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GT Building Design

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Contact Glenn today to discuss how he can support your project from start to finish Please feel free to get in touch.

GT Building Design is a Chartered Architectural Practice with 40 years experience helping homeowners plan extensions, loft conversions, garage conversions and renovations. I established GT Building Design in 2004 to specialise in residential architecture and it's a privilege helping clients extend, improve or build their new homes. I would welcome the opportunity to help you with your project

As a Chartered Member of CIAT I can guarantee you good design, a professional service and will conduct my business with you in mind. I provide a personal service and will work closely with you to understand your needs and budget. Whether you need plans for your project, or a qualified professional to guide you, as a Chartered Architectural Technologist (MCIAT) I can help you regardless of your projects size. Thank you, Glenn

E: [email protected]
M: 07719912695
W: www.gtbuildingdesign.com

22/10/2026

Architect vs Technologist NI — New Advice Page

Homeowners across Northern Ireland often ask who’s best to design domestic projects such as extensions, loft conversions, garage conversions and internal alterations.

I’ve written a clear, structured guide explaining the difference between an Architect and a Chartered Architectural Technologist — specifically within the Northern Ireland context.

If you’re planning home improvements and want practical, compliant, cost‑aware advice, this will help you make the right choice.

(Info in comments)

11/10/2026

🏡 Garage Conversion in Donaghadee — Designed by GT Building Design

An unused garage transformed into a warm, fully insulated study with a walk‑in wardrobe above — all completed without a planning application. The floor was raised to match the main dwelling, insulation and ventilation upgraded to Building Control standards, and a new window installed to flood the space with natural light.

A straightforward way to add value and comfort without extending your home.
👉 Read the full story on my website’s blog — just search “GT Building Design Donaghadee”.

05/10/2026

More space, more light, better flow. This Newtownards home has just received Planning Permission for a rear extension, internal layout improvements and new dormer windows — all designed to make the house work better for everyday living.

You can view the full design proposals, existing survey and approved planning drawings in the blog.

A modern home extension in Newtownards featuring a rear garden room, internal alterations and new dormer windows — professionally designed by GT Building Design with full planning approval.

03/10/2026

Just published a new project update, a single storey rear extension in Belfast.

From the first concept right through to the detailed Building Control drawings, this one shows exactly how GT Building Design develops a clear, buildable design for homeowners.
If you’re planning an extension and want a proper, structured design process, have a look.

https://www.gtbuildingdesign.com/post/single-storey-rear-extension-in-belfast

12/09/2026

New blog live today — a clear guide to the architectural design process in Northern Ireland. If you’re planning an extension or conversion, this will help

A clear guide to the architectural design process in Northern Ireland, covering extensions, garage conversions, loft conversions and internal alterations. Discover how GT Building Design delivers a smooth end‑to‑end service from survey to completion for NI homeowners.

30/08/2026

Northern Ireland homeowners are replacing old conservatories with warm, bright sunrooms. Fully insulated, comfortable all year, and a real upgrade to your home. Here are three Sunrooms NI projects showing what’s possible. See more on the website.

Sunrooms Northern Ireland: Transform your home with a modern sunroom extension. GT Building Design delivers warm, energy‑efficient sunrooms across Belfast and North Down, replacing old conservatories with bright, comfortable spaces designed for year‑round living.

22/08/2026

Thinking about replacing your conservatory roof? Read this first.
I’ve published a new blog explaining why roof replacements rarely work in Northern Ireland.... and why so many homeowners end up replacing the entire conservatory with a proper sunroom extension instead. - Real case studies, real photos and real costs.

Conservatory roof replacement in Northern Ireland rarely fixes leaks, condensation or temperature problems. Learn why most NI homeowners replace old conservatories with proper sunroom extensions for year‑round comfort and long‑term value.

15/08/2026

Why professional building inspections matter, even with Building Control onboard:

Many homeowners assume that if they have a Building Control officer inspecting their project the construction will automatically be correct. They believe Building Control will check everything, and that builders will follow the drawings. Unfortunately, this is not how domestic construction works.

Discover and learn more on my website.

Professional inspections in Northern Ireland are essential for any home extension or renovation. Builders don’t always follow drawings, Building Control won’t catch every issue, and hidden defects can cause dampness, heat loss and structural problems. Learn why proper on‑site checks protect yo...

30/07/2026

🏡 Thinking about improving your home?

I’ve just published a new guide covering the three easiest ways to make a real difference — from opening up your layout to adding more natural light, and even considering a small extension.

It’s written for Northern Ireland homeowners and packed with real examples from projects I’ve completed locally.

If you’re planning changes or just exploring ideas, this will give you a clear, practical starting point.

Expert home improvement advice for Northern Ireland homeowners. Planning, Building Control, internal alterations and extensions made clear and stress‑free.

25/07/2026

"Good design lasts - Donaghadee lighthouse proving the point. If you enjoy local projects, give the page a tap. 🌅"

Address

Donaghadee
Donaghadee

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+447719912695

Website

http://www.gtbuildingdesign.com/

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