Extensions and Loft Conversions
Thoughtfully designed extensions and loft conversions for homes across Essex.
Smart Home Extensions
Loft Conversions
We design home extensions that create more space and improve the way your home works. Whether you’re dreaming of a larger kitchen, an open-plan living space, or an extra room for the family, we work with you to create a design that feels natural and perfectly suited to your home.
A loft conversion is a great way to make the most of unused space. We design lofts that feel bright, comfortable, and fully connected to the rest of your home — ideal for bedrooms, home offices, or a quiet space to relax.
Planning & Permissions
Technical Drawings
Planning can sometimes feel complicated, but we’re here to guide you through it. We prepare the drawings, handle applications where needed, and work with local planning authorities to help move your project forward smoothly.
Once the design is agreed, we produce clear technical drawings ready for construction. These give builders everything they need to price and build your project accurately, ensuring it’s safe, compliant, and built as intended.
What Our Customers Think
"CET designed our side / garage extension, was very helpful on site and clearly has an eye for working within site constraints and foreseeing potential issues."
Joe Palmer
"CET have helped us with 2 projects now and have been excellent both times... I will use CET again and would recommend them to anyone."
Lee Gurton
"We had a great experience using CET... Would 100% recommend."
Daniel Gracie
"Can't recommend CET Architectural Designs enough! Charlotte is very professional and very helpful, the best! I'm a very happy customer."
Gladis Woods