A garden room is one of the most versatile and stylish ways to add usable space to your property. Whether you want a home office, gym, studio, relaxation space or entertainment room, our custom-built garden rooms offer year-round comfort and exceptional durability.
At Chelmsford Building, we design and construct high-quality garden rooms using premium materials, advanced insulation and modern finishes. Every structure is built to last, weather-resistant and fully equipped with electrics, heating and lighting.
Most garden rooms fall under Permitted Development, allowing fast installation without complex planning requirements.
We design and install garden rooms in:
Chelmsford Garden Rooms
Ideal for hybrid working and productivity, offering a quiet, professional space.
Ideal for hybrid working and productivity, offering a quiet, professional space.
Relaxing entertainment spaces with mood lighting, heating and stylish finishes.
Relaxing entertainment spaces with mood lighting, heating and stylish finishes.
What’s Included in Every Garden Room
Create a warm, fully insulated garden room ideal for working, relaxing or exercising all year round. We design and build stylish outdoor offices, gyms and studios using high-quality materials and modern construction techniques. Quick to install and built to last, a garden room is one of the most effective ways to add extra usable space to your Basildon home.
Transform your unused attic into a bright and practical new living space. Whether you need an extra bedroom, home office or ensuite, our loft conversions include all structural work, insulation, electrics and finishing. We build Dormer, Velux and hip-to-gable conversions designed to maximise light, comfort and property value.
Expand your home with a beautifully built single-storey, double-storey or wraparound extension. From open-plan kitchens to larger living areas and additional bedrooms, we manage the entire process — foundations, structure, roofing, glazing and finishing. Our extensions are designed for long-term durability and seamless integration with your existing property.
Unsure where to begin? Let our experts show you designs, layouts, and optional upgrades to create the perfect outdoor room.