Electric Regulations and Garden Rooms
Constantin Tiseanu • 27 May 2025
🌿 Why New Electric Regulations Matter for Your Garden Room ⚡

In recent years, garden rooms have exploded in popularity — from stylish home offices to peaceful yoga studios or even cozy guest spaces. But did you know that new electric regulations introduced this year could impact your garden room setup?
Garden rooms are no longer just storage sheds — they’ve become home offices, hobby studios, gyms, and even guest suites. But here’s something many homeowners overlook:
👉 Are your garden room electrics up to the latest standards?
With the introduction of the 2025 electrical regulations update (based on the 18th Edition Wiring Regulations Amendment 3), there’s more focus than ever on making sure outdoor structures like garden rooms are safe, efficient, and compliant.
In this post, we break down why it matters and what you can do to stay protected.
🔌 What Are the New Electrical Regulations?
The latest UK electrical rules tighten safety measures for:
✅ Correct outdoor cabling (such as SWA — steel-wired armored)
✅ Circuit protection with RCDs or RCBOs to prevent shocks
✅ Proper earthing and bonding for separate garden buildings
✅ Certification under Part P of Building Regulations
The goal is simple: to reduce risks of fire, shock, or system failure, especially in outdoor settings where exposure to weather, moisture, and fluctuating loads are common.
🌱 Why Your Garden Room Needs to Comply
Even if your garden room was installed just a few years ago, it may not meet today’s standards. Here’s why compliance matters:
⚠ Insurance risks — Non-compliant electrics can invalidate your home insurance in case of fire or accidents.
⚠ Safety hazards — Faulty or overloaded circuits can cause electric shocks or fires, putting your family at risk.
⚠ Resale value — When you sell your home, electrical certificates are essential for legal compliance and buyer confidence.
🔧 What Should You Do Next?
Here’s how to ensure your garden room is up to code:
✅ Book an electrical inspection — Have a qualified, registered electrician check your setup.
✅ Upgrade if needed — If your circuits, cabling, or sockets fall short, invest in an upgrade for safety and peace of mind.
✅ Get certified — Make sure all work is properly signed off and you receive the necessary Part P certification.
✅ Future-proof — If you plan to add heaters, lighting, or tech, make sure your electrical system can handle the extra load.
🌟 Don’t Wait — Protect Your Garden Room Today
Your garden room is more than just a backyard building — it’s an extension of your home and lifestyle. Staying up to date with the latest electrical regulations isn’t just a legal requirement — it’s about keeping your space safe, insurable, and ready for the future.
👉 Ready for a garden room safety check?
Contact our trusted electricians today for a no-obligation inspection and get peace of mind knowing your garden space is fully compliant.
📞 Call us at
07966800519
📧 Email us at
costi@trj-construction.co.uk
🌐 Visit www.trj-construction.co.uk to book online

At TRJ Construction Ltd, we take pride in turning our clients’ visions into reality, no matter how complex the project. One of our recent builds presented a unique challenge—there was no direct access to the garden through the house, making a traditional installation impossible. But challenges like these don’t stop us. Instead, they push us to find innovative solutions. Our team, led by Costi, carefully planned and executed the project by craning the entire structure over the house. This required meticulous coordination, precision, and problem-solving to ensure a seamless and safe installation. Despite external factors, such as rising transport costs, we remained committed to our original quote, ensuring transparency and trust with our client. From start to finish, our focus was on delivering exceptional craftsmanship and high-quality materials to create a stunning, fully functional garden room. We paid close attention to every detail, ensuring the finishing touches matched the client’s expectations. The result? A beautiful, modern garden room that exceeded all expectations. Our client was thrilled with the final outcome and shared their appreciation for our hard work, diligence, and dedication to quality: "Costi and his team have done an incredible job at making our garden room vision a reality. Throughout the process, Costi has been very meticulous, hard-working, diligent, and prompt. He had solutions for every construction challenge and delivered a very high-quality garden room which we really love. I was impressed by how Costi remained committed to the original quote despite transport costs going up. He went above and beyond to make sure that the finishing materials I wanted were used and that the workmanship was high quality. I would not hesitate to recommend TRJ for any garden room or annex project." At TRJ Construction Ltd, we believe that every project is an opportunity to create a beautiful and functional space for our clients, regardless of the challenges we face. Whether it’s a garden gym, home office, or guest annex, we bring experience, expertise, and dedication to every build. 📍 Location: Just outside Central London 📞 Get in touch today for a free consultation and let’s create your dream space! #GardenRoom #HomeGym #OutdoorLiving #ExpertCraftsmanship #TRJConstruction #LondonHomes