties within the Historic Resource Overlay District which also contain a designated as a Class 1 or Class 2 Historic Resource on the Upper Dublin Township Code, § A 264-1, Historic Resource Inventory, the following are permitted:
      (1)   Provided that the guarantee referenced in § 255-257B(4) has first been submitted and approved, on properties which obtain access from any may, in addition to the permitted in Subsection A above, be used for any of the following , subject to obtaining a recommendation for approval from the Historical Commission pursuant to Chapter 127, and obtaining conditional approval from the Board of Commissioners:
         (a)   Bed-and-breakfast, subject to the following conditions:
            [1]   The must have a of 2,500 square feet or more to be eligible for this .
            [2]   A maximum of five guest suites shall be permitted in any one bed-and- breakfast establishment, with a maximum occupancy of 15 guests.
            [3]   There shall be no kitchen or cooking facilities in any guest suite.
            [4]   The of any amenities provided by the establishment, such as swimming pool or tennis courts, shall be restricted in to guests staying at the establishment.
            [5]   Off-street shall be provided at a rate of one space per guest suite plus the regularly required parking for any other permitted .
            [6]   The property owner, the manager or the lessor of the bed and breakfast must reside on the premises.
         (b)   Artist studio or crafts workshop producing objects which may be sold at retail on the premises. Such crafts shall include painting, sculpting, model malting, rug weaving, lapidary work, furniture making and similar crafts.
            [1]   The must have a of 2,500 square feet or more to be eligible for this .
            [2]   The property owner or artisan selling the objects must reside on the premises.
            [3]   There may be no more than three employees.
            [4]   There may be no more than eight retail visits per day.
         (c)    ; provided that one additional off-street is provided for each employee.
            [1]   No more than one-third of the of the shall be utilized for the .
            [2]   An may be conducted in a accessory to the practitioner’s principal residence, provided that the accessory already exists on the property as of the date of adoption of this article and provided the Historic Commission recommends approval of the application because the architectural character of the accessory is complementary and sympathetic to the listed on the inventory.
         (d)    . This may also be conducted in a accessory to the principal on the property, provided that the accessory already exists on the property as of the date of adoption of this article and provided the Historic Commission recommends approval of the application because the architectural character of the converted accessory is complementary and sympathetic to the listed on the inventory.
         (e)   Conversion. The may be converted into a multi-family , subject to the following requirements:
            [1]   Each shall not have less than 750 square feet of floor area.
            [2]   The per shall be no less than 30% of that required by this chapter for a single family in the district in which the is situated.
            [3]   External alterations to the , as permitted herein below by conditional , shall be reviewed and recommended for approval by the Historical Commission. Fire escapes, outside stairways or other life, health and safety shall, where practicable, be located so they are not visible from any public and/or to the rear of the .
         (f)   A or fraternal organization on a parcel having a gross of twice that required by this chapter for a single family in the district in which the is situated. No more than 25% of the of the may be utilized for this incentive .
      (2)   Provided that the guarantee referenced in § 255-257B(4) has first been submitted and approved, on properties which obtain access from an arterial, primary or secondary street, 49  may, in addition to the permitted in Subsection A above, be used for any one of the following , subject to obtaining a recommendation for approval from the Historical Commission, pursuant to Chapter 127, and obtaining conditional approval from the Board of Commissioners:
         (a)   Any permitted in Subsection B(1)[a]–[f].
         (b)   Professional office, limited to one non-resident employee per 500 square feet of devoted to professional office .
         (c)    , teaching skills such as music, theatre or dance, subject to the following conditions, if located in a residential zoning district:
            [1]   The must have a of 4,000 square feet or more to be eligible for this .
            [2]   The shall be limited to one class at a time with no more than 10 students per class and no more than two instructors.
            [3]   The property owner or the manager of the studio must reside on the premises.
   C.   On properties where permitted in both Subsections A and B above occur, the permitted in the underlying zoning district may only occur in a in existence on the as of the date of adoption of this article.
   D.   For all permitted in Subsection B(1) and (2) on a property located in a residential zoning district, the following additional regulations shall apply:
      (1)   Unless otherwise provided for in this Section the off-street parking requirements of this chapter are applicable.
      (2)   To the extent that they are visible from neighboring residential properties, new off- street parking areas for guests, students, employees, patients or clients shall be visually screened from such properties. The screening shall meet the intent of a screen buffer, as defined in the SALDO, Chapter 212, but may utilize plant material or a combination of plant material, fencing or berms.
      (3)   Newly required off street built to serve an incentive approved under this article may be no closer than five feet from a ’s side or rear property lines.
      (4)   There shall be no of show windows or displays or advertising visible outside the premises, other than a single, non-illuminated , not exceeding three square feet.
      (5)   There shall be no outdoor storage of materials and/or supplies for a occurring on a property, where that was authorized as part of the review and approval process set forth in this article.
      (6)   Refuse on the property shall be stored indoors where possible feasible. In the alternative refuse may be stored outdoors within a trash enclosure that is architecturally compatible with the or is not visible to pedestrians or occupants within vehicles utilizing adjacent or sidewalks.
      (7)   The hours of operation for the listed in Subsection B(1)(b), (c) and (f) or in Subsection B(2)(b) and (c) shall fall between the hours of 9:00 a.m. and 9.00 p.m.
      (8)   No shall be permitted which generates noise perceptible at the property line.
      (9)   Site lighting shall be designed to screen the source of illumination and glare from adjacent properties.
      (10)   Special events which will generate an unusual volume of traffic beyond that normally generated by a permitted on a daily basis, such as fund-raising events, recitals, stage performances, lectures and exhibitions, are prohibited unless specifically allowed by conditional , in which case the applicant shall have the burden of proving that the public interest will be protected considering the criteria set forth at § 255-174.
      (11)   No square footage added to a /property after the date of adoption of this chapter may be used in the calculation of for purposes of this section.
   E.   The provisions of Chapter 73 relating to   for historic are incorporated herein by reference.
49. See Upper Dublin Township’s Engineering and Construction Standards, Improvement Procedures for specific names