Whether you're a developer assessing a site or a homeowner planning an extension, we handle the full process under one roof: feasibility, planning strategy, technical design and construction. We work across London, and UK-wide for developers we already work with.
Archicon is a London architecture and construction practice for property developers. We take conversions, HMO and commercial-to-residential, from feasibility and planning strategy through to completed build, designed to maximise GDV and pass planning first time. One senior team throughout, a 95% planning approval rate across 25+ boroughs, and a track record of rescuing refused and constrained sites.
We start with what you want to achieve, then work backwards so every detail supports that goal. Getting it right at the beginning is what keeps the surprises out of the build.
Every project follows the same clear route, and you'll know what happens at each stage before it starts.
Every project starts with a clear view of what's possible. We visit your property, talk through your ideas, and give you honest advice on planning permission, what you can realistically achieve and the likely cost, all before you commit to anything.
Once we understand what you want, we create the detailed designs and handle the planning paperwork. We know what London councils look for, so we design with approval in mind from the first sketch.
After planning approval, we produce the technical drawings your builders work from. Everyone on site knows precisely what's being built, which keeps costly mistakes and delays off the programme.
Our construction team runs the whole build. You keep one point of contact throughout and get regular updates, so you always know what's happening on site and when.
When the work is finished, we carry out a thorough check, hand over the full documentation, and make sure you're happy with the result before we sign off.
Knowing what your site can accommodate comes before any design work. Our site planning covers feasibility studies, density analysis and pre-application advice, so you know what can be built on the plot, whether that's a rear extension, a loft conversion or a multi-unit development.
For property developers, this is also where ROI is decided. We model yield, density and viability against local plan policy before a single drawing is produced. Where a scheme has already been refused, we review the notice to establish whether the grounds are policy or design, and whether a resubmission can succeed.
Constrained sites are where this thinking matters most. Nash leads planning strategy at Archicon, reading policy creatively to find the precedent or design move that makes a tight, awkward or previously refused site deliverable. Where another practice sees a non-starter, we look for the route to consent.
From Hammersmith and Fulham to Greenwich and Bexley, we bring integrated architectural design and construction experience to every borough. Our team has secured planning approvals across Lewisham, Southwark, Croydon and beyond, so we know what each council expects to see.
Because we design, gain consent and build in-house, your site carries through from feasibility to completion with nothing lost between the stages.
The same people manage the design, the planning and the building work, so your project moves between stages without a handover to another company.
You get regular updates, honest timelines and plain explanations of every decision that affects your cost or programme.
Two decades on London projects has taught us what gets built well and what each council wants to see in an application.
The best projects happen when everyone shares the same picture. We'll always tell you what's possible, where the limits sit, and how we can make your vision work within the rules.
Whether you're still turning over the idea of an extension or you're ready to start, we're happy to talk it through. Get in touch for free, no-obligation advice.