The schedule you were promised is already slipping
You got a start date. Maybe you even got a rough finish date. Now it is two weeks later and nobody has touched the kitchen wall yet. The crew came by once, took some photos, and left. If you live in Paoli or anywhere in Tredyffrin or Easttown Township, this is normal, and it almost always traces back to permits, not to your contractor dragging their feet.
Chester County townships review plans before anyone can open a wall, move a electrical panel, or add square footage. That review takes time. On an older Paoli home, which is most of them, it often takes longer than the homeowner expects, because the house itself raises questions the township wants answered before it signs off.
Why old houses generate more paperwork
A lot of the housing stock around Paoli dates from the early to mid-1900s, with plenty of stone farmhouses and older colonials mixed in among newer construction. These houses were built before current codes existed, which means almost any renovation touches something that was legal when it was built but is not compliant today: knob and tube wiring still live in a wall, a stair riser that is an inch off modern code, a foundation that was never designed to carry the load of a new addition.
Each of those triggers its own review. A township inspector is not being difficult when they ask for an engineer's letter on a load-bearing wall in a 1920s house. They are doing their job, and that job takes as long as it takes. Your contractor can push the paperwork along, but they cannot make the township move faster than its own queue allows.
More on this from general contractor for Paoli homes.
What actually eats the calendar
The permit itself is rarely the slow part. Submitting plans, paying fees, waiting for the initial review, that has a predictable rhythm most contractors can plan around. The slow part is the back and forth: the township asks for a revision, the architect or engineer turns it around, it goes back into the queue, and you wait again. Two or three rounds of that is common on anything beyond a straight cosmetic update.
Winter makes this worse in a specific way. Frost heave and the freeze thaw cycle here mean any project touching a foundation, a footing, or an exterior addition has to account for frost depth requirements in the plans from the start. If that detail gets missed in the first submission, it comes back for revision, and now you have lost another few weeks during the season when outdoor work is already slower.
What you can check before you're frustrated
You can ask your contractor, plainly, which permits this job needs and where each one currently sits. Building permit, zoning approval if you are changing footprint or adding height, electrical and plumbing permits if those trades are involved. A contractor who has done work in Tredyffrin or Easttown before should be able to tell you roughly how long each typically takes in that specific township, because the pace differs from one township office to the next even within a few miles.
You can also look at your own house history. If previous owners did work without pulling permits, which happens often in older Paoli homes, that unpermitted work can surface during the current review and force an additional step: bringing the old work up to code before the new work gets approved. Check your settlement paperwork or prior inspection reports if you have them. Knowing this ahead of time saves you from being blindsided mid-project.
Where it stops being your job
Reading a permit application and understanding what it requires is homeowner territory. Deciding what supporting documents a township will actually accept, structural calculations, an energy code compliance form, a stormwater management plan for anything expanding impervious surface, is not. That is the general contractor's job, and a good one has already dealt with your township's reviewers more than once.
If your contractor cannot tell you which specific approvals your project needs before work starts, or seems surprised by a township request partway through, that is worth a direct conversation. The schedule slipping because of a legitimate review cycle is normal. The schedule slipping because nobody planned for it is not, and it is a fair thing to ask about before you sign anything.