Short answer: Glen Mills is a postal name, not a township. Glen Mills addresses near West Chester, PA fall mainly in Thornbury Township (Delaware County), Concord Township and Chester Heights Borough, and each sets its own fence permit rules. Check your tax bill for your municipality, then confirm the permit requirement with it. We do that check for you.
Glen Mills sits where Chester County meets Delaware County, a short drive southeast of West Chester, PA, and its mailing area takes in several municipalities on the Delaware County side. That is why two neighbors with the same Glen Mills address can face different fence rules. The confusion runs deeper here than most places, because there are two Thornbury Townships, one in each county, with different codes.
- Municipalities: mainly Thornbury Township (Delaware Co.), Concord Township and Chester Heights Borough
- Two Thornburys: Thornbury Township, Chester County, has its own code — make sure you read the right one
- Permit: check with your municipality; rules for these areas are not summarized here
- Housing: newer subdivisions alongside older homes and wooded lots
- Before digging: PA One Call notice 3–10 business days ahead; we place it
Which Thornbury Township am I in?
If your address says Glen Mills, most likely Thornbury Township in Delaware County. Thornbury Township in Chester County sits nearby, closer to West Chester, PA, and has its own separate ordinance.
This matters because the Chester County township’s rules are specific: a permit before any fence, a 6-foot maximum in any yard, at least 6 inches off the property line unless the neighbor agrees in writing, and the finished side facing out. Those rules belong to Thornbury, Chester County, and should not be assumed for the Delaware County township. Our Thornbury page covers the Chester County township in detail.
| How to find your rules | Where to look |
|---|---|
| Your municipality | Property tax bill, deed, or the county parcel viewer |
| Your county | Delaware or Chester, from the same tax bill |
| Fence rules | That municipality’s zoning code and permit office |
| HOA rules | Your community’s declaration and architectural guidelines |
What fences work in Glen Mills neighborhoods?
In planned communities, usually the fence the HOA already approves, which is often white or tan vinyl. On older wooded lots, wood and black chain link are more common.
Many Glen Mills subdivisions were built with a consistent look, and associations protect it. White vinyl semi-privacy and picket fences are the default in many of them because they match the trim and need only an annual wash. If your association lets you choose, our vinyl vs. wood comparison sets out the trade-offs. We prepare HOA submissions as part of our HOA approval service.
On older lots that back onto woods, black vinyl-coated chain link keeps a dog in without drawing attention, and it holds up to falling branches better than tall solid panels.

How does a Glen Mills fence project run from estimate to install?
In five steps, and the order matters most when an HOA and a municipality both have a say.
- Free on-site walkthrough. We measure, look at grade, gates and trees, and talk through materials and your HOA’s rules.
- Confirm the municipality. We check which township or borough governs your lot and what it requires.
- HOA approval. If you are in an association, its written approval comes before the permit application.
- Permit and PA One Call. We file the application and place the utility locate request 3 to 10 business days before digging.
- Installation. Most residential fences take about a day or two on site once materials arrive; weather can shift the date.
Our fence installation timeline guide explains where the waiting usually happens.
Do pool fences in Glen Mills follow the state code?
At a minimum, yes. Pennsylvania’s adopted pool barrier code requires a barrier at least 48 inches high, openings that will not pass a 4-inch sphere, and self-closing, self-latching gates. Your municipality may add to that.
Gates are where most pool barriers fall short: a latch set too low on the outside, or a gate that swings toward the pool. Black aluminum with a magnetic, self-closing latch is the usual answer in Glen Mills back yards, and it should be inspected before the pool opens. Our PA pool fence code guide explains each requirement.
For neighboring areas, see Chadds Ford, Westtown and Thornbury, or the full fence permit guide.
Rules change, so confirm with the township — when you hire us, we pull the permit.
Walk the fence line with us.
A free on-site estimate in West Chester, PA and the surrounding townships. We check the rules for your street, handle the permit and HOA paperwork, and call PA One Call before we dig.
Sources & references
Codes and ordinances change. This page is general information, not legal advice; confirm requirements with your municipality.