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Family run business with 20+ years of experience

Architectural Design & Build.

Sustainable Luxury, Designed for Life, Built to Last

At QTD Ltd, we create luxury architectural designs that balance timeless elegance with modern sustainability. From intimate residential spaces to ambitious commercial projects, every build is crafted with meticulous attention to detail, premium materials, and a commitment to environmental responsibility. Whether you choose our design-only service or our complete design & build solution, we deliver spaces that are as enduring as they are beautiful.

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Why Choose QTD Ltd for Your Architectural Project?

With over 25 years of experience in high-end residential and commercial design, QTD Ltd delivers a complete architectural service defined by craftsmanship, creativity, and care. Whether it’s a luxury garden studio, a bespoke home extension, or a full-scale build, we create spaces that elevate how you live and work — sustainably and beautifully.

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Led by Emma Sidey, RIBA Part 2 Architectural Designer, our design-led process ensures every project is tailored to your site, lifestyle, and aspirations. Our team combines technical precision, design excellence, and a profound understanding of materials, particularly timber, to deliver architectural solutions that are built to last.

THE QTD LEGACY: INNOVATION, CRAFTSMANSHIP, AND SUSTAINABILITY

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#1 Design & Build Expertise
From concept through to construction, we offer a seamless experience, managing every stage of the journey with a trusted in-house team.

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#2 Sustainable by Design
We specialise in sustainable, luxury architecture that prioritises long-term performance, low environmental impact, and natural beauty.

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#3 Luxury at Every Scale
Whether it’s a small-scale studio or a large residential project, every detail is considered, refined, and delivered to exceptional standards.

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#4 Clear Process, Clear Outcomes
Our detailed design packs, fixed-fee packages, and transparent timelines make the experience stress-free from the start.

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#5 Proven Track Record
We’ve designed and built for leading names like Berkeley Homes, Microsoft, Shanley Homes, and LEGOLAND and bring that same level of quality to every private client we work with.

Our Design Packages

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Design-Only Package

Complete Architectural Design for Self-Managed Projects

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A comprehensive architectural design service for clients who plan to manage their own build or appoint their own contractor. We deliver everything you need to get your project from concept to construction-ready — with all drawings, specifications, and documentation included.

 

What’s Included:

  • Initial consultation & site review

  • Up to 3 layout options

  • Final rendered visuals

  • 2–3 rounds of design revisions

  • Full set of architectural drawings (to scale)

  • Annotated material & finishes specification

  • Build performance notes & services summary

  • PDF design pack + DWG files (on request)

  • Physical material board for contractor reference​

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Full Design & Build Package

Our Seamless End-to-End Service From Concept to Completion

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For those seeking a high-end, stress-free design and build experience, this package delivers a fully coordinated project under one roof. We handle the full architectural design, and our trusted construction partners expertly deliver the build — ensuring quality, continuity, and a single point of contact throughout.

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What’s Included:

  • Everything from the Design-Only Package

  • Ongoing design guardianship during the build

  • Site visits at key stages (4–6 typical)

  • Coordination with our trusted build team

  • Final detailing, sign-offs, and design adjustments

  • Attendance at key site meetings

  • Seamless experience from start to finish

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How We Work

A Clear, Collaborative Process — From First Ideas to Final Delivery

At QTD Ltd, we believe great design deserves great execution. Whether you're commissioning a small garden studio or a large residential or commercial project, our process ensures clarity, quality, and peace of mind throughout every step.

Here’s an overview of each step:

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STEP 1:

Free Consultation

We begin with a no-obligation discovery call. This is your opportunity to share your ideas, goals, and must-haves. We’ll discuss site details, timelines, budget, and answer any early questions you may have.

From this initial conversation, we gain a clear sense of what you hope to achieve and how we can best support you.

STEP 2:

Brief Development & Site Review

Once you’re ready to proceed, we develop a tailored project brief to define the scope. We carry out a desktop review of your site and, where applicable, conduct a physical site visit to assess orientation, access, topography, and other design constraints or opportunities. This ensures that our approach is grounded in real-world practicality from the outset.

STEP 3:

Tailored Fee Proposal & Agreement

You’ll receive a bespoke proposal outlining the best package for your needs: either our Design-Only service or our Full Design & Build service. We clearly define deliverables, timelines, and fees. Once approved, we secure your slot in our design programme and set a realistic schedule for deliverables.

STEP 4:

Concept Design & Visualisation

The creative process begins. We explore up to three layout options, ensuring you have choices that reflect different possibilities for your space. Through professional 2D plans and 3D rendered visuals, we help you visualise the design in a tangible way. All options are reviewed together in a design meeting before we refine and finalise.

STEP 5:

Technical Drawings & Specification Pack

We translate your approved concept into a comprehensive design pack including:

  • Fully dimensioned, annotated architectural drawings

  • Materials and finishes specification

  • Performance and build notes

  • Services and utilities summary (if required)

You receive a PDF pack ready for planning submission, pricing, or contractor use — with DWG files available on request.

STEP 6:

Construction Coordination (if Full Design & Build)

If you opt for our end-to-end service, we remain actively involved throughout the construction phase. We coordinate with our trusted build team to:

  • Attend key site meetings

  • Review workmanship and material choices

  • Resolve queries and adapt designs as required

  • Maintain design integrity and ensure attention to detail on-site

We act as your creative guardian, ensuring your design vision is faithfully delivered.

Handover & Completion

The final stage includes a quality check, final design sign-offs, and official handover. You can relax knowing your space has been delivered with precision, care, and timeless design at its core.

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Book Your Free Consultation

Your journey starts with a conversation and we’d love to hear about your project.

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