Thinking about updating your deck? You’re not alone. At MBA Builders, we get this question all the time: “Do I need a permit to renovate my deck?” If you’re in Massachusetts, the answer is usually yes – but the specifics depend on the scope of your project and your local building department.
Key Summary
In most Massachusetts towns, you’ll need a permit to renovate a deck – especially if you’re making structural changes, expanding the footprint, or changing the height. This blog breaks down when a permit is required, what the process looks like, and how MBA Builders helps you handle it without the headache.
When You Need a Permit
You typically need a building permit for deck renovations if you’re:
- Changing the deck’s size or height, especially on older homes, where even small changes might trigger full code upgrades. Not sure if that applies to your home? Reach out and we’ll help you figure it out.
- Altering structural components like joists or posts
- Replacing footings or supports
- Adding railings or stairs
If you’re simply restaining, replacing a few boards, or doing minor cosmetic updates, you won’t need one – but we can check with your town’s building department, so you don’t need to worry about that.
Why Permits Matter
We get called to repair or replace decks that have not been done to code. Rail too low? kid falls over. Loose board? Aunt Mary trips. Spindles aren’t the proper distance? Puppy sneaks through. Joists aren’t properly supported? Deck starts sinking inch by inch.
Who Handles the Permit Process?
If you’re DIY-ing, you’ll need to apply for the permit yourself. That usually means filling out paperwork, providing plans, and possibly scheduling inspections. At MBA Builders, we take care of the entire process for you – no back-and-forth with town offices required. Our team works directly with local inspectors to ensure everything’s approved and up to code.
Massachusetts Rules Vary by Town
In Massachusetts, what you’re allowed to build – and where – can vary significantly depending on your town. One town might allow a 12-foot deck off the back of your house, while 15 feet could be a hard no in another. Porticos and screened-in porches may have different requirements than open-air ones. Even details like where your grill is placed, or whether it sits on wood decking, can come into play.
Zoning setbacks matter too – especially how close your deck footings can be to your property lines on the sides or rear. And if you’re near wetlands or conservation areas, additional rules may apply. In protected zones overseen by groups like the Natural Resources Defense Council, regulations often focus on your distance from wetlands, not just your property line.
We’ll walk you through all of this when planning your deck renovation – making sure your design is compliant, safe, and ready for approval in your specific town.
Renovating vs. Rebuilding
If your deck is in rough shape, you may be wondering if it’s worth renovating or if you should start fresh. Keep in mind: full rebuilds always require permits. Our team can evaluate your deck’s condition and help you weigh your options – renovation, rebuild, or a full redesign with our home design services. No matter what we find, we’ll give you our honest take on the best path forward – even if it’s not the biggest project for us – because earning your trust and creating a deck you love matters more than anything we build.
Frequently Asked Questions
How do I know if I need a permit in my town?
The fastest way is to check your town or city’s building department website. Or, reach out to MBA Builders and we’ll help you find the answer.
What happens if I renovate without a permit?
You could face fines, be required to undo the work, or run into trouble when selling your home. It’s not worth the risk – always check first.
How long does it take to get a deck permit?
Timing varies by town, but in most cases it takes 1–3 weeks. We’ll factor permitting timelines into your project schedule so there are no surprises.
Do I need an inspection after renovating my deck?
If your renovation required a permit, yes. Your town’s building department will schedule an inspection once the work is done to ensure it meets code.
Do you help with deck renovations outside Greater Boston?
We judge on a case by case basis depending on your distance from our home base and what’s on our plates in that time frame for our carpentry teams. Contact us to see if we serve your area and learn more about our full range of design and remodeling services.