Extensions, loft conversions and refurbishments in London
We're architects and builders in one team, and we'll guide you through every step of your extension, loft conversion or renovation, from planning permission to the final coat of paint.
Archicon designs and builds extensions, loft and attic conversions, and refurbishments for London homeowners, including listed buildings and homes where planning was refused before. The same team handles design, planning and construction, so you have one point of contact from first sketch to handover, backed by a 95% planning approval rate across 25+ boroughs.
Extensions, Lofts and Full Refurbishments
Whether you need more space for a growing family or want to rethink your home's layout, we handle everything from the first drawings to the building work.
Extensions
Kitchen, rear and side extensions that give your family the space it needs.
Loft Conversions
Unused attic space turned into bedrooms, home offices or living areas.
Refurbishments
Full home renovations and internal reconfigurations, finished properly.
Five Stages From First Conversation to Handover
You'll know what happens at each stage of your project before it starts.
Free Consultation
We talk through your ideas and give you honest advice on what's possible at your property.
Design & Planning
We produce the drawings and handle the planning permission application for you.
Technical Drawings
Detailed specifications give your builders everything they need to work from.
Construction
Our team runs the build from the first day on site to the last.
Handover
We finish with your full documentation and aftercare support in place.
Free Consultation
We talk through your ideas and give you honest advice on what's possible at your property.
Design & Planning
We produce the drawings and handle the planning permission application for you.
Technical Drawings
Detailed specifications give your builders everything they need to work from.
Construction
Our team runs the build from the first day on site to the last.
Handover
We finish with your full documentation and aftercare support in place.
Whole House Extension & Loft Conversion
We combined a ground floor rear extension, a double side extension and a full loft conversion into one coordinated design and build package.
Our team managed the selective demolition, the temporary works and the installation of a new structural steel frame with columns and primary beams.
Steel Frame
Structural Works
Progress View
Technical DrawingClick any image to view full size
Recent Home Projects
Extensions, lofts and refurbishments we've delivered for homeowners across London.
The best projects start with an honest conversation. We'll tell you what's realistic, what the council will look for, and how we can make your vision work within the rules.
One Team for the Whole Project
The same people manage your design, planning and construction, and they've worked together for 20 years. Your project moves between stages without a handover to another company.
Meet the TeamReady to talk about your home project?
Whether your project is still an idea or you're ready to start, we're happy to talk it through. Get in touch for a free, no-obligation conversation.