Deck Permits in Lower Allen Township, PA: 7 Things to Know Before You Build
TL;DR — Deck Permits in Lower Allen Township, PA
- Almost every deck needs a permit — either a building permit, a zoning permit, or both, depending on the height of your deck.
- You'll need detailed drawings and a site plan. Vague sketches won't make it through review.
- Lower Allen Township follows the Pennsylvania Uniform Construction Code (UCC), which sets specific standards for everything from lumber grades to footing depth.
- Plan for 3 inspections: footing, framing, and final.
- Building without a permit can mean fines, stop-work orders, or being forced to tear the whole thing down.
You've got a vision locked in: a sprawling composite deck off the back of the house, or something simpler with a few chairs and a grill. Either way, before any of that becomes real, there's one step that tends to frustrate people: the permit.
Nobody loves dealing with permits. But skipping that step in Lower Allen Township can lead to fines, forced tear-downs, and headaches that make the permit process look like a walk in the park. The good news is it doesn't have to be that complicated — especially when you know what to expect going in.
At Keystone Custom Decks, we've been building decks across Central PA for over 40 years. We’ll walk you through this process so you can show up at the permitting office like an old pro.
Read on—because you’re one step closer to building a deck in Lower Allen Township in the heart of Cumberland County!
Do You Need a Permit to Build a Deck in Lower Allen Township?
Almost certainly “yes”, though the type of permit you need depends on how high your deck will be off the ground.
If any part of your deck's walking surface is more than 30 inches above grade, you'll need a full building permit. This is the more involved process, covering structural integrity and requiring compliance with the Pennsylvania Uniform Construction Code.
If your deck sits 30 inches or lower, you’re exempt from a building permit, but you'll still need a zoning permit, which is a lighter process focused more on placement and property line distances than structural details.
So even a small, low deck isn't a free pass. The safest approach is to assume you'll need a permit and to confirm with the Township before you dig a single footing.
Lower Allen Township's Code Enforcement office handles these reviews. You can find their contact info and current requirements at the Lower Allen Township website.
How to Apply for a Deck Permit in Lower Allen Township
The permit process has a reputation for being confusing, mostly because the information is scattered across different forms and departments. Here's how it actually works.
Step 1: Download the Right Forms
Start at the Lower Allen Township Permitting page, where you'll find the residential building permit application, the fee schedule, and any applicable checklist.
Step 2: Gather Your Plans and Documents
This is where careful preparation really pays off. You'll need to submit two copies of your construction drawings, which should clearly show:
- The ledger size and connection details (how the deck attaches to your house)
- Beam span and size
- Joist size, spacing, and span
- A cross-section of the deck's structure
- Stair, guardrail, and handrail details, if applicable
You'll also need two copies of a site plan — a drawing of your property showing where the deck sits and how far it is from the property lines. You can pull that off the Township’s GIS map, or the Township's Planning and Zoning Department can often help you get a copy of your property's existing site plan if you don't have one.
Incomplete or vague plans are the number one reason permits are delayed, so the more thorough your drawings are, the smoother things go.
Step 3: Know Who Can Pull the Permit
In Pennsylvania, a building permit can only be pulled by the property owner or a licensed contractor. If you're hiring someone to build the deck, make sure they're properly licensed in the state before work begins.
Step 4: Understand the Fees
Permit fees in Lower Allen Township are typically based on the proposed deck's square footage, and an invoice is usually issued once the application is approved.
Step 5: Submit and Wait for Review
Submission is typically done in person or by email. Once received, the building codes officer will review everything for accuracy and code compliance. Having complete, clear plans significantly speeds up this process.
Zoning, Setbacks, and Placement: Where Can the Deck Go?
Even after your permit is in hand, there's still the question of where the deck can actually go on your property. That's where setbacks come in — the required minimum distances between your deck and your property lines.
These rules live in the Lower Allen Township Zoning Ordinance, and they vary depending on your specific zoning district. In most residential zones, you can generally expect:
- Front yard: Decks typically need to stay behind the front building line
- Side yard: Minimums often range from 5 to 15 feet, depending on the district
- Rear yard: Often 10 to 25 feet, again depending on the zone
One thing worth knowing: unenclosed, uncovered decks are generally treated as part of the principal building under the zoning code. That means your deck can't simply be positioned wherever it fits. It still has to respect the same setbacks as your house.
If you're unsure how your property is zoned or what the setbacks are for your specific lot, the Lower Allen Township Planning and Zoning Department is a good first call before you finalize your deck layout.
8 Code Requirements Your Deck Must Meet
This is where things get specific, and specific is a good thing, because these requirements are what keep a deck standing safely for decades. They come from Pennsylvania's adoption of the International Residential Code (IRC) and aren't optional.
1. Lumber and Treatment
All structural lumber must be grade #2 or better, and pressure-treated per AWPA U1 standards. This isn't just a technicality. It's what protects your deck from rot, decay, and insect damage over the long haul.
2. Corrosion-Resistant Fasteners
Every piece of hardware — joist hangers, post bases, connectors, screws, bolts — must be corrosion-resistant. Acceptable options include:
- Hot-dipped galvanized (ASTM A 153, Class D for fasteners 3/8" or smaller)
- Mechanically deposited zinc-coated steel (ASTM B 695, Class 55 minimum)
- Stainless steel
Any nails used must also be threaded, which prevents them from backing out as the wood expands and contracts with the seasons.
3. Ledger Board Connections
For attached decks, the ledger board should be at least 2x8 inches, with proper flashing installed to prevent water from entering the home's structure. The connections must also be designed to resist uplift loads.
4. Lateral Load Connectors
Lateral load connectors can be challenging for inexperienced DIY homeowners. Your deck is required to have:
- At least 2 lateral load connectors within 24 inches of each end of the deck, each rated for a minimum of 1,500 lbs.
- At least 4 additional lateral load connectors, each rated for at least 750 lbs
These connectors are what keep the deck from pulling away from the house during high winds or other lateral forces.
5. Footings
- Footings must be installed below the frost line. In Pennsylvania, that's typically 36 inches deep for attached decks
- They must be sized to support a 40 lbs per square foot load
They must be concrete, and they cannot put lateral pressure on the home's foundation
6. Guardrails
If your deck is more than 30 inches above grade, a guardrail is required. Specifically:
- Minimum 36 inches high, measured from the deck surface
- Baluster spacing must prevent a 4-inch sphere from passing through
- No more than a 4-inch gap between the deck surface and the bottom rail
7. Stairs
If your deck includes stairs, here's what the code requires:
- Minimum 36 inches wide
- Risers no more than 7.75 inches high
- Treads at least 10 inches deep
- Variation between risers and treads cannot exceed 3/8 inch
- Handrails are required for any stair flight with more than 4 risers, mounted between 30 and 42 inches above the tread nosing
8. Posts and Beams
- Posts must be restrained at the base to prevent lateral movement
- All bolted connections require 1/2-inch galvanized bolts with washers under both the head and nut
- Beam sizes must follow IRC Tables R507.5(1-4) based on live load and snow load
- Beam plies must be fastened with two rows of 10d nails at 16 inches on center
Three Inspections You Should Expect
Getting the permit is only part of the process. The Township will also want to inspect the work at key stages to make sure everything is being built correctly. Missing an inspection — or covering up work before it's been checked — can mean tearing things apart to expose what's underneath.
Here's the typical sequence:
1. Footing Inspection
This one happens before you pour concrete. The inspector verifies the depth, size, and placement of your footings. Don't pour anything until this inspection is complete and approved.
2. Framing Inspection
This takes place after the frame is up, but before any decking boards or railings are installed. The inspector will check lumber sizing, beam and joist connections, ledger attachment, and lateral bracing to make sure the structure is sound.
3. Final Inspection
Once the deck is fully complete — decking, railings, stairs, and all — you'll need a final sign-off before anyone uses the space. Your deck cannot be occupied until you have this approval in hand.
What Happens If You Build Without a Permit?
It's tempting to think you can quietly build the deck and sort the paperwork out later. But the consequences of building without a permit in Lower Allen Township are serious enough that it's really not worth the gamble:
- Fines and penalties: In many townships, each day of continued violation counts as a separate offense, and these fines can compound
- Stop-work orders: that halt your project immediately and can cause significant delays
- Forced modification or tear-down if the deck doesn't meet code, which is far more expensive and disruptive than getting the permit up front
- Safety risks: a deck built without proper inspections may have structural issues that put people at risk
- Homeowner's insurance gaps: many policies won't cover damages or injuries related to unpermitted structures
- Resale complications: an unpermitted deck can surface during a home inspection and complicate or kill a sale
The permit process exists to protect you, your family, and your investment. It's not just red tape. Ignore the rules, and you wind up on the township’s naughty list forever.
Why Work With a Local Contractor?
Honestly, most people don't struggle with building the deck. They struggle with the process around it. It’s the paperwork, the drawings, the inspection scheduling, the back-and-forth with the Township, and so on. That's where a local contractor who knows the area makes a real difference.
At Keystone Custom Decks, we handle it all. We know what Lower Allen Township expects in a permit submission, we produce drawings that move through review without unnecessary delays, and we build to code so inspections pass cleanly the first time. When you work with us, you get a deck that's beautiful, structurally sound, and fully permitted, without the headache of managing it all yourself. All you need to do is anticipate the day you take over the deck.
Ready to get started? Contact us today, and we'll take it from here!
Disclaimer
Any bureaucracy, although it may seem slow, is also very fluid. While the information in this blog has been researched to the best of our knowledge, it’s important to note that:
- The information is gathered from publicly available online sources
- Permitting rules and requirements can change or vary by township
- It is always best for the homeowner to confirm directly with their local township or permitting office before starting construction.