About LTK Design
LTK Design is an architectural design studio built on a simple but deeply held belief: that the spaces we live in should be good for us — good for our health, good for the environment, and built to last.
Founded by Leandros Koutakos, the studio takes its name from the person behind it. Leandros brings over a decade of experience across residential architecture and design technology, combining a BSc in Architectural Technology and Design with an MSc in Building Information Modelling (BIM) in Design, Construction and Operations. A member of both the Royal Institution of Chartered Surveyors (RICS) and the Chartered Institute of Architectural Technologists (CIAT), Leandros holds himself to the highest professional standards — in design quality, technical rigour, and client care. This blend of creative craft and technical rigour sits at the heart of everything LTK Design does.
At LTK Design we work with natural, breathable materials — hemp, wood-fibre, charred timber, and plywood — chosen not just for their beauty, but for the way they perform. These materials regulate moisture, buffer indoor conditions naturally, and create homes that breathe. It's architecture rooted in how people actually live.
Alongside our residential work, we are proud to introduce Naos (ναÏŒς) — our brand dedicated to prefabricated outdoor saunas and garden rooms. Inspired by the idea of sanctuary, Naos spaces are designed for rest, recovery, and quiet retreat, crafted from the same natural materials and care we bring to every project.​​
​
At LTK Design, we believe great architecture begins with a clear vision and thoughtful collaboration. We're committed to delivering thoughtful, highly personalised service. Our role is to guide that vision through design and detail, transforming ideas into you dream space.
Our Process
Building or transforming a home is one of the most significant things you'll ever do. Our process is designed to make that journey clear, collaborative, and free from unwelcome surprises. We follow a structured six-stage approach aligned with RIBA guidelines — from the very first conversation through to your final handover and beyond. At every stage, you'll know exactly where you are, what's happening next, and why.
1. Strategy & Research
We define the "why" and "how" of your project and confirm its feasibility along with constraints.
2. The Design Concept
This is we create a robust concept that you love and that fits your budget and requirements.
3. Planning & Coordination
Architectural and engineering info is "Spatially Coordinated" before detailed technical work.
4. Technical Detail & Tendering
Complete all technical information required to manufacture and construct your home.
5. Construction & Quality
Physical work begins and we visit periodically to check the work matches the design quality.
6. Handover & Living
The build finishes, you move in, and we ensure everything is running perfectly and help you settle in.
Our Quality Guarantee
At LTK Design, quality isn't a checklist — it's a conviction that runs through everything we do, from the first conversation to the twelve-month check-out.
We specify climate-neutral, breathable materials — hemp, wood-fibre, charred timber, and plywood — chosen for their long-term performance as much as their appearance. These aren't trends. They're materials we believe in because of the way they behave: regulating moisture, supporting healthy indoor air quality, and ageing with integrity rather than against it.
Every project is designed using advanced BIM technology, giving us a level of precision and coordination that reduces costly errors and ensures what's drawn is truly buildable. We don't hand over drawings and disappear — Leandros stays personally involved from concept through to construction, maintaining the design quality at every stage.
As members of both RICS and CIAT, we are held to rigorous professional and ethical standards. That accountability matters to us — not because it's required, but because it reflects the way we already work.
We take on a carefully managed number of projects at any one time, so that every client receives the attention their home deserves. When you work with LTK Design, you're not just hiring a designer. You're working with someone who genuinely cares about what gets built, how it gets built, and what it feels like to live in it for years to come.