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About Me
I help homeowners design practical, well‑considered spaces that feel good to live in. My approach is straightforward, collaborative and focused on clarity — from the first conversation through to Planning and Building Control.
I work with homeowners throughout North Down, Greater Belfast and surrounding areas on extensions, loft conversions, garage conversions and internal alterations. My focus is on clear advice, practical solutions and accurate drawings that make Planning Permission and Building Control as straightforward as possible.
With over 40 years’ experience preparing planning and construction drawings, I take a practical, cost‑aware approach to every project. I keep communication clear and in plain English, so you always know what’s happening and what comes next.
I began my career in 1986 with Hamilton Architects, supporting both commercial and residential projects across Northern Ireland. I founded GT Building Design in 2004 to help families transform their homes with thoughtful, well‑considered design. I handle every project personally — from the first conversation through to the final drawings.
Professional Qualifications & Experience
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Chartered Architectural Technologist (MCIAT)
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Over 40 years’ experience preparing planning and construction drawings
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Founder of GT Building Design (est. 2004)
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Specialist in domestic extensions, loft conversions, garage conversions and internal alterations
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Full Planning Permission and Building Control applications handled personally.
40 Years Experience
1986 Started architectural career at Hamilton Architects, Belfast
1990s–2000s Supporting architects on commercial and residential projects
2004 Founded GT Building Design to focus on helping homeowners.
2004 to Today Specialist in extensions, loft conversions, garage conversions and internal alterations
My Design Principles
Homeowners don’t need complexity - you need clarity, reassurance and a design that works for you.
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Keep things practical and cost‑aware
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Make the process clear and stress‑free
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Design spaces that feel natural, bright and easy to live in
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Communicate openly and honestly
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Provide drawings that Planning, Building Control and Builders can work with confidently
Why Homeowners Choose Me
Clients often tell me they value:
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A friendly, approachable way of working
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Clear, plain-English explanations at every stage
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Designs that balance ambition with practicality
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Quick, efficient communication
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A calm, steady hand from first ideas to approval
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Drawings that make planning and construction simple for everyone involved
What Clients Say
Albert M
"Glenn recently completed the design and architectural work for me taking his detailed drawings right through the planning office process and building control.
From the moment I met with Glenn at my property I felt comfortable. Glenn has been doing design and the architectural drawings for more than 35 years. It’s easy to tell he takes great pride in his work and will take the time to get it just right for you with your feedback.
His drawings are very detailed that in my case it enabled the planning office to grant the approval without changes. Great job Glenn."
Tommy C
"Embarking on any building project can be a very daunting task…
From the outset Glenn impressed us with his knowledge, professional approach and enthusiasm for our project.
He designed us the ideal home making full and best use of our site. Importantly Glenn also produced a comprehensive 34‑page tender document covering all aspects of the build that proved to be invaluable.
We thank Glenn hugely for helping us with what could have been a very stressful experience, and helping us achieve our dream home."
Ross M
“I got in touch with GT Building Design about the possibility of a kitchen extension…
Right from the first email, I knew Glenn was the right man for our project.
Glenn’s final plans for our project are extremely detailed and they sailed through planning and building control with ease due to his extensive knowledge and experience.
We cannot wait to begin work on our dream kitchen space and we have nothing but good words to say about working with GT Building Design.”
A Lean, Efficient Setup Means Better Value
GT Building Design is run from a dedicated home office in Donaghadee. This allows me to work efficiently and offer competitive fees without compromising on the quality of your drawings or the service you receive.
Because there are no commercial office overheads, you benefit from:
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Fair, competitive fees
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No VAT charges
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Lower running costs passed directly to you
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Direct, one‑to‑one service at every stage
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High‑quality drawings without inflated prices
Thinking About Improving Your Home?
A conversation is the best place to start.
I’m always happy to talk through ideas and help you understand the options.
