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GT Building Design | Glenn Thompson MCIAT | Reviews
Google Reviews 5 Stars


New Kitchen

"Glenn provided us with a fantastic service, thanks to his expertise and efficiency we had planning permission granted within a matter of weeks after submitting plans for our two story side extension & renovation. It was a pleasure to work with Glenn and we would strongly recommend GT Building Design. Thank you very much, Charles." 

Charles Casey, Belfast (5 Stars on Google) 

New Sunroom

"GT Building Design drew up plans for a replacement conservatory we were having done. Glenn was very helpful, professional and approachable. We are delighted with the final result and would definitely recommend his work." 

Lynne Williamson, Belfast (5 Stars on Google) 

Home Extension Plans

"Glenn recently helped us with the plans and building control application for an extension on to the side of our house. His experience shone through with each step of the process from the initial drawings, to going through the steps for building control approval. He really made the whole process hassle free and was able to successfully sort out any amendments to the plans quickly in order to keep the process moving along and have the whole thing complete much quicker than I would have thought possible!" 

Shona Barker, Belfast (5 Stars on Google) 

Extension Elevation

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

My job was for him to design and generate the drawings to build a large en-suite bedroom above a flat roof garage/kitchen and also a new utility room off the kitchen and a large living room in in the garden with apex roof. During the process Glenn worked with a firm of structural engineers and oversaw the detailed structural requirements that he then included in his drawing package to 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 style is relaxed and reassuring making you feel you are in safe professional hands. His drawings are very detailed that in my case it enabled the planning office to grant the approval without changes.. Great Job Glenn..."

Albert McAlpine, Donaghadee (5 Stars on Google) 

Existing and Proposed Plans

"Glenn is really easy to work with and is open to different options as plans and budget can change. Nothing is too much bother and he turns around work really quickly and efficiently. Really appreciate his help and guidance throughout this project and will recommend him to everyone we meet" 

Rebecca Ellison, Bangor, County Down (5 Stars on Google) 

Proposed Elevation

"Glenn offered a full design and planning service for an extension to our home. Handled everything from start to finish, very friendly, extremely knowledgeable and helpful especially in relation to getting our planning application approved. Thanks for the great service Glenn." 

Christopher Orr, Holywood (5 Stars on Google) 

Existing and Proposed Plans

"Glenn was very professional and great at guiding us through the complicated process of designing a home extension. He has a keen idea for detail and he made very good suggestions based on his experience which helped form our decision on the extension. Would definitely recommend." 

Stephen McIlhatton, Belfast (5 Stars on Google) 

Proposed Elevation

"Thank you so much for your services! The whole process was easy and stress free! Can’t wait for drawings to come to life" 

Eiran Simmons, Ballyholme (5 Stars on Google) 

New Kitchen

"I wanted to open up the downstairs of my house in order to make the best use of the space available. Glenn reassured me and showed me what was possible. I'm delighted with the finished open plan living space. I would highly recommend his services." 

Wendy Jenkins, Gilnahirk (5 Stars on Google) 

Existing and Proposed Plans

"Would highly recommend Glenn's services. Very professional and provided a high quality service in a timely manner." 

Marion Ritchie, County Down (5 Stars on Google) 

New Garage Drawing

"Glenn was very helpful with regards my garage project. He provided lots of specific details for the builder and produced scale drawings within a very short time period. A great service." 

David Bradshaw, Bangor, County Down (5 Stars on Google) 

Existing and Proposed Plans

"Glenn was attentive and patient, listening to our needs. He delivered a prompt, cost effective and very professional service." 

Wendy Conway, Bangor, County Down (5 Stars on Google) 

Proposed Elevation in Belfast

"Glenn worked hard on my project, kept me well informed and achieved the planning and Building Control permission needed. Would definitely recommend him." 

Mark Caldwell, Belfast (5 Stars on Google) 

Completed Extension

"Glenn was excellent and highly recommended. He was professional throughout and always delivered within the agreed timescales, which for me is very important. His attention to detail was outstanding" 

Alyn Spratt, Belfast (5 Stars on Google) 

Existing and Proposed Plans

"Highly recommend Glenn, he did technical drawings for an extension, and provided a really exceptional service. He was professional and communicated everything clearly throughout the process. Would definitely use again." 

Ewan Lockhart, Belfast (5 Stars on Google) 

Existing and Proposed Plans

"Glenn has been a pleasure to work with. He has been a great support to us as we navigated initial ideas and concepts for a single storey extension and ensuite bathroom. I found Glenn's communication excellent, he kept things moving at pace and responded promptly to the many questions I had! Thanks to Glenn we have now successfully navigated planning and building control in a relatively short space of time. I would recommend Glenn's services for anyone considering an extension or new build." 

Chris Cupples, Belfast (5 Stars on Google) 

Existing and Proposed Plans

"I'm delighted to recommend Glenn's services. From the outset he responded promptly to our enquiry, fully explaining the service he provided and the costs etc. He visited our home promptly and on time, to discuss our garage conversion project. We had a rough idea of what we wanted to achieve, but with Glenn's experience and skill he suggested an alternative plan we had not considered, and which we eventually went with. His drawings and specifications were extremely detailed and very impressive, leaving no detail to chance and giving us confidence that the finished product would be of a very high standard. He managed the process of obtaining planning and building control approval, keeping us updated regularly on progress. When it came to selecting a builder Glenn was again very helpful, and we currently have an excellent builder on site helping to realise the project. Glenn always dealt with us in a very courteous manner, and it has been reassuring to have him in our corner during what can be a very stressful process. I have no hesitation in recommending Glenn to anyone whatever their project, big or small. Thank you Sir for helping us with ours." 

Chris Haggan, Newtownards (5 Stars on Google) 

Existing and Proposed Plans

"Glenn was very understanding of our needs and budget and helped us get a design that fitted our expectations. Very easy to talk to and jargon free, took us through the process of getting a builder involved and what that entailed and then through the planning process from start to finish. Great service."

Carl Thompson, Donaghadee (5 Stars on Google)

New Ensuite

"We consulted Glenn regarding a loft conversion to an en suite bathroom. Our experience of working with him has been first rate from start to finish.


Firstly, his personal traits. Importantly he is reliable – when he says he will visit, call you or meet some deadline, he fulfills whatever commitment he has made. He is affable and enthusiastic, and sees solutions rather than problems. Secondly, he is experienced and professional.


He took us through all the stages needed to complete our project, made useful and practical suggestions we hadn’t considered, and incorporated what we wanted into the design.


This resulted in the quick production of drawings and specifications which he then progressed through Building Control approval. Unfortunately, COVID 19 has delayed building work beginning.


However, we have no doubt Glenn will continue to advise and assist us whenever we can revisit the project." 

Michael Brown, Belfast (5 Stars on Google) 

Existing and Proposed Elevations

"Glenn managed the Design, Planning Consent and outline Building Control Approval for a beach front cottage extension at Ballywalter. I found him highly professional, knowledgeable and efficient with a great attention to detail. At the outset he defined the stages (and associated costs) of the project and these proved to be entirely 'on the button'. I would have no hesitation in recommending Glenn to any prospective client. 

Linda Beers, Ballywalter (5 Stars on Google) 

New Dwellings in Donaghadee

"Embarking on any building project can be a very daunting task, and when we decided to knock down our then holiday home to build our home of the future we set about finding the right partner to ensure we got things right. We found Glenn’s details in a local ad, and arranged to meet him. From the outset Glenn impressed us with his knowledge, professional approach and enthusiasm for our project. Having reviewed what work he had done, we were confident we had found the right man for our job. We appointed Glenn, and 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 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.

Tommy and Mary Charteris, Donaghadee

New Kitchen

"We are really loving the new extension to our kitchen and living area and for the space that it has created for us to host our children and grandchildren. It has been a pleasure to work with Glenn.  We so appreciated his "hands-on" approach and all his guidance and expertise throughout the entire project."

Paul Cupples, Belfast

Rear Extension

Our experience of adding an extension to our house was a very positive one and having Glenn guide us through the planning process was so helpful. From the initial visit to our home and drawing up plans right through to that final call to tell us that our planning application was successful Glenn's professional, friendly and methodical approach was very reassuring. His expertise in dealing with planning department officials and completion of the myriad forms removed a lot of pressure and allowed us to focus on other aspects of the job. We were delighted with the end result and would recommend him to anyone who is looking for a quality service from start to finish. We are on the lookout for a new project and are looking forward to working with Glenn again in the near future!

Aisling and Philip Pelan, Belfast.

New Sunroom

“Dear Glenn, thank you for forwarding on all the relevant documents which I will keep safe. I appreciate so much all the expert advice you have given to me, and all the consideration and patience! You are an angel, yours sincerely Sylvia .”

Sylvia Higgins, Lisburn

Rear and Side Extension

"From our first meeting and then subsequent meetings with Glenn we felt comfortable with him as our Architect. This was because he listened to our suggestions and incorporated them into his initial drawings. Drawing on his expertise, he came up with several ideas we would not have considered. He guided us through the planning application and subsequent building control. Glenn was always friendly, open and someone we could trust to "keep us right" Now that all the work is finished, we are so glad we used GT Building Design"

David and Pauline Murdoch, Newtownards. (5 Stars on Google) 

Existing and Proposed Plans

"Glenn did a first rate job. He was attentive and prompt. The drawings for our extension were meticulous and praised by the City Council. He left nothing out and his service was excellent throughout the whole process. I have no hesitation in recommending him to you"

Paul and Priscilla Reid, Belfast (5 Stars on Google) 

Proposed Elevations of Garage

"Glenn was very professional, understanding of what we needed and patient with us from start to finish on our garage conversion project. We got through planning and building control approval extremely quickly which was great with no hiccups. I would gladly recommend him to anyone based on our experience. Thanks again Glenn"

Aaron Henderson, Newtownards (5 Stars on Google)

Proposed Plans

During July 2014, we decided to extend instead of move house, and hired Glenn to provide the drawings. What an excellent job Glenn did for us. He was fast, efficient, and kept us updated each step of the process. He took all the stress out of the process by notifying the neighbours, notifying the Planning Office, and worked closely with our builder. He supplied a full written quotation, with a clear itemised price of each stage, and forwarded all important documentation quickly. Planning Service rejected the first set of drawings, but Glenn phoned us immediately to discuss alternatives, which were passed the second time, and nearly a year to when we started the application, we are delighted with the end result. We definitely recommend Glenn for his professionalism and expertise.

Campbell and Maureen Beers, Bangor. 

Proposed Garage

"Hi Glenn. This is just a little note to thank you for the professional, prompt and efficient way that you have designed the plans for my new garage. I am really pleased with the drawings and looking forward to getting the work started as soon as possible! It has been a pleasure dealing with you and I will be happy to recommend your services in the future. Regards Bryan"

Bryan Halpin, Groomsport. 

"Glenn has done design work for me on a house extension and in support of retrospective planning and building control applications. He brings a degree of expertise that makes the process straight forward and always delivers efficiently and on time. Easy to work with too, which is always a bonus. Highly recommended"

Will Brown, Donaghadee

"We engaged Glenn to make substantial amendments to plans for refurbishing the ground floor of our house on the recommendation of our builder. From the outset, we found Glenn to be extremely professional, reliable, easy to work with, and always willing and able to answer any queries that we might have. Following an initial briefing, Glenn produced preliminary drawings within a quick time-frame that delivered in terms of meeting our needs, wants and budget. Glenn listened carefully to what we wanted and worked hard to ensure that this was feasible. Glenn dealt with all of our queries promptly, efficiently and, equally importantly, courteously. All meetings took place at our house and at times that were convenient for us. Things happened when they were supposed to happen, which made the whole process and, incidentally, our lives much easier! All in all, we are very happy with the service supplied by Glenn and have no hesitation in recommending GT Building Design to future clients."

Caroline and Philip Maguire, Belfast

“Thank you for doing the job so promptly and efficiently.”

Julie McDonald, Comber.

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