GARDEN CABINS MAYO
From SustainaBuild
Tel: 087 4442593 e mail info@gardencabins.ie
Luxury Garden Rooms - Media Walls - Outdoor Kitchens - Landscaping


Welcome to Garden Cabins Mayo
Welcome to our website, the home of garden room builders Mayo.
Explore our extensive range of high-quality products designed to enhance your outdoor living experience. We're here to help you create the perfect garden home or retreat tailored to your needs. Thank you for visiting!
What makes Garden Cabins Mayo the No 1 Garden room company in Ireland Why Choose Garden Cabins Mayo? Built Like a House — Not Just a Log Cabin At Garden Cabins Mayo, we believe that if you are investing in a building that is intended to last for decades, it should be constructed to the same standards you would expect from a house. That is why we don't simply build a garden room with added insulation and claim an A1 energy rating afterwards. We approach every project as a building project — with the same focus on structure, insulation, weather protection, ventilation, electrical safety and energy efficiency that you would expect when building a traditional home. Fully Building-Regulations Focused Where a project is intended to provide habitable accommodation, we design and construct with Irish Building Regulations and Technical Guidance Documents full compliance in mind. This means paying attention to the things that are often overlooked in cheaper garden buildings: High-performance insulation and carefully considered U-values we can stand over. Proper thermal bridging considerations High-quality A-rated glazing Correct roof and floor construction detailing Effective damp and moisture protection Appropriate ventilation strategies Safe and properly designed electrical installations Energy efficiency and modern sustainable heating requirements as standard Structural integrity and long-term durability The result is a building that feels like a small home rather than an upgraded garden shed with plastic feel interiors or wall to ceiling wood through every single room. The Difference Is in the Construction Many garden buildings are designed primarily around appearance and price. Our approach is different. We start with the building envelope and how the building will perform, then design the finished space around it. The insulation, structure, windows, doors, roof, floor and services are considered as part of one complete system. That means you aren't simply buying a cabin. You're investing in a properly designed, highly insulated building constructed with long-term performance in mind. Why Pay for a Cabin When You Can Have a Building? Whether you are looking for a home office, studio, guest accommodation, garden retreat or a larger garden sited dwelling, our aim is the same: Build it properly from the ground up. With decades of construction experience behind the business, we understand that the cheapest building isn't necessarily the cheapest building to own. Better insulation, better detailing and better materials can mean a warmer, more comfortable and more energy-efficient building for years to come with considerable payback on running costs. Built by Builders — Not Just Cabin Sellers We're not simply a company selling a pre-designed cabin from a catalogue or the factory floor. We are Master Builders. That means we understand foundations, structure, roofing, insulation, plastering, rendering, electrical requirements and the practical realities and principles of constructing a building in the Irish climate. From the base underneath your building to the roof above it, every component matters. Our Promise If we're building it, we build it properly. Our goal is to provide a level of construction and attention to detail that you would expect from a new-build house — just on a smaller footprint. Garden Cabins Mayo — built like a house, designed for modern living.
45m² Two Bedrooms.
A Real Home.
Building Reg's Compliant A1 Energy Rated
Standard Build Package
High performance garden dwellings. Built to be fully compliant with Irish Building Regulations.
Combining comfort, energy efficiency and quality construction to last a lifetime.

45m²
LIVING SPACE
2
BEDROOMS
1
WETROOM
3mtr
SLIDING DOOR
A Rated
STANDARD PACKAGE
This is more than a garden cabin.

The GCM-45 Garden Home
Has been designed as a genuine home -
From 32 to 45 square meters of internal floor space every metre has been carefully considered to provide comfortable accommodation without wasted space.
The result is a practical one or two bedroom home with fully fitted kitchen, open plan living, space,utility/storage and a modern wetroom.
Building Regulation Performance — Part L Conservation of fuel & energy
Building ElementTarget U-valueStatus
External walls≤ 0.18 W/m²K ✓ Compliant*
Roof≤ 0.16 W/m²K ✓ Compliant*
Floor≤ 0.18 W/m²K ✓ Compliant*
Windows & external doors≤ 1.40 W/m²K ✓ Compliant*
* Compliance is subject to the final construction specification, certified product performance and verification of the completed dwelling as required under the Irish Building Regulations.
Designed Around How You Live

EXTERIOR
Acrylic render finish & cedar cladding
INTERIOR
Plaster skim finish ready to paint
INSULATION
Exterior wrap in EPS - Internal floor and roof 100mm PIR
STRUCTURE
On site timber frame construction

New Garden Home & Garden Cabin Planning Rules
— Ireland 2026
What changed in the planning rules for garden buildings in Ireland?
New Planning and Development (Exempted Development) Regulations 2026 came into effect on 27 July 2026,
introducing important changes for homeowners.The changes include
:A new exemption allowing certain detached habitable garden homes from 32 m² up to 45 m².
An increase in the maximum size of certain garden structures from 25 m² to 30 m².
The existing exemption for certain house extensions has also increased to 45 m².
These are planning exemptions only. They do not remove the requirement to comply with Building Regulations, Building Control, Fire Safety requirements or other applicable legislation.

What's Included in the Standard Building Package
Structure Exterior
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Timber frame construction
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100mm external EPS wrap insulation
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150mm PIR floor insulation
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100mm Rockwool between stud
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Warm roof construction
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Acrylic render finish
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Energy efficient windows & doors
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3 mtr sliding patio door
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External back door
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Triple glazed windows & doors
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Gutters & rainwater goods
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Composite or cedar cladding
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Low maintenance requirements
Internal Finish
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Full plastered finish
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Contemporay fitted kitchen
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Underfloor heating
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Luxury laminate floors
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Walk in tiled wet-room
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Independent consumer unit
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Electric power shower
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WC & wash hand basin
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Internal doors & skirting board
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Integrated appliance package
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Internal decoration
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Full plumbing installation
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Bi-fold door option
Services & Approach
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BER A rating certification
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Full electrical installation
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Air to water heating system
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Clear specifications
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Consultation & site assessment
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Building regulations compliant
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Transparent site servicing costs
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32 to 45 sq mtr builds
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Ready to go floor plan designs
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1 or 2 bedroom dwellings
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Exceptional value
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Cabins built like houses by craftsmen
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CAT 6 internet connection
Site Preperation Costs
Every site is different and offers varying technical and groundwork specific challenges. Therefor we are unable to offer a standard costing for your cabin build below ground until we have determined the exact spec. We favour a fully insulated concrete slab over cheaper and less robust elevated flooring techniques. Our installations achieve a 0.15 W/m2k u - value which surpasses building reg's for raft foundations (0.18) Your initial site consultation will enable us to give you a fully priced costing for site preparation including a concrete slab base, connecting all waste services, connecting to your electrical, water and internet services. We have all our own plant and machinery and will offer an unbeatable quote to get you ready to build your dream garden home.

Performance Guarantees
A comfortable energy efficient home requires the complete building envelope to perform together

Insulated
Fabric
External EPS & internal PIR rigid insulation attains a u value unmatched in the Irish market.
Achieving & surpassing building regulations for energy efficiency

Efficient
Glazing
3 metre double glazed sliding doors and high efficiency windows as standard meeting u values for minimal heat loss and maximum solar gains

Airtight Construction
Careful detailing, frame sealing twchniques and vapour control layers help to minimise air leakage throughout the building envelope

Concrete Foundations
Fully insulated concrete bases that will stand the test of time and eradicate problems associated with raised floor builds open to the elements

Heating &
Ventilation
To meet stringent BER A rated targets our builds incorporate super efficient Air to Air (heating & cooling) or Air to Water (underfloor heating) systems
Bespoke Garden Cabins
Garden Cabins Mayo are premier builders of turn key garden home and room solutions. Hand crafted to the highest standards our stunning creations are fully insulated, maintenance free and suitable for year round use as auxiliary dwellings to your main home, offices, kids hangouts, bars, summerhouses, golf simulators, guest spaces or the classic man cave/she shed..... and so much more.
call 087 4442593
Do it Once - Do it Right



Here at Garden Cabins, we offer a no-obligation home consultation to help you design and envision your dream home or garden oasis. The Consultation, site assessment and detailed scope of works estimate for all works is €250 which is returnable on acceptance of commencement.
During the consultation, we’ll guide you on the ideal options for your site while you bring your creativity to life with choices for layout, window and door placements, lighting, flooring, and more.
Our garden rooms come in a wide range of sizes, all the way up to the maximum permitted development limit of 45 sq mtr's for garden homes and 30 sq mtr,s on garden cabins of internal floor space, which means no planning permission is required in most cases.
Let’s bring your vision to reality with a bespoke garden room tailored to your style and needs!
Tel: 087 4442593
