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Apex glazing and sliding patio doors to balcony, new dwelling by GT Building Design

A Selection of Residential Projects Designed with Care and Clarity

Extensions, conversions and new homes shaped by practical, thoughtful design.

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Top‑Rated with 5‑Star Google Reviews

With over 40 years’ experience working with homeowners across North Down, Greater Belfast and surrounding areas, I specialise in well‑considered residential design — from home extensions, garage conversions, loft conversions, internal alterations and new homes. Every project is approached with clarity, practical thinking and a focus on how you want to live.

If you’d like to explore recent work or get advice on your own project, you can browse my services below or get in touch for guidance or a quotation.

Not sure about the difference between an Architect and a Chartered Architectural Technologist? Read the quick guide →

Project Gallery

A selection of residential projects including extensions, conversions, alterations and new dwellings designed throughout Northern Ireland.

Modern rear extension in Belfast designed by GT Building Design, featuring full‑height glazing opening onto a landscaped gard
Rear extension exterior with glazed doors by GT Building Design, Donaghadee
Modern rear extension in Belfast designed by GT Building Design, featuring full‑height glazing opening onto a landscaped gard
Millisle Road Kitchen (Edited) 01.05_edi
Modern coastal new dwellings by GT Building Design, Donaghadee
Modern coastal new dwellings by GT Building Design, Donaghadee
Modern kitchen extension interior with rooflights by GT Building Design, Donaghadee
Contemporary kitchen extension with skylights and island by GT Building Design, Donaghadee
Light‑filled kitchen extension with roof glazing by GT Building Design, Donaghadee
Stylish bathroom refurbishment in Belfast by GT Building Design
Bright open‑plan kitchen and dining area with modern grey finishes and garden views from a two‑storey side extension project in Gilnahirk, Belfast.
Contemporary living area within a modern rear extension by GT Building Design.
Bright modern hallway with oak staircase, doors and skylight from a new house designed by Glenn Thompson in North Down.
New dwelling with cedral cladding, designed and built by GT Building Design in North Down.
New modern dwelling in North Down by GT Building Design
Contemporary kitchen with dark cabinetry and white worktop from internal alterations project in Gilnahirk, Belfast.
New Railway Cottage with red brick detailing and slate roof designed by Glenn Thompson in Ballyclare.
Bright open‑plan kitchen and dining extension with skylight and garden views designed by Glenn Thompson in Belfast.
Modern single‑storey home extension in Comber with flat roof, large sliding glass doors, sandstone patio and terracotta planters at dusk by GT Building Design
Contemporary rear extension to a beach house in Ballywalter featuring balcony with glass balustrade, warm evening lighting and coastal setting by GT Building Design
Single‑storey side extension in Belfast with raised patio, outdoor dining area and illuminated steps leading down to landscaped garden by GT Building Design
Open‑plan kitchen and living space in Donaghadee home, designed by GT Building Design
Modern green‑kitchen with white island and teal barstools in Donaghadee project by GT Building Design
Open‑plan family room with skylights, mustard sofa and garden views in Donaghadee by GT Building Design

What Clients Say

Real feedback from homeowners across Northern Ireland

Modern house exterior designed by GT Building Design — clean lines, flat roof, contemporary materials.

Albert 

"Glenn recently completed the design and architectural work for me taking his detailed drawings right through the planning office process and building control.

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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."

Two‑storey modern home designed by GT Building Design — large windows, balanced proportions, landscaped setting.

Tommy 

"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.

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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."

Architectural drawing showing kitchen extension plans — detailed floor plan and elevation by GT Building Design.

Ross 

“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.”

Contact Glenn

If you’d like clear advice, ideas or a quotation for your project, I’d be happy to help

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