City Building Permits

Tredyffrin Township, PENNSYLVANIA Building Permit Guide

How to apply for a building permit in Tredyffrin Township, Pennsylvania. Permit authority, application steps, fees, and inspection requirements.

Pennsylvania Chester County Updated March 2026

Permit Authority

Township permit authority for building, construction, contractor registration, tree removal, and stormwater/grading permits in Tredyffrin Township.

Department
Permits & Inspections Department
Address
1100 DuPortail Road, Berwyn, PA 19312
Phone
610-644-1400 press 4
Website
https://www.tredyffrin.org/Departments/Permits-Inspections/Building-Construction-Permits

Online Permit Portal

Open Clariti Online Portal

Platform: Clariti • Account required: Yes • Submission: Online only

Additional resources:

Application Process

  1. Submit all building, construction, stormwater/grading, tree removal, and contractor registration applications online through Clariti.
  2. Upload the applicable residential or commercial permit application requirements package, plot plan, and supporting documents.
  3. Township review begins; residential maximum plan review time is 15 business days and commercial is 30 days.
  4. Applicant/contractor is invoiced after plan review; review comments and requested revisions are handled through the permit process.
  5. After payment, allow 24 to 48 hours for processing and issuance.
  6. Post permit visibly from the street and schedule inspections; final inspections must be completed before U&O issuance.

Typical processing time: Residential maximum 15 business days; commercial maximum 30 days; expedited review available for an added 1.5 percent of the permit fee; FAQ says average turnaround is 2 to 3 weeks.

Source: Permits & Inspections Department

General Requirements

Township states building permits are required to construct, enlarge, alter, repair, move, demolish, or otherwise change occupancy of a building and to erect/install/alter regulated electrical, gas, mechanical, or plumbing systems.

Required Documents

  • Online application
  • Applicable residential/commercial requirements packet
  • Plot plan
  • Supporting technical materials
Permit validity
Not clearly posted on the main page reviewed.
Building code
Township page states the 2018 IBC is effective and includes plumbing, mechanical, electrical, fuel gas, energy, and existing building codes; local zoning and stormwater rules also apply.
Owner-builder
Applicant types on township forms include owner and contractors; no separate owner-builder policy summary was posted on the public page.
Contractor requirements
Township FAQ states a $75 annual fee is required for all commercial contractors, plumbers, and new home builders.

Fees

Minimum permit fee
Published in the township fee schedule and fee calculator; exact building minimums vary by permit class.
Plan check fee
Included in the fee schedule and fee calculator; applicant is invoiced after plan review rather than paying at submission.
Permit fee formula
Calculated per township fee schedule and fee calculator; expedited review costs an additional 1.5 percent of the permit fee.
Reinspection fee
Electrical inspections are coordinated through United Inspections; any additional fee amounts are governed by the township fee schedule.
Payment note
Payment is not required upon submission; the applicant/contractor is invoiced once plans are reviewed.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

  • Painting, papering, tiling, carpeting, cabinets, countertops, and similar finishing work
  • Swings and other playground equipment accessory to one- and two-family dwellings
  • Prefabricated pools less than 24 inches deep
  • Window awnings within township limits and window replacement without structural change
  • Roof replacement not exceeding 25 percent of total roof area in a 12-month period, siding replacement, non-structural porch/stoop repairs, added roll/batt insulation, and gutter/leader replacement
  • Minor listed electrical, portable HVAC/ventilation equipment, leak stopping in pipes, replacement of faucets/lavatories/toilets, and residential underground storage tank removal

Inspections

How to Schedule

  • 610-644-1400 press 4 (phone)
  • permits@tredyffrin.org (email)
  • United Inspections (electrical) 215-542-9977 (phone)
Inspection hours
Regular township business hours

Typical inspection sequence: Permits are posted; inspections are scheduled after work completion phases; final inspections are required before Use & Occupancy issuance.

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Permits & Inspections Department before applying.

Need help with your project?

Navigating permits in Tredyffrin Township can be complicated.

Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.

Learn how Jaspector works
Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

Other cities in Chester County

east-whiteland-township
View all Chester County jurisdictions →