Township Ordinances

Zoning Ordinance divides the Township into Zoning Districts to accommodate various types of development. Each zoning district has a list of permitted uses such as single family dwellings, apartments or offices. Each zoning district also has "bulk and height" regulations that determine the buildable area of each lot. These regulations include minimum lot sizes, minimum size of required yards in which buildings cannot be located, maximum amount of property that can have buildings or impervious surfaces, and maximum height for buildings. The dimensions and locations of new buildings or additions must comply with the district's bulk and height regulations. Zoning regulations also govern topics including but not limited to: parking, signs, accessory structures such as sheds and pools, building in a floodplain, rules about communication towers, etc.

The Zoning Ordinance may be purchased at the Township Building. The cost for the Zoning Ordinance is $40 and $50 by mail. They also are available for review at the Tredyffrin and Paoli libraries.

View the Zoning Ordinance online.

Zoning Map - General Code

Interactive Zoning Map

Zoning Map - ChescoViews

ChescoViews

Subdivision and Land Development

Subdivision and Land Development (SALDO) guides the process of developing and reviewing subdivision and land development plans. The ordinance establishes uniform standards for adequate public improvements, ensures the creation of developable lots, and implements the recommendations of the comprehensive plan.

View the SALDO online.

Recently Adopted Ordinances

Planned Industrial Park (PIP) Zoning Text Amendment: A public hearing was held on July 13, 2015 to consider a petition to amend Article XII, 208-40 Use Regulations (to allow for Residential Care Facilities) and 208-41 Dimensional Requirements (to reduce the minimum building separation for said use). View the Planned Industrial Park (PIP) Zoning Text Approved Amendment(PDF, 847KB).

Open Space/Fee-In-Lieu SALDO Amendment: A public hearing was held on March 16, 2015, to consider and possibly amend Section 181-51 (SALDO) for a fee-in-lieu open space text. View the Open Space/Fee-In-Lieu SALDO Approved Amendment(PDF, 941KB).

The Zoning Ordinance divides the Township into Zoning Districts to accommodate various types of development. Each zoning district has a list of permitted uses such as single family dwellings, apartments or offices. If a use is not on the list, then it is not allowed in that district. Some uses not deemed acceptable for an entire district but appropriate under the right circumstances are allowed by special exception or conditional use. Uses not included in a district's list but in place before the adoption of the applicable provision of the Zoning Ordinance may be grandfathered as a "nonconforming use" and therefore permitted. However, an extension of that nonconforming use may require approval from the Zoning Hearing Board.

All commercial uses of property and new construction of dwellings require occupancy permits which certify that the use complies with the Zoning Ordinance and fire prevention regulations.

View this interactive map in a larger window.

Each zoning district also has "bulk and height" regulations that determine the buildable area of each lot. These regulations include minimum lot sizes, minimum size of required yards in which buildings cannot be located, maximum amount of property that can have buildings or impervious surfaces, and maximum height for buildings. The dimensions and locations of new buildings or additions must comply with the district's bulk and height regulations. Existing lots or buildings that do not comply with regulations adopted after the lots or buildings were created or constructed may be grandfathered as nonconforming and therefore permitted. However, new construction or additions to such lots or buildings may require approval from the Zoning Hearing Board.

Zoning regulations also govern topics including but not limited to: parking, signs, accessory structures such as sheds and pools, building in a floodplain, rules about communication towers, etc.

The Zoning Ordinance may be purchased at the Township Building. The cost for the Zoning Ordinance is $40 and $50 by mail. They also are available for review at the Tredyffrin and Paoli libraries.

Zoning Certificates may be obtained by writing a letter to the Zoning Officer indicating the address and tax parcel of the property for which you are requesting the certificate. Submit the letter with the appropriate fee.

Township Fee Schedule(PDF, 375KB)

Beginning March 19, 2023, Tredyffrin Township retail & restaurant establishments are prohibited by HR-454 from providing single-use plastic carry out bags and non-recyclable paper bags to their customers. Reusable and recyclable paper bags may be provided at point of sale for no less than $0.15 per bag. The Tredyffrin Township Board of Supervisors adopted this ordinance by Public Hearing at their September 19, 2022 regularly scheduled meeting.

Also prohibited by HR-454 is the use of polystyrene food containers and single use plastic straws. View HR-454(PDF, 176KB).

The use of single plastic bags has severe environmental impacts, including entering local waterways, littering the environment and causing harm to wildlife, becoming stuck in or upon natural resources and public property, and blocking storm drains. Shopping with reusable, compostable or recyclable paper bags can help reduce waste and litter and keep our Township streets and waterways clean.

• Frequently Asked Questions regarding the Plastic Bag Ordinance implementation
• Plastic Bag Ordinance Enforcement Policy(PDF, 132KB)
• List of local vendors of compliant bags
• Download signage(PDF, 5MB) that businesses can use to inform their customers of the plastic bag ordinance (seen below)