The preservation and protection of historic resources in Tredyffrin
Township (the "Township") are in the interests of education, property
values, and general welfare of the citizens of the Township. The purposes
of this article are:
A. To protect the integrity of the historic resources of Tredyffrin
Township;
B. To establish a process by which proposed changes to historic resources
are reviewed by Tredyffrin Township;
C. To encourage the continued, viable use of historic resources in Tredyffrin
Township;
D. To discourage the unnecessary demolition of historic resources in
Tredyffrin Township; and
E. To maintain the property rights of Township residents.
As used in this article, the following terms shall have the
meanings indicated:
CULTURAL STUDIO
A building to present cultural, scientific, or academic lectures
or performances or art displays to the general public by a nonprofit
entity.
DEMOLITION or DEMOLISH
The razing or destruction, whether entirely or in significant
part, of the exterior of a building, structure or site. Demolition
includes the removal of a building or structure from its site or the
removal, stripping, concealing or destruction of the facade or any
significant interior or exterior architectural features which are
integral to the historic character of the resource, for whatever purpose,
including new construction or reconstruction.
DEMOLITION BY NEGLECT
A.
The failure to provide ordinary and necessary maintenance and
repair to a building or structure designated as an historic resource
on the Township Historic Resource Map, except for ruins existing at
the time of adoption of this section, whether by ordinary negligence
or willful neglect, purpose or design by the owner or any party in
possession thereof, which results in the following conditions:
(1)
The deterioration of exterior features so as to create or permit
a hazardous or unsafe condition to exist.
(2)
The deterioration of exterior walls, roofs, chimneys, or windows;
the lack of adequate waterproofing; or deterioration of the structural
system or foundations which will or could result in permanent damage
or loss of exterior features.
B.
Demolition by neglect includes having a building or structure
open or vulnerable to vandalism or decay by the elements.
HISTORICAL COMMISSION
The Historical Commission of Tredyffrin Township which advises
the Township on matters concerning the preservation of historic resources,
the members of which are appointed by the Board of Supervisors.
HISTORIC OVERLAY DISTRICT
An overlay zoning district as established and applied under
this article, designating historic resources within the Township.
HISTORIC RESOURCE(S)
Within the context of this chapter, all buildings, sites,
structures, and districts designated on the Historic Resources Map.
The following uses and no other shall be permitted in the Historic
Resource Overlay District:
A. Any use permitted in the underlying zoning district in which the
property is located.
B. The following additional uses:
(1)
A property upon which a historic resource is situated, excluding
buildings and structures which do not contribute to the historic resource,
which property obtains access from any street, may be used for any
one of the following uses, subject to obtaining a recommendation from
the Historical Commission and obtaining conditional use approval from
the Board of Supervisors:
(a)
Bed-and-breakfast, subject to the following conditions:
[1] A bed-and-breakfast facility shall be considered a low-impact home-based business and shall be subject to all applicable standards of §
208-120 regarding low-impact home-based businesses. If there is a conflict between §
208-120 and this section, the regulations in this section shall prevail.
[2] A bed-and-breakfast facility shall be permitted
only in single-family detached owner-occupied dwellings, or existing
buildings accessory thereto on the same property, provided that the
property on which the dwellings or buildings are situated is located
on a collector road.
[3] A lot size of not less than 80,000 square feet
shall be required for the operation of a bed-and-breakfast facility,
provided that:
[a] Parking to meet the requirements of §
208-13 can be provided on the lot without substantially altering its residential character and shall not be located in any required front or side yard area.
[b] An adequate sewage system exists to handle the
anticipated sewage flows and the availability of sufficient backup
area on the lot has been certified by the Chester County Health Department
on the basis of an on-site inspection.
[4] The principal use of the property shall remain
that of a single-family dwelling.
[5] No more than three guest rooms may be offered for
bed-and-breakfast purposes on any individual residential property.
[6] There shall be provided one full bathroom (including
one toilet, wash basin, bath and/or shower) for each two guest rooms.
[7] Length of stay shall not exceed seven uninterrupted
days for any guest.
[8] Meals shall consist of breakfast only, and only
for guests of the establishment. Owners shall comply with all federal,
state, and local requirements for the preparation, handling, and serving
of food.
[9] Any amenities (swimming pool, tennis court, etc.)
shall be for the sole use of the resident owner and the bed-and-breakfast
guests.
[10] The owner shall maintain a current guest register.
[11] There shall be no kitchen or cooking facilities
in any guest suite.
(b)
Cultural studio, subject to the following conditions if located
in a residential zoning district:
[1] The use shall be limited to one instructional class
at a time with not more than 10 students in the class and not more
than two instructors.
[2] One off-street parking space shall be provided
in the amount equal to half of the permitted occupancy rate, with
a minimum of four off-street parking spaces.
(c)
Gallery or museum, subject to the following conditions if located
in a residential zoning district:
[1] The area devoted to the use shall be limited to
4,500 square feet.
[2] One off-street parking space shall be provided
in the amount equal to half of the permitted occupancy rate, with
a minimum of four off-street parking spaces.
(d)
Accessory apartment. This use may be conducted in a structure
accessory to the principal dwelling on the property, rather than within
the principal dwelling, provided the accessory structure is determined
by the Board of Supervisors to be a contributing resource and is identified
as such on the Historic Resource Map and subject to the following:
[1] The accessory apartment can be the only other single-family
dwelling unit on the property.
[2] Two off-street parking spaces shall be required
for the accessory apartment.
(2)
A property upon which an historic resource is situated, excluding
buildings and structures which do not contribute to the historic resource,
which obtains direct access from a major collector or higher order
roadway in the currently enacted Tredyffrin Township Comprehensive
Plan, may also be used for any one of the following, subject to obtaining
a recommendation from the Historical Commission and obtaining conditional
use approval from the Board of Supervisors. Where the facility is
located in a residential zoning district, the property owner or manager
or lessor of the facility must reside on the premises.
(a)
Professional office, limited to one employee per 500 square
feet of gross habitable floor area devoted to professional office
use.
(b)
Artist studio or craft workshop employing not more than five
persons. Such crafts shall include model making, rug weaving, lapidary
work, furniture making, and similar crafts.
C. For all uses located in a residential zoning district, the following
regulations shall apply:
(1)
To the extent that proposed new off-street parking would otherwise
be visible from neighboring properties, such parking areas shall be
completely screened by plant material or a combination of plant material,
fencing, or berms to a height of at least four feet.
(2)
There shall be no use of show windows or display or advertising
visible outside the premises, other than a single, nonilluminated
sign not exceeding two square feet.
(3)
No use shall be permitted which generates noise perceptible
at the property line.
(4)
Site lighting shall be designed to screen the source of illumination
and glare completely from adjacent properties.
(5)
No square footage added to a historic resource after January
1, 2011, may be used in the calculations of gross habitable floor
area for purposes of this section.
The requirements applicable to the underlying zoning district
relating to building area, impervious surfaces and front, side, and
rear yard setbacks may be modified by up to 15% with respect to historic
resources, subject to obtaining a recommendation from the Historical
Commission and conditional use approval from the Board of Supervisors.
These modifications shall apply to the area of the lot as it existed
on January 1, 2011.
A. The additional building area and impervious surface coverages permitted
by this section each may not exceed 50% of the building area of the
historic resource.
B. Where the requested relief is determined by the Board of Supervisors
to be essential to the preservation of the historic resources because
without such relief it would not be physically or economically possible
to maintain the historic resource, the Board of Supervisors may, by
conditional use, reduce such requirements to a greater degree than
permitted by this section to protect the historic resource.
In any instance where the Board of Supervisors is required to consider a request for a conditional use in accordance with the provisions of this article, the following shall apply in addition to the requirements of §
208-117 of this chapter. Where the requirements of this section expressly conflict with any requirement of §
208-117, the requirements of this section shall be followed.
A. Applicant shall submit the appropriate application, including the
following information:
(1)
Name and address of the record owner and applicant (if different).
(2)
Site plan showing all buildings and structures on the property.
(3)
Recent photographs of the historic resource.
(4)
A detailed narrative description of the proposed use(s).
(5)
Any physical changes proposed for the affected historic resource(s)
and the surrounding landscape.
B. The application shall be accompanied by a historic resource impact
study where any land development or subdivision is proposed on a property
that contains any historic resource(s).
C. The Zoning Officer shall forward the complete application to the
Historical Commission. The Historical Commission, at a public meeting,
shall review the application for conditional use and shall forward
its recommendations to the Board of Supervisors within 60 days from
the date the application was filed. In formulating its recommendations,
the Historical Commission shall consider each of the criteria imposed
by this section for the grant of conditional use approval. If the
Historical Commission fails to act within 60 days, the application
shall be deemed to be not recommended by the Historical Commission.
D. Any conditional use granted under this subsection shall be subject to the expiration requirements of §
208-117F, Expiration of conditional use.
E. Criteria for the grant of conditional use approval. Where a use is permitted in a Historical Resource Overlay District by conditional use, that use shall not be granted unless the following requirements have been satisfied, in addition to those set forth at §
208-150:
(1)
The applicant shall have the burden of demonstrating that approval
of the application will not jeopardize the preservation of historic
resource(s) contained on the property subject to application. To sustain
this burden the applicant shall present evidence demonstrating the
following:
(a)
Exact location of the area in which the work is to be done.
(b)
The exterior changes to be made or the exterior character of
the structure to be erected.
(c)
A list of surrounding structures with their general exterior
characteristics.
(d)
The effect of the proposed change upon the general historic
and architectural nature of the property.
(e)
The appropriateness of exterior architectural features of structures
involved with the proposed work.
(f)
The general design, arrangement, texture, material, scale, mass
and color of any affected building, structure, or site and the relation
of such factors to similar features of other structures on the property.
(g)
That rehabilitation work will not destroy the distinguishing
qualities or character of the historic resource and its environment.
(h)
Distinctive stylistic features or examples of skilled craftsmanship
shall be preserved.
(2)
The most current version of the Secretary of the Interior's
Standards for Rehabilitation of Historic Structures, as amended, shall
be used as a guideline in carrying out any plans involving the rehabilitation,
alteration, or enlargement of historic resource(s).
(3)
Where plans involving the rehabilitation, alteration, or enlargement
of the historic resource(s) will result in all or portions of any
such resource(s) remaining unoccupied, such unoccupied resources shall
be securely sealed and barred off and the utilities turned off for
safety, in a manner not jeopardizing historical integrity, as per
the most current construction techniques for historic structures.
(4)
A means to guarantee the protection of the historical integrity
of the subject resource(s), such as the establishment of conservation
easement(s) or appropriate covenants in a form acceptable to the Township
Solicitor, shall be provided.
(5)
The applicant shall have the burden of proving that the historical
integrity of the historic resource has been provided for through the
design of the building improvements as well as through implementation
of buffering, landscaping, lighting, storage, access and traffic management,
interior circulation, loading, parking, fencing, signage, and all
other land development features.
(6)
The applicant shall have the burden of proving that the grant
of the application will not be destructive of the integrity of the
historic resource or detrimentally affect the value of surrounding
properties.
(7)
The applicant must comply with the parking requirements for
the proposed use as set forth in this article. The Board of Supervisors
may prohibit any additional parking between the right-of-way and the
facade of the building if the Board of Supervisors finds such parking
would negatively impact the historical integrity of the resource.
(8)
The applicant must comply with the requirements of this chapter
with respect to signage. The Board of Supervisors may condition approval
on a reduction in the size of the signage if it finds that the permitted
signage will obstruct views required to assure the safety of the public
or to retain the historic nature of the property.
(9)
The Board of Supervisors may attach conditions to achieve the
objectives set forth in this section and to promote the public health,
safety, and welfare, which conditions may relate to any aspect of
the proposed use of the property, including but not limited to buffering,
parking, signage, traffic volume and flow, hours of operation, noise,
and odor emissions.
(10)
Where the Board of Supervisors waives any requirement which
thereby increases the rate or volume of stormwater generated on the
property, the additional rate and/or volume of runoff caused by such
waiver shall be controlled for the one-hundred-year storm.