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A tiny house with large glass windows, sits in the backyard surrounded by a wooden fence a

Garden rooms in Armagh, built to Passivhaus standards

LEED-certified sustainable builds. Over 30 years’ expertise. Bespoke designs for every lifestyle.

What makes our approach different?

Permanent, high-specification structures

Expertly built using premium materials to deliver lasting quality, strength, and performance.

Advanced airtightness and insulation

Designed to maximise energy efficiency and create a comfortable indoor environment all year round.

Federation of Master Builders member

Demonstrating a commitment to exceptional workmanship, industry standards, and professional service.

Year-round bespoke garden rooms for Armagh homes

We design and build custom garden rooms that let you make the most of your outdoor space in Armagh, no matter the season. Our insulated structures are purpose-built for everything from relaxing family lounges to home offices, gyms, or even garden salons. With every project, we focus on your comfort, energy efficiency, and seamless integration with your property. We don’t use prefabricated templates; every build is tailored to your taste and requirements, giving you a unique addition that adds real value to your home. Whether you need a private workspace or a retreat for guests, our team covers everything from design to completion for a hassle-free experience.

Living room with view of garden
Private home green house, sun room

Eco-friendly construction with lasting quality

Our garden rooms in Armagh go beyond basic timber sheds. We use LEED-certified sustainable methods and ethically sourced materials to create structures that are as good for the planet as they are for your lifestyle. Our advanced wall systems and high-performance insulation deliver permanent, climate-resilient spaces designed to last for decades. Passivhaus building techniques are at the core of our approach, ensuring your new garden room stays warm in winter and cool in summer while keeping energy bills low. As accredited members of the Federation of Master Builders, we uphold strict industry standards for safety and quality.

What you get with our garden rooms

  • Custom layouts designed for your needs.

  • Insulated for year-round comfort.

  • High-performance glazing and airtight construction.

  • Breathable wall systems for healthy indoor air.

  • Eco-friendly materials and sustainable practices.

  • Options for garden offices, gyms, or salons.

  • Fully project managed from planning to handover.

  • Federation of Master Builders membership for peace of mind.

Image 2 of 2 in a 2 image series showing the room before and after interior fit and decora

The benefits of a custom garden room

Adding a garden room gives you the flexibility to expand your living or working space without the disruption of a traditional extension. Every structure is tailored to blend with your home and lifestyle, creating a peaceful retreat just steps from your door. Our focus on robust construction and climate control means your room is comfortable in all weather. With our experience and full insurance, you gain valuable space that’s built to last and boost your property’s value.

Upgrade your outdoor living space today

Fill in our form for a tailored quote for garden rooms in Armagh.

Contact us

CDM Ireland Limited

3 Drummond Road, Newry, 

County Down, BT35 6NH

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Opening hours

Monday – Friday: 08:00 - 17:00

Saturday – Sunday: Closed

CDM IRELAND LIMITED, registered as a limited company in Northern Ireland under company number: NI673757.


Registered Company Address: 9 Carraig Crosain, Mayobridge, Newry, Northern Ireland, BT34 2FR.

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